This powder magnetic core is composed of: soft magnetic particles; and an insulating material that is provided between the soft magnetic particles. The surface of this powder magnetic core is covered with a coating material of a compound that contains siloxane. The interior portion of this powder magnetic core is impregnated with the coating material. This powder magnetic core has a density of 5.8 g/cm3 or more.
H01F 1/147 - Alloys characterised by their composition
H01F 1/24 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
2.
BEARING DEVICE AND SPINDLE DEVICE WITH BEARING DEVICE
This bearing device comprises a first bearing (5a), a spacer (6), and a second bearing (5b) aligned along an axial direction on an outer circumference of a main shaft (4). Each of the first bearing (5a) and the second bearing (5b) comprises an inner ring (5ia, 5ib), an outer ring (5ga, 5gb), and a plurality of rolling elements (Ta, Tb). The spacer (6) comprises an inner ring spacer (6i) between two inner rings (5ia, 5ib), and an outer ring spacer (6g) between two outer rings (5ga, 5gb). Of the inner ring spacer (6i) and the outer ring spacer (6g), the fixed-side spacer is divided into a first member (A) and a second member (B), and a circuit board (33) is disposed in a space therebetween.
F16C 19/54 - Systems consisting of a plurality of bearings with rolling friction
B23B 19/02 - Working-spindles; Features relating thereto, e.g. supporting arrangements
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
F16C 33/66 - Special parts or details in view of lubrication
F16C 35/12 - Rigid support of bearing units; Housings, e.g. caps, covers for spindles with ball or roller bearings
To provide a piston ring having superior wear resistance and causing less wear damage of a cylinder. A piston ring 1 is used in a reciprocating compressor that compresses gas. The piston ring 1 is formed of a resin composition containing polyetheretherketone resin as a main component. The melt viscosity of the polyetheretherketone resin at the shear rate of 1,000/s and the temperature of 400° C. is 200-550 Pa·s based on a measuring method defined in ISO 11443. The resin composition contains 5-25 vol % of carbon fiber and 5-25 vol % of a solid lubricant, relative to the whole of the resin composition. The solid lubricant includes at least one of PTFE resin and graphite.
F16J 9/26 - Piston-rings, seats therefor; Ring sealings of similar construction in general characterised by the use of particular materials
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F16J 9/28 - Piston-rings, seats therefor; Ring sealings of similar construction in general characterised by the use of particular materials of non-metals
A clutch unit (100) includes an operation lever (21), an operation member (22), an input-side clutch (50), an output-side clutch (60), and a bottomed cylindrical housing (11). The input-side clutch (50) includes an input-side inner ring member (51) and an operation bracket (54). The operation bracket (54) includes an engagement portion (54b) that engages with the input-side inner ring member (51), a facing portion (54d) that faces the bottom surface (11 a) of the housing (11) with a gap therebetween, a fastened portion (54c) that penetrates a through hole (11h) formed in the bottom surface (11a) of the housing (11) and is fastened to the operation member (22), and a sliding-contact portion (54e) that extends from the facing portion (54d) toward the bottom surface (11a) of the housing (11) and comes into sliding-contact with the bottom surface of the housing (11).
B60N 2/16 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
F16D 41/063 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by moving along the inner and the outer surface without pivoting or rolling, e.g. sliding wedges
F16D 41/08 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
5.
VIBRATION ANALYSIS APPARATUS AND VIBRATION ANALYSIS SYSTEM
A vibration analysis apparatus diagnoses a machine state based on vibration detected by a measurement instrument. A setting unit sets a diagnosis target, a rotation speed, and a determination criterion value. A communication unit communicates with the measurement instrument to transmit a trigger to start measurement of vibration to the measurement instrument or to receive data on a vibration waveform from the measurement instrument. A condition determination unit determines a diagnosis condition based on information on the diagnosis target. An analyzer subjects data inputted from the measurement instrument to frequency analysis. An abnormality determination unit makes determination as to an abnormality of the diagnosis target based on the determination criterion value. Thus, the vibration analysis apparatus and a vibration analysis system capable of vibration analysis with certain accuracy being maintained regardless a skill level of a user can be provided.
Provided is a ball screw device comprising: a ball screw shaft having thread grooves provided in the outer circumferential surface thereof; a nut member which has thread grooves provided in the inner circumferential surface thereof and into which the ball screw shaft is inserted; a plurality of balls which fit between the thread grooves of the ball screw shaft and the thread grooves of the nut member; and a lock mechanism that restricts the rotation of the nut member. In a target position in the axial direction, a ball screw is retained in a locked state without a supply of electricity.
F16H 25/22 - Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
F16D 27/01 - Magnetically-actuated clutches; Control or electric circuits therefor with permanent magnets
F16D 27/04 - Magnetically-actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces
F16D 55/06 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by moving discs or pads away from one another against radial walls of drums or cylinders without self-tightening action
F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 7/102 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
This mechanical component is made of steel that is subjected to quenching and tempering, the mechanical component comprising a carbonitrided layer on the surface thereof. The steel contains 0.13-0.58 mass% inclusive of C, 0.15-0.35 mass% inclusive of Si, 0.6-1.1 mass% inclusive of Mn, less than 0.025 mass ppm of P, less than 0.025 mass ppm of S, 1.2 mass% or less of Cr, 0.3 mass% or less of Mo, 0.25 mass% of V, and 0.25 mass% of Ni, the balance being Fe and unavoidable impurities. The average carbon concentration in the steel on the surface is 0.6 mass% or greater. The nitrogen concentration in the steel on the surface is 0.10 mass% or greater.
C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
In this rolling bearing, a plurality of balls interposed between an inner and an outer race are held by a cage, and a seal member (6) that closes off a bearing space between the inner race and the outer race is attached to the outer race. A seal groove (7) is formed in the circumferential direction on the outer circumferential surface of the inner race, and the seal member (6) is a contact seal having a lip (15) that is in contact with the seal groove (7). An outside groove wall surface (7c) of the seal groove (7) is formed on an inclined plane inclined on the outer diameter side toward the outer side in the axial direction. The seal member (6) is formed in a round shape in which a tip (15c) of the lip (15) is in contact with the outside groove wall surface (7c) of the seal groove (7) at a contact angle of 80-100°. The angle of inclination (I) of the outside groove wall surface (7c) with respect to the axial direction is 55-65°.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
C12N 5/071 - Vertebrate cells or tissues, e.g. human cells or tissues
B05C 1/02 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
B05C 5/00 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
B05C 11/10 - Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
B05D 1/26 - Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
B05D 1/36 - Successively applying liquids or other fluent materials, e.g. without intermediate treatment
B05D 3/00 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
B05D 7/00 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
C12N 5/077 - Mesenchymal cells, e.g. bone cells, cartilage cells, marrow stromal cells, fat cells or muscle cells
C12N 5/10 - Cells modified by introduction of foreign genetic material, e.g. virus-transformed cells
Provided is an insulated rolling bearing having an insulating coating on the outer peripheral surface of an outer ring or another such location, the insulated rolling bearing being exceptional in terms of properties for preventing electrolytic corrosion. This insulating rolling bearing 1 comprises an inner ring 2, an outer ring 3, raceway surfaces that are formed on the outer peripheral surface of the inner ring 2 and the inner peripheral surface of the outer ring 3, and a plurality of balls 4 that are interposed between the raceway surfaces, the outer peripheral surface 3a of the outer ring 3 having a resin coating 6 (insulating coating), and the resin coating 6 in the insulated rolling bearing 1 being composed of a resin composition having an insulation resistance value of 2000 MΩ or greater and a capacitance of10 nF or lower, the resin composition containing a polyphenylene sulfide resin, glass fibers, an inorganic filler having a thermal conductance of 10 W/m·K or greater, and a thermoplastic elastomer.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
Provided is a clutch unit (1) including: a static system (housing (40)); an output shaft (30); a first clutch part (10); and a second clutch part (20). The first clutch part (10) includes: an input rotary body including an inner ring (13); an output rotary body including an outer ring (14); and a plurality of cylindrical rollers (15) disposed therebetween. The clutch unit (1) includes: a rotation suppressing member (70) configured to apply rotational resistance to the output rotary body of the first clutch part (10); and rotation stopping mechanisms (80) (recessed portions (71) of the rotation suppressing member (70) and extending portions (41) of the housing (40)) configured to restrict rotation of the rotation suppressing member (70) with respect to the housing (40).
F16D 41/066 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
B60N 2/16 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
F16D 41/08 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
A solid-lubricated rolling bearing (1) comprises an outer race (2), an inner race (4), a plurality of rolling elements (6) interposed between the outer race (2) and the inner race (4), and a solid lubricating agent (10) separating the rolling elements (6) from one another in a circumferential direction. A volume ratio of the solid lubricating agent (10) occupying a bearing internal space between the outer race (4) and the inner race (2) is set to 40 to 60%. The solid lubricating agent (10) is guided on at least one of an inner diameter surface (2a) of the outer race (2) and an outer diameter surface (4a) of the inner race (4).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 33/66 - Special parts or details in view of lubrication
14.
GREASE COMPOSITION, ROLLING BEARING, AND LUBRICATION METHOD
Provided are: a grease composition that achieves low noise together with high-temperature, high-speed durability; and a rolling bearing in which the grease composition is encapsulated. The grease composition 7 contains a base oil, a thickener, and an additive. The base oil is a mixed oil of a synthetic hydrocarbon oil and an ester oil. The thickener is an aliphatic diurea compound. The initial acid value of the grease composition is 2.0 mg KOH/g or more. The additive contains the elements sulfur (S), phosphorus (P), and zinc (Zn), and the total amount of these elements contained in the grease composition 7 is 0.50 mass% or more relative to the total amount of the grease composition.
C10M 169/02 - Mixtures of base-materials and thickeners
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 33/66 - Special parts or details in view of lubrication
C10M 107/02 - Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
C10N 30/10 - Inhibition of oxidation, e.g. anti-oxidants
C10N 40/00 - Specified use or application for which the lubricating composition is intended
A bearing device (1) comprises a bearing (2) and an acceleration sensor (15). The bearing (2) includes an outer race (3), an inner race (4), and rolling elements (8). The acceleration sensor (15) detects vibrations of the bearing (2). A first mating element (33A) is formed in a fixed race integral member which includes a fixed race, this being either the outer race (3) or the inner race (4), and which is integrated with the fixed race. The first mating element (33A) is at least one of a recessed portion and a projecting portion. The acceleration sensor (15) is fixed to the fixed race integral member.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 19/52 - Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
A hydrodynamic bearing (bearing sleeve 8) is equipped with a sintered body in which dynamic pressure-generating parts A1, A2 are die-formed on the inner-circumferential surface thereof. The dynamic pressure-generating parts A1, A2 have a plurality of dynamic pressure grooves G1 which extend in a direction which is angled relative to the circumferential direction, and a plurality of inclined hill sections G3 which are provided between the plurality of dynamic pressure grooves G1 in the circumferential direction. The circumferential direction width h[mm] of each inclined hill section G3 and the dynamic pressure groove G1 depth Hf[μm] adjacent to said hill section G3 on one side thereof in the circumferential direction satisfy 0.1
The objective of the present invention is to make it possible to avoid contraction of an inner diameter surface of an inner race of a rolling bearing even if a magnetic ring of a magnetic rotation sensor is coupled to an outer circumferential portion of the inner race, and to improve the reusability of the magnetic ring when replacing the inner race, while enabling the outer circumferential portion of the inner race to be coupled to the magnetic ring even if the width of the inner race is small. In order to achieve this objective, a hook member (20) formed in an annular shape using a resin is provided. An outer circumferential groove (12a) extending in a circumferential direction is formed in an outer circumferential portion (12) of an inner race (3). The hook member (20) includes a protruding portion (25) that is engaged with the outer circumferential groove (12a) of the inner race (3). A metal core (18) is retained by the hook member (20).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A claw pole electricity generator (4) includes a stator (10) provided in a sensor unit (5), and a magnetic ring (11) fixed to a rotating member (1). A sensor board (12) is accommodated in an opening portion (13) of the sensor unit (5). A yoke (20) has a plurality of cutout portions (35) which expose a portion of an internal coil (22) to the outside of the yoke (20), and which communicate with the opening portion (13). The cutout portions (35) are disposed in a plurality of locations that are spaced apart in a circumferential direction. The sensor board (12) and the coil (22) can be protected by injecting a sealing material (14) from the opening portions (13).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
Provided is a ball bearing that has excellent low torque performance without using a holder with a special shape. This ball bearing comprises an inner race 2 having an inner race track groove on the outer circumference thereof, an outer race 3 having an outer race track groove on the inner circumference thereof, balls 4 interposed between the inner race track groove and the outer race track groove, and a holder 5 that holds the balls 4. The number Z of the balls 4 satisfies the condition of formula (1) below. (1): Z ≤ ((π × Dp)/2Da) where Z is the number of the balls 4 (Z is an integer of three or more), Dp is the pitch diameter of the balls 4 [unit: mm], and Da is the diameter of the balls 4 [unit: mm].
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
A power supply device (17) comprises a first circuit (61) and a converter (53). The first circuit (61) converts alternating-current voltage to a first direct-current voltage and outputs the first direct-current voltage. The converter (53) outputs a second direct-current voltage produced by adjusting the first direct-current voltage to a first voltage range to an electronic circuit (54). The input voltage of the converter (53) is set to a second voltage range. The first circuit (61) converts the alternating-current voltage to a first direct-current voltage adjusted to the second voltage range.
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
G05F 3/16 - Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
H02K 11/35 - Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
H02M 3/155 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 7/10 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
This bearing device comprises a bearing and a sensor unit (6). The sensor unit (6) is fixed to a fixed ring (3) of the bearing and holds a sensor (15) for monitoring the state of the bearing. The sensor unit (6) includes a holding member (12) which has a side plate section (12A) and a peripheral section. The holding member (12) is fitted to the fixed ring (3) in the peripheral section. A first fitting surface (12Ca) fitted to the fixed ring (3) in the peripheral section and a second fitting surface (3a) fitted to the peripheral section in the fixed ring (3) are disposed such that portions thereof are in contact with each other, and the other portions thereof are distant by a gap from each other.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A wheel bearing device 1 comprises: an outer wheel 2 (external member); a hub wheel 3 and an inner wheel 4 (internal member); a ball 8 (rolling body); and an outer-side seal member 10 (seal member). The outer-side seal member 10 has a cored bar 11 and a seal section 12. The seal section 12 has: a projection 12e that protrudes toward the inner side and contacts an outer-side end surface 2g of the outer wheel 2; and a protrusion 12f that is disposed radially outward of the projection 12e, that protrudes toward the inner side, and that contacts a chamfered section 2h of the outer wheel 2.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16J 15/3276 - Mounting of sealing rings with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted
23.
BEARING SEALING DEVICE AND VEHICULAR BEARING DEVICE
Provided are a bearing sealing device and a vehicular bearing device that have excellent resistance to three-body abrasive wear even under an environment penetrated by mud water or the like, and with which it is possible to improve sealing performance. A bearing sealing device 11, which is attached between an outer race and an inner race to seal a bearing space, comprises a seal member 14 made of an elastic material, and a slinger 16 made of metal. The seal member 14 has a main lip 14b and a side lip 14c provided on the outside of the main lip 14b. Each of the lips 14b and 14c is in contact with the slinger 16 with a predetermined interference. The part of the slinger 16 in contact with the main lip 14b and the side lip 14c has a hardness HRC larger than 10.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16J 15/3232 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
F16J 15/3244 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action
F16J 15/3256 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
24.
AXLE BEARING, GREASE COMPOSITION AND ROLLING BALL BEARING
To provide an axle bearing having a low torque property and superior bearing lifetime. A hub bearing 6 is configured to rotatably support a wheel of a vehicle, and has a grease composition 10 sealed in an inner space thereof. The grease composition 10 contains a base oil and a thickener. The shear stress of the grease composition at the shear rate of 1,000-10,000 s−1 at 25° C. is 3,000 Pa or less. The viscosity of the grease composition is 1 Pas or less. The yield stress of the grease composition at 25° C. measured by a dynamic viscoelasticity analysis method using a rheometer is 1,300-3,000 Pa.
F16C 33/66 - Special parts or details in view of lubrication
C10M 107/02 - Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 169/02 - Mixtures of base-materials and thickeners
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
25.
REVERSE INPUT CUTOFF CLUTCH AND ACTUATOR USING SAME
This reverse input cutoff clutch is configured in a manner such that in response to reverse input torque during normal operation, an output shaft (3) stops rotating as a result of a moving force acting on a spacer (6) and a revolution/rotation operation of the spacer (6) being impeded, and during emergency operation, a cam receiver (2) and an output shaft (3) are connected by tightening a screw (12) screwed into the cam receiver (2), which integrally rotates with an input shaft (1), and pressing the same against the flange part (3a) of the output shaft (3), making it possible to apply a reverse input torque and for the output shaft (3) to integrally rotate with the input shaft (1).
A sintered oil-impregnated bearing (8) has a bearing surface (8a1) that forms a radial bearing gap with a shaft member (2). The bearing surface (8a1) has a plurality of pores. The pores that have a pore volume of greater than 0.0005 mm3 are considered to be large pores (40), and there are no large pores (40) from the bearing surface (8a1) to a depth of 50 μm.
Provided are: a resin retainer capable of suppressing initial leakage of grease; and a roller bearing provided with said retainer. A retainer 5 is a resin retainer for a crown-shaped roller bearing, the retainer having a plurality of pockets 52, each of which opens on one side in the axial direction and holds a ball, i.e., a rolling element. The retainer has a connecting part 54 that connects the pockets 52 adjacent to each other in the circumferential direction, and the connecting part 54 has, on an end surface thereof on the pocket opening side, an inclined surface 56 inclined with respect to the radial direction when observed in a cross-section view taken along the axial direction. The connecting part 54 has a wall thickness ho (mm) at an outer diameter side end section Eo, which is less than the wall thickness hi (mm) at an inner diameter side end section Ei.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 33/66 - Special parts or details in view of lubrication
Provided are: a grease composition that achieves low dust generation properties, rust resistance, and high-temperature/high-speed durability; and a rolling bearing in which the grease composition is encapsulated. The grease composition 7 contains a base oil, a thickening agent, and a rust inhibitor. The base oil contains a synthetic hydrocarbon oil as a main component, does not contain an ester oil, and has a kinematic viscosity of 40 mm2/s to 90 mm2/s at 40ºC. The thickening agent is a diurea compound obtained by reacting a diisocyanate component and a monoamine component. The monoamine component constitutes an aliphatic monoamine and an alicyclic monoamine and is contained at an amount of less than 14 mass% of the total amount of the base oil and the thickening agent. The rust inhibitor contains a sorbitan fatty acid ester and has a worked penetration of 200 to 240 as measured in accordance with JIS K 2220.
C10M 169/06 - Mixtures of thickeners and additives
C10M 107/02 - Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 33/66 - Special parts or details in view of lubrication
C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
C10N 40/00 - Specified use or application for which the lubricating composition is intended
Provided is a shell type needle roller bearing with an outer ring, which uses a material with excellent corrosion resistance, is easily press fit, and can be manufactured at low cost. A shell type needle roller bearing (8) having a shell type outer ring (1) made of an austenite stainless material, and a non-heat-treated surface on an outer diameter surface (1a) of the shell type outer ring (1) is manufactured.
A control device (4) for a link actuation device (1) comprises an instruction conversion unit (42), an arm setting unit (50), and an arm control unit (39). The instruction conversion unit (42) performs inverse conversion to calculate rotation angles for arms (11a to 13a) corresponding to a target link attitude (θ, φ), when the attitude of a distal-end-side link hub (15) opposite a proximal-end-side link hub (14) is changed. The arm setting unit (50) sets two of the arms as drive arms for driving and the remaining arm as a free arm, on the basis of the calculated rotation angles for the arms (11a to 13a). The arm control unit (39) drives and positions the free arm after only the two drive arms that have been set are driven and positioned.
Provided is a rolling bearing 1 in which, when an area enclosed by a line connecting an outer edge of a scatter plot obtained by plotting an infinite number of positions at which a retainer 5 located in a neutral position can be present without contacting a ball 4 on two-dimensional coordinates is defined as a retainer movable area 10, a ratio Ri/Re of a maximum inscribed circle diameter Ri of the retainer movable area 10 to a minimum circumscribed circle diameter Re of the retainer movable area 10 is 0.900 or less.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A steering function-equipped hub unit (1) according to the present invention comprises: a hub unit body (2) that has a hub bearing (15); a unit support member (3) that rotatably supports the hub unit body (2) around a steering axial center (A) extending in the vertical direction; and a steering actuator (5) that drives the hub unit body (2) so as to rotate around the steering axial center (A). The steering actuator (5) comprises: a motor (26); a speed reducer (27) that reduces the speed of rotation of the motor (26); and a linear motion mechanism (25) that converts rotational output of the speed reducer (27) to linear motion of an output rod (25a) through a rotation support member (28). The speed reducer (27) is a parallel shaft-type speed reducer using pulleys (27a, 27b) and a belt (27c), and comprises a first seal member (51) which is a seal member for sealing the area between the speed reducer and the rotation support member (28) adjacent thereto.
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B62D 7/09 - Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle characterised by means varying the ratio between the steering angles of the steered wheels
B62D 17/00 - Means on vehicle for adjusting camber, castor, or toe-in
33.
HUB UNIT WITH STEERING FUNCTION, STEERING SYSTEM, AND VEHICLE
The present invention provides a hub unit with a steering function that converts linear motion of an actuator into rotational motion with high efficiency and that has a high strength with respect to reverse input from a wheel. The present invention comprises: a hub unit body (2) that has a hub bearing (15) which rotationally supports a wheel (9); a unit support member (3) that rotatably supports the hub unit body around a turning axis (A) extending in the up-down direction; and a steering actuator (5) that drives the hub unit body to rotate about the turning axis, wherein the steering actuator has a motor and a translational mechanism (25) that converts rotation output from the motor into linear motion, a joint part (8) is interposed between the translational mechanism and the hub unit body, and, when the hub unit body is at a neutral position in the steering angle, an axis (L) of the translational mechanism of the steering actuator is orthogonal to a plane (P) including the turning axis of the hub unit body and a first center point (JO1) of the joint part on the hub unit body side.
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B62D 7/09 - Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle characterised by means varying the ratio between the steering angles of the steered wheels
An application mechanism applies a liquid material on an application surface. The application mechanism includes: an application needle holder fixing unit; an application needle holder detachably attached to the application needle holder fixing unit; an application needle held at the application needle holder; and a cushioning mechanism. The cushioning mechanism is capable of cushioning an impact when the application needle is brought into contact with the application surface.
B05C 1/02 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
A monitoring device (80) comprises: an acquisition unit (81) that acquires a measured value from a sensor (70); a detection unit (82) that detects abrasion noise of a bearing (51) on the basis of the measured value; and a diagnostic unit (83) that diagnoses the state of the bearing (51) on the basis of a measured value. The diagnostic unit (83) diagnoses the bearing (51) by using a measured value that does not include the abrasion noise detected by the detection unit (82).
Provided is a wheel bearing device with which it is possible to suppress an increase in weight while suppressing the generation of abnormal sounds. In a wheel bearing device 1: a ratio of an axial direction length C of a recessed portion 3h formed in a through-hole 3e of a hub ring 3 to a pitch circle diameter A of the recessed portion 3h formed in an inner circumferential surface of the hub ring 3 is 0.7≤(C/A)≤1.07; a ratio of an axial direction distance E between a flange surface 3j of a wheel attachment flange 3b and an inner end surface 4b of an inner race 4 to an inter-ball pitch F between an inner ball row 5 and an outer ball row 6 is 2.85≤(E/F); and a ratio of the axial direction distance E to a pitch circle diameter D of balls 8 is 0.8≤(E/D)≤0.94.
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axles; Couplings between axle parts or sections
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16D 3/223 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
An insulated bearing device is provided which includes a housing, an outer ring and rolling elements, and in which an insulating film for providing electrical insulation between the housing and the outer ring is disposed on the surface of the outer ring. The insulating film includes a straight portion extending along the outer periphery of the outer ring and having a constant outer diameter in the axial direction. The housing has, on the inner periphery of its housing hole, an inner peripheral cylindrical surface formed at a position intersecting with the axial centerlines of the rolling elements, and the straight portion is fitted to, and in contact with, the inner peripheral cylindrical surface. The contact range between the inner peripheral cylindrical surface and the straight portion has an axial length shorter than the entire axial length of the straight portion.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
Provided is a wheel bearing device that facilitates processing for spline-fitting a wheel bearing and a constant-velocity universal coupling to each other. In a wheel bearing device 1, a through-hole 3e of a hub wheel 3 includes a first hole 31 in which a spline-fittable recess 3h is formed, and a second hole 32 that has a diameter greater than or equal to that of the first hole 31. A protrusion 24 that is spline-fittable in the recess 3h is formed on the outer peripheral surface of a stem portion 23 of the constant-velocity universal coupling 20. The protrusion 24 includes: a first protrusion 25 that spline-fits in the recess 3h in a generally closely contacted state; and a second protrusion 26 that is positioned on the outer side than the first protrusion 25 and is spline-fittable in the recess 3h with a gap m therebetween in the radial direction or the circumferential direction, or both the radial direction and the circumferential direction.
B60B 35/18 - Torque-transmitting axles characterised by the arrangement of the bearings for the torque transmitting elements in the axle housings
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axles; Couplings between axle parts or sections
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16D 1/06 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
The present invention addresses the problem of making a wheel bearing device further lightweight while increasing the rigidity of the wheel bearing device. This wheel bearing device (1) comprises: an outer ring (2) having a double row of outer raceways (23), (24); an inner member which is composed of a hub ring (3) having a small-diameter step (31) extending in the axial direction on the outer periphery of the hub ring, and an inner ring (4) press-fitted into the small-diameter step (31), and has a double row of inner raceways (33), (41) opposing the double row of outer raceways (23), (24); and a double row of ball lines (5), (6) rollably accommodated between both raceways of the outer ring (2) and the inner member, wherein the hub ring (3) has a caulked part (38) caulked to the inner ring (4) on the axial direction end of the hub ring, and the circularity A of an outer peripheral surface (38a) of the caulked part (38) is 0.4 or lower.
B21D 39/00 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
B60B 35/02 - Dead axles, i.e. not transmitting torque
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
This rotation transmission device includes: a roller retainer (7) supported between the outer periphery of an inner ring (5) and the inner periphery of an outer ring (4) so as to be movable in the circumferential direction; an armature (10) disposed opposing an electromagnet (9) in the axial direction so as to perform axial direction movement when the electromagnet (9) is energized; and a motion conversion mechanism (11) that moves the roller retainer (7) in the circumferential direction in accordance with the axial direction movement of the armature (10). The electromagnet (9) is formed to have a greater inner diameter than the outer diameter of the outer ring (4), and the electromagnet (9) is disposed radially outward of the outer ring (4) so as to surround the outer periphery of the outer ring (4).
F16D 41/067 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
F16D 41/08 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
F16D 27/12 - Clutch systems with a plurality of electromagnetically-actuated clutches
41.
PLUNGING TYPE CONSTANT VELOCITY UNIVERSAL JOINT FOR PROPELLER SHAFT
A plunging type constant velocity universal joint 1 for a propeller shaft includes an outer joint member 2, an inner joint member 3, eight torque transmidetting balls 4, and a cage 5. A center of curvature O1 of a spherical outer surface 12 and a center of curvature O2 of a spherical inner surface 13 of the cage 5 each have an equal and axially opposite offset (f) with respect to a center O3 of pockets 5a. A ratio f/PCDBALL between the offset (f) of the cage 5 and a pitch circle diameter (PCDBALL) of the torque transmitting balls 4 is 0.07 or more and 0.09 or less.
F16D 3/2245 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a sphere where the groove centres are offset from the joint centre
F16D 3/227 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
To provide a rolling bearing having superior handling property and creep resistance. A rolling bearing 1 includes an inner ring 2 and an outer ring 3 that are raceway rings, and a plurality of balls 4 interposed between the inner ring and the outer ring. The outer ring 3 is fitted to a housing 10. The rolling bearing 1 includes a surface coating film 8 on an outer ring outer diametrical surface 3a that is a fitting surface with the housing 10. The surface coating film 8 contains: a binder containing two or more kinds of thermosetting resins having different average molecular weights; and a solid lubricant. The solid lubricant contains molybdenum disulfide, polytetrafluoroethylene resin, and graphite.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
In the present invention, a parameter adjustment device (5) comprises: a coordinate data acquisition unit (10) that acquires coordinate data of industrial machinery; a parameter generating unit (20) that generates operating parameters; a parameter storage unit (30) that stores the operating parameters; a status data acquisition unit (40) that acquires status data of industrial machinery; an index data calculating unit (50) that calculates index data on the basis of the status data; a sample storage unit (60) that stores sample data in which the operating data and the index data are associated; a parameter search unit (70) that searches the operating parameters estimated to be suitable using the sample data; and a model learning unit (80) that generates learning models for estimating suitable parameters from the coordinate data using the learning data in which the operating parameters estimated to be suitable and the coordinate data are associated.
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
G05B 19/4155 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
When a diameter of a rolling element (4) is Dw (mm), the number of rolling elements (4) is z (pieces), a pitch circle diameter of the rolling elements (4) is dp (mm), capacitance is C (F), and electrical resistance is R (Ω), a pair of X and Y defined by the following formulas (1), (2) satisfy 1.6 < X < 130, and Y ≥ 2.45×10-4, or 1.6 < X, and 0 < Y < 2.45×10-4.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
In at least one of an inner ring raceway surface, an outer ring raceway surface, and a rolling surface for rollers 13, there are formed crownings 13b, 13c having a generatrix shape in which a plurality of circular arcs are connected to thereby approximate a reference logarithmic curve. A ratio a/b is set to a range of 0.55≤a/b≤0.95, where a=DP3−DP4 and b=DP2−DP3, DP1 to DP4 being the respective drop amounts at generatrix-direction positions GP1 to GP4 of the crownings.
In order to minimize temperature increase when used under the condition that an inner member having a race surface on the outer side thereof rotates while an outer member having a race surface on the inner side thereof is stationary and to facilitate the insertion of rollers between drop prevention portions of adjacent posts in a rolling-element-guided cage, posts (41) are configured to be capable of coming into contact with, on drop prevention portions (44) thereof, rollers (30) for guiding a cage (40), and in a virtual plane orthogonal to the central axis (O) of a roller (30), the contact angle (θ) formed by a first virtual straight line (L1) connecting to the central axis (O) from a contact point (P) between the roller (30) and a post (41) and a second virtual straight line (L2) orthogonal to the radial direction and passing through the central axis (O) is set to 20-24°.
A bearing part (10) is composed of a steel, and has a quench-hardened layer (11) in a surface of the bearing part. The quench-hardened layer includes a plurality of martensite crystal grains. The plurality of martensite crystal grains are classified into a first group and a second group. A minimum value of crystal grain sizes of the martensite crystal grains belonging to the first group is larger than a maximum value of crystal grain sizes of the martensite crystal grains belonging to the second group. A value obtained by dividing a total area of the martensite crystal grains belonging to the first group by the total area of the plurality of martensite crystal grains is more than or equal to 0.3. A value obtained by dividing, by the total area of the plurality of martensite crystal grains, a total area of the martensite crystal grains belonging to the first group except for a martensite crystal grain that has a minimum crystal grain size and that belongs to the first group is less than 0.3. An average grain size of the martensite crystal grains belonging to the first group is less than or equal to 1.5 μm. The quench-hardened layer (11) further includes a plurality of cementite grains. A number density of cementite grains each having a grain size of more than or equal to 1 μm is more than or equal to 0.025/μm2.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for bearing races
C21D 1/18 - Hardening; Quenching with or without subsequent tempering
C21D 1/74 - Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
A ball bearing (100) comprises an inner ring (10), an outer ring (20), and a ball (30). At least one bearing component, from among the inner ring, the outer ring, and the ball, has a contact surface (10da, 20ca, 30a). The bearing components are formed from steel that has undergone nitriding, quenching, and tempering. The steel contains carbon: 0.90 mass% to 1.20 mass% inclusive; silicon: 0.35 mass% to 0.80 mass% inclusive; manganese: 0.80 mass% to 1.20 mass% inclusive; nickel: less than 0.30 mass%; chromium: 0.80 mass% to 1.30 mass% inclusive; and molybdenum: less than 0.10 mass%, with the remainder being iron and unavoidable impurities. The value obtained by dividing the silicon concentration in the steel by the manganese concentration in the steel is less than 0.51.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
Provided is a wheel bearing device that can further reduce weight while increasing rigidity. A wheel bearing device 1 comprises: an outer ring 2 having a double row of outer raceway surfaces 23, 24; an inner member (hub ring 3 and inner ring 4) having a double row of inner raceway surfaces 33, 41 opposing the double row of outer raceway surfaces 23, 24; and double ball rows 5, 6 accommodated between both raceway surfaces of the inner member and the outer ring 2 in a manner allowing rolling. The pitch diameter b of balls 7 in the ball rows 5, 6, and the pitch a between an outer side ball 7 and an inner side ball 7 in the ball rows 5, 6 satisfy the relationship b/a ≥ 2.0.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
B60B 35/02 - Dead axles, i.e. not transmitting torque
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axles; Couplings between axle parts or sections
A ball bearing (100) comprises an inner ring (10), an outer ring (20), and a ball (30). At least one bearing part among the inner ring, the outer ring, and the ball has contact surfaces (10da, 20ca, 30a). The bearing parts are made of steel that has undergone quenching and tempering. The steel contains 0.90-1.20 mass% of carbon, 0.35-0.80 mass% of silicon, 0.80-1.20 mass% of manganese, less than 0.30 mass% of nickel, 0.80-1.30 mass% of chrome, and less than 0.10 mass% of molybdenum, with the balance being iron and unavoidable impurities. The value obtained by dividing the silicon concentration in the steel by the manganese concentration is less than 0.51.
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for bearing races
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A bearing device 1 for a vehicle wheel comprises: an outer member (outer ring 2) having a double row of outer raceway surfaces 2c, 2d on the inner circumference; inner members (hub ring 3 and inner ring 4) having a double row of inner raceway surfaces 3d, 4a facing the double row of the outer raceway surfaces 2c, 2d on the outer circumference; and a plurality of tapered rollers 51 accommodated so as to freely roll between the outer raceway surfaces 2c, 2d and the inner raceway surfaces 3d, 4a, the inner raceway surfaces 3d, 4a being integrally formed with large flange sections 3e, 4b that come into sliding contact with large-diameter-side end surfaces 51a of the tapered rollers 51, wherein the large flange sections 3e, 4b have an arithmetic mean roughness Ra of 0.08 μm or less, and a base oil of grease to be filled in the space surrounding the tapered rollers 51 has a kinematic viscosity at 40°C of 40 to 80 mm2/s.
F16C 33/66 - Special parts or details in view of lubrication
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 169/02 - Mixtures of base-materials and thickeners
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
This crown-shaped retainer comprises an annular portion (9) and a plurality of column portions (10), each column portion (10) being formed in a bifurcated shape having a pair of hook portions (13), and each hook portion (13) being provided with a slit (14) dividing the hook portion (13) in a radial direction, as seen from an axial direction, wherein the slits (14) are formed in positions offset in the radial direction from a pitch circle (P) so as not to overlap the pitch circle (P).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
In this outer ring guide retainer-attached ball bearing, a crown-type resin retainer (4) has: an annular section (11) disposed facing the radial inside of one outer ring groove shoulder section (9); and a plurality of columnar sections (12) having cantilever beam shapes which axially extend from the annular section (11), wherein an outer ring guide surface (17) which slides on one outer ring groove shoulder section (9) is provided on the outer circumference of the annular section (11), and the columnar sections (12) each have an outer ring guide protrusion (15) which slides on the other outer ring groove shoulder section (10).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
Provided is a ball bearing in which even though centrifugal force is applied to the retaining claws, the contact pressure between the retaining claws and the balls can be suppressed, and abnormal noise, abnormal vibration, and increased resistance caused by swinging of the retainer can be suppressed. The ball bearing is characterized by that a retaining claw 32 of a crown-shaped retainer 24 is composed of three portions, from the annular base 30 toward the axially other side, the outer diameter side having a larger centrifugal acceleration than the inner diameter side: a claw base portion 32a that is located on the annular base 30; a claw central portion 32b located on the distal end side of the claw base portion 32a and having an outer diameter smaller than the outer diameter of the claw base portion 32a; and a claw tip portion 32c located on the distal end side of the claw central portion 32b and having an outer diameter smaller than the outer diameter of the claw central portion 32b, the outline of the outer diameter of the claw central portion 32b being configured on the larger diameter side than the center P1 of a ball 23 and a pocket 31.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A spindle device includes: a rotation shaft; a bearing housing having a cylindrical shape extending in a direction of a center axis of the rotation shaft; a bearing attached to an inner peripheral surface of the bearing housing and rotatably supporting the rotation shaft; and a first elastic member. A first flow path and a second flow path are formed inside the bearing housing, each of the first flow path and the second flow path extending in a direction of a center axis of the bearing housing. A first groove is formed in an outer peripheral surface of the bearing housing, the first groove extending in a peripheral direction of the bearing housing, the first groove being connected to the first flow path and the second flow path. The first elastic member closes an opening of the first groove.
Provided is a roller bearing which includes rollers (4, 5) interposed between raceway surfaces of inner and outer rings (2, 3) and having a roller outer circumferential surface, and a DLC film on the roller outer circumferential surface. The DLC film includes a metal layer, an intermediate layer containing the metal and DLC, and a superficial layer containing DLC, in the stated order starting from a side adjacent to a substrate of the rollers (4, 5). The intermediate layer has a bilayered structure of a top layer and a bottom layer. The top layer is a DLC-enriched layer having a greater content of DLC than the bottom layer. The bottom layer is a metal-enriched layer having a greater content of the metal than the top layer. The metal-enriched layer has a layer thickness of between at least 100 nm and no more than 300 nm.
A ground surface comprising numerous ground lines P is provided to an outer peripheral surface 24b of a retainer 24 and to an outer peripheral surface 22b of an inner joint member 22. The ground surface comprises removed portions R formed by removing tip ends of protruding portions Q provided at a boundary of the ground lines P.
F16D 3/20 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
F16D 3/223 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
F16D 3/227 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
The condition monitoring system is for monitoring the conditions of a piece of equipment and includes: a sensor configured to be installed to the piece of equipment; a data instrumentation unit configured to receive a sensing signal from the sensor to acquire instrumentation data from the sensing signal under a predefined instrumentation condition; and a data diagnosis unit configured to receive the instrumentation data from the data instrumentation unit and use the instrumentation data to perform a diagnosis process to diagnose the conditions of the piece of equipment. The data diagnosis unit includes an edge application and an industrial IoT platform. The edge application includes a data collection and analysis module, and the data collection and analysis module is configured to calculate a feature for the instrumentation data from the data instrumentation unit and broadcast the feature to the industrial IoT platform.
Provided is a ball bearing in which, even when a retaining claw of a crown type retainer is deformed by centrifugal force, a strong contact between an inner radial side of a pocket and a ball can be avoided, and centrifugal whirling of the retainer is small and does interfere with rotation. A retainer 24 has an annular portion 30 located on one side in an axial direction of a ball 23, and a plurality of pairs of retaining claws 32 extending from the annular portion 30 toward the other side in the axial direction. A pocket 31 for storing the ball 23 is formed by opposite surfaces of the retainer claws 32 adjacent to each other in a circumferential direction, and one end surface of the annular portion 30 in the axial direction. An inner circumferential surface of the pocket 31 is a composite surface composed of a spherical concave surface 31a that holds the ball 23, and a conical surface 31b. The spherical concave surface 31a is located on the outer radial side, and the conical surface 31b is located on the inner radial side.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
Provided is a seal ring having improved resistance when assembled into an annular groove even if the seal ring is a small-diameter PPS seal ring. This seal ring 1 is a molded article of a polyphenylene sulfide resin composition and has a joint 5 in one location. The seal ring 1 also has, on both sides of a joint-opposing part 5F, thin-walled parts 6 where the radial-direction thickness of the ring is reduced at a ring inner peripheral surface 3, the thin-walled parts having a bending elastic modulus of 10,000 Mpa or less and a bending strain exceeding 2.0%. The radial-direction thickness of the thin-walled parts is 50-70% of the radial-direction thickness of the joint-opposing part 5F.
A cage is asymmetrical to a radially extending straight line extending. Supposing that α is the angle of contact of the rolling element, α is defined as 30°≤α≤45°. The relationship defined in the numerical expression is satisfied, where D is the outer diameter of the outer ring, d is the inner diameter of the inner ring, and Da is the diameter of the rolling element. With center axes of the whole bearing in an axial direction and of the cage in the axial direction overlapping each other, at least one of the following relationships is satisfied;
A cage is asymmetrical to a radially extending straight line extending. Supposing that α is the angle of contact of the rolling element, α is defined as 30°≤α≤45°. The relationship defined in the numerical expression is satisfied, where D is the outer diameter of the outer ring, d is the inner diameter of the inner ring, and Da is the diameter of the rolling element. With center axes of the whole bearing in an axial direction and of the cage in the axial direction overlapping each other, at least one of the following relationships is satisfied;
A/Da≤0.020 (2), and
A cage is asymmetrical to a radially extending straight line extending. Supposing that α is the angle of contact of the rolling element, α is defined as 30°≤α≤45°. The relationship defined in the numerical expression is satisfied, where D is the outer diameter of the outer ring, d is the inner diameter of the inner ring, and Da is the diameter of the rolling element. With center axes of the whole bearing in an axial direction and of the cage in the axial direction overlapping each other, at least one of the following relationships is satisfied;
A/Da≤0.020 (2), and
2A/PCD≤0.010 (3),
A cage is asymmetrical to a radially extending straight line extending. Supposing that α is the angle of contact of the rolling element, α is defined as 30°≤α≤45°. The relationship defined in the numerical expression is satisfied, where D is the outer diameter of the outer ring, d is the inner diameter of the inner ring, and Da is the diameter of the rolling element. With center axes of the whole bearing in an axial direction and of the cage in the axial direction overlapping each other, at least one of the following relationships is satisfied;
A/Da≤0.020 (2), and
2A/PCD≤0.010 (3),
where A is the smallest dimension value of a clearance in a radial direction between surfaces of a pocket of the cage facing the rolling element and of this rolling element, and PCD is the pitch diameter of each rolling element.
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
A sliding-type constant velocity universal joint 1 comprises: an outer joint member 2 having a plurality of linear track grooves 7 formed therein; an inner joint member 3 having a plurality of linear track grooves 9 formed therein; a plurality of torque transmission balls 4; and a cage 5 for storing each torque transmission ball 4 in a pocket 5a, wherein the center of curvature O1, Oc1 of a spherical outer peripheral surface 11 of the cage 5 and the center of curvature O2, Oc2 of a spherical inner peripheral surface 12 are offset to the opposite side in the axial direction with respect to a joint center O. The sliding-type constant velocity universal joint 1 is characterized in that a range of from 10 mm on a depth side to 10 mm on an opening side with respect to a center C of a slide range in a joint axis direction of the track groove 7 of the outer joint member 2 is defined as a central range W, a portion 7a at which a pitch circle diameter (PCD) of the track groove 7 of the outer joint member 2 is smallest is formed in the central range W, the minimum value of a PCD clearance Δ of the track grooves 7, 9 in the central range W is set to from 0.010 mm to 0.100 mm, and a mutual error of PCD of the track groove 7 of the outer joint member 2 in the central range W is not greater than 0.150 mm.
F16D 3/227 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
This fluid dynamic pressure bearing lubricant oil composition is to be used in a fluid dynamic pressure bearing 8 in which radial dynamic pressure generation units A1, A2 are provided to the inner circumferential surface 8a of a porous body, and has the following compositional makeup. Specifically, a base oil having a kinematic viscosity of more than 30 mm2/s but not more than 80 mm2/s at 40°C is used as the base oil of the lubricant oil composition. In addition, the compositional makeup of the lubricant oil composition is adjusted such that the kinematic viscosity of the lubricant oil composition at 40°C is 90-140 mm2.
C10M 107/02 - Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
H02K 5/167 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
NATIONAL UNIVERSITY CORPORATION HAMAMATSU UNIVERSITY SCHOOL OF MEDICINE (Japan)
NTN Corporation (Japan)
Inventor
Hariyama, Takahiko
Kawasaki, Hideya
Ohba, Hiroaki
Abstract
An immunochromatography assay kit includes a specimen dropping portion to which a specimen is dropped, a conjugate portion to which a labeled antibody having a property of binding to a detection target in the specimen is immobilized, and a plurality of detection portions to which a capture antibody having a property of binding to the detection target is immobilized. The specimen dropping portion, the conjugate portion, and the plurality of detection portions are formed on a porous member. An outer shape of each detection portion is a dot shape.
A detecting unit (45) acquires detected data relating to a wind-powered electricity generating device (20). A control device (100) generates abnormality information indicating an abnormality or a pre-indication of an abnormality of the wind-powered electricity generating device (20), on the basis of the detected data. The control device (100) transmits the abnormality information to a user terminal (50).
A detection unit (45) acquires detected data of a wind power generation device (20). A control device (100) generates maintenance information for the wind power generation device (20) on the basis of the detected data. The control device (100) transmits the maintenance information to a maintenance terminal (72).
A bearing apparatus includes a housing where a main spindle is accommodated, a bearing including an inner ring and an outer ring, the bearing supporting the main spindle rotatably with respect to the housing, a retaining lid fitted to an inside surface of the housing while the retaining lid is in contact with an axial end surface of the housing and an axial end surface of the outer ring, and a communication module arranged in a region opposed to the retaining lid with the bearing being interposed, the communication module wirelessly communicating over electromagnetic waves. In a portion of the retaining lid in contact with the housing, a non-metallic layer composed of ceramic which is a non-metallic material is provided.
A fluid dynamic bearing (bearing sleeve 8) includes a first dynamic pressure generating part 11 and a second dynamic pressure generating part 12 that are provided in an inner peripheral surface 8a so as to be spaced apart from each other in an axial direction. The respective dynamic pressure generating parts 11 and 12 have a plurality of dynamic pressure generating grooves 11a, 11b, 12a, and 12b arranged in a herringbone shape and having different tilt directions. The first dynamic pressure generating part 11 has an annular hill part 11c between the axial directions of the plurality of dynamic pressure generating grooves 11a and 11b having different tilt directions. The plurality of dynamic pressure generating grooves 12a and 12b, having different tilt directions, of the second dynamic pressure generating part 12 are continuous in the axial direction.
This deep groove ball bearing (1) comprises: an inner race (2), which is an inner member; an outer race (3), which is an outer member; a plurality of balls (4) interposed between these inner and outer races (2, 3); and a waveform retainer 5 that retains these balls (4). A band width (h), which is the radial-direction dimension of the waveform retainer (5), is set to 30-44% of a diameter (BD) of the balls (4). Limiting the upper limit value of the band width (h) to 44% or lower of the ball diameter has the effect of allowing grease to flow easily and the effect of decreasing the stirring force of the grease, thereby inhibiting a temperature increase of the deep groove ball bearing (1) during a rapid acceleration rotation. Since the lower limit value of the band width (h) is set to at least 30% of the ball diameter, the movement of the balls (4) stabilizes, and it is possible to satisfy the required retainer strength.
F16C 33/42 - Ball cages made from wire or sheet-metal strips
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A rolling member is formed of quenched steel having a contact surface. The rolling member includes a superficial part in a region up to a depth of 20 μm from the contact surface. Steel contains greater than or equal to 0.70 mass % and less than or equal to 1.10 mass % of carbon, greater than or equal to 0.15 mass % and less than or equal to 0.35 mass % of silicon, greater than or equal to 0.30 mass % and less than or equal to 0.60 mass % of manganese, greater than or equal to 1.30 mass % and less than or equal to 1.60 mass % of chromium, greater than or equal to 0.01 mass % and less than or equal to 0.50 mass % of molybdenum, and greater than or equal to 0.01 mass % and less than or equal to 0.50 mass % of vanadium, and the remainder of iron and inevitable impurities.
A power-generating unit (1) comprises: a natural energy generation device including solar panels (4a, 4b); and a power supply device (6) for supplying power generated by the natural energy generation device to electrical equipment (5). The solar panels include a first solar panel (4a) provided on a part of a structure and a second solar panel (4b) provided on another part of the structure. The power supply device (6) has a switch (11) capable of switching between a first switching mode in which use of the first and second solar panels (4a, 4b) is possible and a second switching mode in which use of either the first or second solar panel (4a, 4b) is possible.
An N-phase electric machine includes a movable member mounted so as to move with respect to a fixed member, a system for determining at least one item of information relating to the movement of the movable member and an electric power supply system which is managed by the item of information, the determination system comprising an encoder having a magnetic track, the fixed member having an armature equipped with at least one conductive coil per phase, the coils being magnetically coupled to the track, the armature having pads around which a coil is respectively arranged, each of the pads having teeth spaced apart by hollows so as to direct the magnetic flux between the coil and the encoder so that the supply of electric power to the coils causes the encoder to move and/or the movement of the encoder causes electric power to be supplied to the coils.
An electric oil pump 1 includes: a pump unit 2 that generates hydraulic pressure; a motor unit 3 that drives the pump unit; a substrate 4 on which a control circuit for controlling the motor unit 3 is formed by a plurality of electronic components 41; and a housing 5 equipped with a pump accommodation unit 53 that houses the pump unit, a motor accommodation unit 54 that houses the motor unit, and a substrate accommodation unit 55 that houses the substrate. The substrate 4 is disposed along the tangential direction of a circle about the axis of the motor unit 3. The pump accommodation unit 53, the motor accommodation unit 54, and the substrate accommodation unit 55 are integrally formed.
This grease composition for a constant-velocity joint contains (a) base oil having a kinematic viscosity of 16.0 mm2/s or higher at 100°C, and a viscosity index of 90 or higher, (b) a diurea-based thickener, e.g., aliphatic diurea, (c) 0.2-2.0 mass% of zinc dialkyldithiophosphate, (d) 0.5-2.0 mass% of oil-insoluble molybdenum dialkyldithiocarbamate, (e) 0.5-3.0 mass% of oil-soluble molybdenum dialkyldithiocarbamate, (f) 1.0-4.0 mass% of zinc dialkyldithiocarbamate, and (g) 0.1-1.5 mass% of benzothiazolethione or a derivative thereof, wherein (f):(g) ranges from 8:1 to 3:1 (mass ratio).
C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
C10N 50/10 - Form in which the lubricant is applied to the material being lubricated greasy
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 135/18 - Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
C10M 135/36 - Heterocyclic sulfur, selenium or tellurium compounds the ring containing sulfur and carbon with nitrogen or oxygen
F16D 3/20 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
75.
RIGID-FILM-COATED OBJECT, MACHINE COMPONENT, AND BEARING
Provided are: a rigid-film-coated object having hydrogen embrittlement resistance and wear resistance and having excellent unsusceptibility to separation; and a machine component and a bearing which include the rigid-film-coated object. The rigid-film-coated object 1 comprises a base 2 and a rigid film 3 for inhibiting hydrogen atoms from infiltrating and diffusing formed on a surface of the base 2, wherein the ratio of the Vickers hardness of the rigid film 3 to the Vickers hardness of the base 2 is 0.90-1.20, the Vickers hardness of the base 2 and the Vickers hardness of the rigid film 3 are 500-1,000 Hv each, and the rigid film 3 is an Ni coating film.
C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
Provided is a hub unit (1) with a steering function. The hub unit (1) includes a hub bearing assembly (3) including a hub bearing (21) configured to rotatably support a wheel (13) of a vehicle (11), a unit support member (5) configured to be coupled to a suspension system (33) and supporting the hub bearing assembly (3), and a rotation-permitting support member (7) rotatably supporting the hub bearing assembly (3), about a turning axis (A) that extends in a vertical direction, on the unit support member (5). The hub bearing (21) is configured to be coupled with a driveshaft (53) that transmits drive power from a drive source of the vehicle (11).
B62D 7/09 - Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle characterised by means varying the ratio between the steering angles of the steered wheels
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axles; Couplings between axle parts or sections
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
77.
STATE-MONITORING DEVICE AND STATE-MONITORING METHOD
A diagnosis-parameter calculation unit calculates a diagnosis parameter in a second time period, based on sensing data obtained in the second time period. A characteristic-data input unit obtains characteristic data representing characteristics of a monitoring target device in a first time period and the second time period, from a logger included in the monitoring target device. Using the characteristic data in the second time period and the diagnosis parameter in the second time period, a regression-model generation unit) generates a regression model representing a relationship between the characteristic data and the diagnosis parameter. Using the regression model, a diagnosis-parameter estimation unit estimates a diagnosis parameter in the first time period, which corresponds to the characteristic data in the first time period. Using the diagnosis parameters in the first time period and the second time period, the diagnosis-criteria setting unit sets diagnosis criteria.
A hub unit with a steering function includes: a hub bearing that rotatably supports a wheel; a cylindrical turning shaft section extending from an outer ring thereabove and thereunder with the outer ring being located at an outer peripheral surface of an outer race of the hub bearing; a steering actuator that causes the hub bearing to rotate about an axis of the turning shaft section; a unit support member that rotatably supports the hub bearing about the axis on a vehicle body; and an arm section projecting from the outer ring rearward of a vehicle, with the actuator being coupled to the arm section. The actuator includes: an extensible and retractable assembly capable of providing extension or retraction in a direction perpendicular to the axis; and the extensible and retractable assembly is coupled to the arm section through a joint assembly providing two or more directions of freedom.
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B62D 7/08 - Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle
A condition monitoring system includes a data measurement device, a data analyzer, and a diagnosis device. The data measurement device obtains, according to a measurement condition provided, measurement data from a detection signal of a sensor. The data analyzer performs an analysis process on the measurement data obtained by the data measurement device. The diagnosis device performs a diagnosis process of diagnosing a condition of a facility based on an analysis result obtained through the analysis process. The data analyzer sets the measurement condition and an analysis condition for the analysis process based on a time required for the analysis process and the diagnosis process.
Provided is a steering system which includes a hub unit with a steering function and a control device. A steering actuator includes a motor and a linear drive mechanism configured to convert a rotational output from the motor to a linear motion. An angle sensor is configured to sense a rotational angle of the motor and capable of generating two or more angle sensor values. A position sensor is configured to sense a position of the linear drive mechanism which represents an amount of displacement of an output rod and capable of outputting the same in the form of a position sensor value. The control device is configured to compare each of the angle sensor values sensed and generated by the angle sensor against the position sensor value sensed by and output from the position sensor to determine whether any one of the angle sensor values is incorrect.
In a state in which the joint has a regular operating angle and the axial line of an inner ring 12 is not inclined with respect to the axial line of a leg shaft 32, when a radius of curvature r and a minor axis-major axis ratio b/a at which the contact area between an inner ring inner circumferential surface 12a and a leg shaft outer circumferential surface is minimized are each given as a reference value, the minor axis-major axis ratio b/a is set to the corresponding reference value, and the radius of curvature r is made smaller than the corresponding reference value. In addition, the carbon content in the core part of a tripod member 3 is set to 0.23 to 0.44%, and a hardened layer is formed through carburizing and quenching on the surface of each leg shaft 32 of the tripod member 3. When a Ts torque is defined as 0.3 times a minimum static torsional torque that causes torsional breaking of a shaft 8 coupled to the tripod member 3, the effective hardened layer depth of a hardened layer 16 with a hardness limit of 600 HV is set to be larger than or equal to a shearing stress depth under application of the Ts torque.
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
F16D 3/20 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
F16C 33/42 - Ball cages made from wire or sheet-metal strips
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
BEARING CAP FOR BEARING DEVICE FOR VEHICLE WHEEL WITH ROTATIONAL SPEED DETECTION DEVICE, AND BEARING DEVICE FOR VEHICLE WHEEL WITH ROTATIONAL SPEED DETECTION DEVICE
In a bearing cap in which a sensor support part is formed on a bottom surface section of a cap body and in which an insertion hole for a rotational speed sensor is formed in the sensor support part, a recess that accommodates a tip portion of the rotational speed sensor is formed in the portion of the bottom surface section where the sensor support part is formed. The sensor support part includes a first wall section and a second wall section that are disposed, facing each other across a virtual line L passing through a center axis G1 of the bottom surface section and a center axis G2 of the insertion hole, and that are formed along the circumferential edge of the recess. Protrusions protruding from the bottom surface section are continuously provided on the outer circumferential surfaces of the first wall section and the second wall section.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
A one-way clutch includes a C-shaped spring having one end thereof engaged by the inner ring and the other end abutting a roller at one end of a row of rollers that abut each other, thereby engaging the rollers with the outer ring and the inner ring. The inner ring has a radius at the engaging end of the cam surface opposed to the roller at the other end of the row of the rollers larger than its radii at the engaging ends of the cam surfaces opposed to the other rollers of the same row.
F16D 41/067 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
This chain tensioner comprises: a cylinder (9); a plunger (10); a return spring (29) that biases the plunger (10) in a direction of causing the plunger (10) to project from one end of the cylinder (9); a pressure chamber (18) formed in the cylinder (9); a check valve (19) that allows only the flow of oil from inside the plunger (10) to the pressure chamber (18); a leak gap (25) that causes hydraulic oil to leak from the pressure chamber (18); an oil feed passage (28) that introduces oil to inside the cylinder (9) from outside; a communication path (31) formed in the plunger (10) so as to communicate between the leak gap (25) and the inside of the plunger (10); and an air vent structure (14) that discharges air (a) in the plunger (10) to the outside. The air vent structure (14) is provided by being offset upward from the axial center of the plunger (10).
To obtain a second assembly, first, an outer ring and first roller cassette of a first assembly are supported by a first support tool and a hub wheel of the first assembly is supported by a second support tool, and then the second support tool is moved upward, so that a roller support surface of the second support tool is introduced to the inside of the first roller cassette in the radial direction. Then, after a first seal member is attached to the outer ring, the second support tool is moved downward in accordance with the re-insertion of a cylindrical portion of the hub wheel into the inner periphery of the outer ring, so that a first inner raceway surface is inside of the first roller cassette in the radial direction while the roller support surface is ejected to the lower side of the first roller cassette.
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
A magnetic core material contains an Fe-based soft magnetic powder in which an inorganic insulating film 4b is formed on a surface of an Fe-based soft magnetic particle 4a, and an epoxy resin 4c containing a curing agent. The Fe-based soft magnetic particle 4a is formed of a pure iron powder or a low-alloy steel powder. A content of the epoxy resin containing the curing agent is 2 to 5 mass %. The epoxy resin is a mixture of a bisphenol A-type epoxy resin and a novolac-type epoxy resin.
H01F 1/26 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
A bearing device comprises: a rolling bearing (30) having a rotating ring (32), a fixed ring (31), and rolling elements (33); a preload-applying member (40); and a sensor unit (60). The rotating ring has a rotating ring raceway surface (32ca) extending along the circumferential direction. The fixed ring has a fixed ring raceway surface (31da) that extends along the circumferential direction and is opposite the rotating ring raceway surface with a gap therebetween in the radial direction. Rolling elements are disposed between the rotating ring raceway surface and the fixed ring raceway surface. The preload-applying member applies a preload to the rolling bearing along the axial direction. The sensor unit has a sensor (63) that is removably attached to either the rotating ring or the preload-applying member, and that senses the rotation state of the rotating ring.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
To provide a grease-sealed bearing that is superior in fretting wear resistance and sealing performance when used under an oscillation condition with acceleration and deceleration such as a condition used in a robot joint. A grease-sealed bearing 1 includes an inner ring 2 and an outer ring 3 that are raceway rings, a plurality of rolling elements 4 interposed between the inner ring 2 and the outer ring 3, and a grease composition 7 sealed around the rolling elements 4. The bearing oscillates such that a bearing rotational direction changes while accelerating and decelerating. The grease composition contains a base oil and a thickener. The worked penetration of the grease composition is 310 or more. The thickener is a calcium sulfonate complex soap.
C10M 115/10 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing sulfur
F16C 33/66 - Special parts or details in view of lubrication
C10M 169/02 - Mixtures of base-materials and thickeners
A bearing apparatus includes a bearing that rotatably supports a main spindle around a rotation axis, a spacer including an inner-ring spacer adjacent to an inner ring of the bearing and an outer-ring spacer adjacent to an outer ring, and a heat flux sensor provided in an inside surface of the outer-ring spacer. A distance in a direction along the rotation axis from a center of the bearing to a center of the heat flux sensor is longer than 0.5 time and shorter than one time of a dimension of the bearing in the direction along the rotation axis.
Provided is a clutch unit in which an output-side outer ring member is attached to a base plate without welding. A clutch unit (100) includes an output-side clutch (60) and a housing (11) that accommodates the output-side clutch (60). The output-side clutch (60) includes an output-side outer ring member (62). The output-side outer ring member (62) and the housing (11) have an engagement protrusion (62s) and an engagement groove (11s) that engage with each other to restrict relative rotation therebetween.
F16D 41/10 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
In this ball screw 1, balls 7 circulate and move along a series of ball passages having: a spiral main passage 13 which is formed by a male screw groove 11 of a screw shaft 2 and a female screw groove 12 of a nut body 4 in accordance with the relative rotation of the screw shaft 2 and a nut 3; a return passage 14 axially passing through the nut body 4 outside the main passage 13 in a radial direction; a first connection path 15 which connects the main passage 13 to one end of the return passage 14; and a second connection path which connects the main passage 13 to the other end of the return passage, wherein a first end cap 5 which forms the first connection path 15 and a second end cap 6 which forms the second connection path 16 are disposed respectively at positions overlapping the female screw groove 12 in the axial direction.
A snap ring 14 has a cut surface A obtained by shearing. The cut surface A has a shear surface A2 that is provided in a region on the front surface 14d side and a fracture surface A3 that is provided in a region on the back surface 14e side. The front surface 14d of the snap ring14 faces a plurality of needle rollers 13.
F16B 21/18 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding it; Stud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft - Details
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
This bearing device (1) comprises a bearing (2) and a holding member (12). The holding member (12) is fixed to either an outer ring (3) or an inner ring (4). A circuit board (13) is fixed to a surface (12f) of a side plate section (12A) in an axial direction. At least one gas sensor (SSR) for detecting the state of the bearing (2) and a wireless communication circuit (18) which wirelessly transmits an output of the gas sensor (SSR) to the outside are mounted on the circuit board (130).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 19/52 - Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
A bearing device (100) comprises: a rolling bearing (10) having an inner ring (11), an outer ring (12), and a rolling body (13); and a generator (20) that generates electricity along with rotation of the inner ring relative to the outer ring. The inner ring has an inner-ring outer diametrical surface (11d). The outer ring has an outer-ring inner diametrical surface (12c). The outer ring is disposed on the outside of the inner ring in a radial direction such that the outer-ring inner diametrical surface faces the inner-ring outer diametrical surface. The rolling body is disposed between the inner-ring outer diametrical surface and the outer-ring inner diametrical surface. The generator has a magnetic ring (30), and a stator (40). The magnetic ring has a multi-pole magnet (32) magnetized to have N-poles and S-poles alternately in a circumferential direction, and is attached to one of the inner ring and the outer ring.
In the present invention, an escape part 36, at which the tooth height of a female spline 34 is reduced, is provided to the inner circumference of the one-side end of a tripod member 3 in the axial direction. B/A>0.28 and C/D>0.23 are set, where: A represents the axial-direction distance from the one-side end surface of the tripod member 3 in the axial direction to a plane R including the axial center of each leg shaft 32; B represents the axial-direction distance from the one-side end surface of the tripod member 3 in the axial direction to the deep-side end P of the escape part 36; C represents the thickness of the tripod member 3 in a radial direction at the deep-side end P of the escape part 36 on an axial-direction cross-section that includes a joint axial center O and an intermediate part 33 and that extends in the tangential direction of a circle about the axis of a corresponding one of the leg shafts 32; and D represents the diameter of a tooth bottom 34a of the female spline 34.
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
Provided is a ball bearing in which a strong contact between an inner radial surface of a pocket and a ball can be avoided to reduce rotational torque even when a retaining claw of a crown type cage is deformed by centrifugal force. The ball bearing comprises: an annular portion 30 that has pockets 31 for retaining a plurality of balls 23 at equal intervals in the circumferential direction, and is located on one side in an axial direction of the ball 23; and a plurality of pairs of retaining claws 32 extending from the annular portion 30 toward the other side in the axial direction. The pocket 31 is formed by opposite surfaces of the retainer claws 32 adjacent to each other in the circumferential direction, and one end surface of the annular portion 30 in the axial direction. The pocket 31 is in the shape of a spherical concave surface that holds the ball 23. A recess 33 is formed in an inner radial portion of a bottom surface of the pocket 31.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 33/66 - Special parts or details in view of lubrication
Provided is a crown-shaped cage entirely made of a resin material, in which a diameter D of a steel ball (4) stored in a pocket (9) is 13 to 18 mm, a thickness t from the bottom of the pocket (9) to an end surface of an annular part (5) on another side thereof in an axial direction is 10 to 20% of the steel ball diameter D, and an axial length HB of claws (8a, 8b) of a horn part (6) is 60 to 80% of the steel ball diameter D. When the tensile strength of the resin material is σ, a cross-sectional area A of a portion between adjacent pockets (9) in a circumferential direction is set within a range given by the following expression. A > (511D – 4027) / σ
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
This machine component (10) has surfaces, and is formed from steel that has undergone quenching and tempering. The machine component is provided with a nitrided layer (11) formed on the surfaces (10a, 10b, 10c, 10d). The steel contains 0.95 to 1.10 mass percent carbon, less than 0.30 mass percent silicon, less than 0.50 mass percent manganese, less than 0.0080 mass percent sulfur, and 1.3 to 1.6 mass percent chromium, with the remainder being iron and unavoidable impurities. The average nitrogen concentration on the surfaces is 0.10 mass percent or greater. The hardness of the surfaces is 850 Hv or greater. The amount of retained austenite on the surfaces is 20 volume percent or less.
The present invention is a load sensor that comprises a single sensor member (1), a displacement sensor 2, and a sensor target (3). In a vertical cross-section that runs along a center axis (C) of the sensor member (1) that is parallel to the application direction (F) of a load, the sensor member (1) has a space (S) at which all of 3 and at least a portion of 1 of the (4) directions that are the forward and backward directions that are parallel to the center axis (C) and the forward and backward directions that are orthogonal to the center axis (C) are enclosed by the sensor member (1).
G01L 5/22 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
