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JP2019194499A |
To provide means capable of keeping a preload within a proper range.A manufacturing method for a hub unit bearing comprises: a caulking step for performing caulking work of an axial end part of a hub wheel (11) while rotationally driving...
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JP2019190556A |
To provide a ball screw device which can reduce a pressing force necessary for imparting a sufficient preload to a double-row bearing device irrespective of a dimension of the double-row bearing device, and the double-row bearing device....
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JP2019190637A |
To attain structure capable of adjusting preload imparted to a rolling body, in a structure with which an outward member having double-row outer ring raceways on an inner peripheral surface is formed integrally.An outer member 4 has doub...
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JP2019183916A |
To provide a bearing unit which can easily perform caulking by a weak force at the assembling of an inner ring, a ball screw device having the bearing unit, and a steering device having the ball screw device.A bearing unit 50 comprises a...
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JP6591751B2 |
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JP2019168080A |
To provide a sliding bearing capable of improving hardness of a sliding surface while maintaining toughness of the sliding surface.A sliding bearing is made of pure titanium or a titanium alloy. The sliding bearing includes: a diffusion ...
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JP6583140B2 |
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JP6582377B2 |
To provide a bearing unit for a dental air turbine capable of reducing the size of a rolling bearing and having high moment rigidity of a rotational shaft, and a dental air turbine.A dental air turbine 10 includes a turbine blade 12, a r...
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JP6585682B2 |
A rotor unit including a rotating shaft extended in an axial direction along an axial line, a pair of bearings rotatably supporting the rotating shaft, and a pair of spacers arranged adjacent to each other between the pair of bearings an...
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JP6570538B2 |
The invention relates to a rotary-table bearing assembly, including: a rotary-table bearing, which has an inner ring, an outer ring, and rolling elements arranged in one or more rows, which roll on the inner ring and on the outer ring; a...
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JP2019143762A |
To provide a ball screw device which can impart a necessary preload to a bearing device, and a steering device.A double-row bearing device 10 comprises: an outer ring 120 having a first outer ring raceway 121 in which a plurality of firs...
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JP2019143693A |
To provide a revolving shaft supporting structure capable of stably supporting both ends of the revolving shaft even if the revolving shaft extends or contract with respect to a housing due to temperature variation and provide a sewing d...
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JP6561205B2 |
[Problem] To provide a slider and a slide device having improved ease of assembly. [Solution] A slider 100 is provided with a first support member 110, a second support member 120, rollers 150, and a plurality of spherical rolling bodies...
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JP6551634B1 |
The hub unit bearing is manufactured by a caulking process in which the outer ring (2) is rotationally driven with respect to the hub (3) and the axial end of the hub wheel (11) is caulked, and after the caulking process is completed. Wh...
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JP2019520223A |
To provide a rotary table for machining a work, which can perform a function of a rotary table capable of rotating while supporting a work and a function of an index table capable of fixing the rotation at a constant angle. A main body p...
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JP6540281B2 |
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JP2019107989A |
To provide a steering unit making it possible to readily secure an inner race while inhibiting deformation of the inner race of a bearing.A steering unit includes a rack shaft, a ball screw nut 31, a housing 16, and a bearing 50 that is ...
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JP2019104326A |
To provide a steering device capable of securing a smooth rotation of multiple balls that form a ball screw structure, thereby avoiding an adverse effect to a steering feeling of a steering wheel.A steering device 1 includes: a rack shaf...
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JP6529988B2 |
A device for securing a clamping element against unintentional release includes a disk-shaped structure penetrated in an axial manner by a bore hole. A driving profile is defined by the bore hole. The disk-shaped structure is positionabl...
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JP6529211B2 |
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JP6524596B2 |
A bearing variable preload system utilizing gaps between strokes for preload adjustment and elastic deformation of a sealing member, according to the present invention, comprises: a housing; bearings provided to the housing; a spindle co...
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JP6522148B2 |
A motor includes a frame including a first bearing holder, a stator, a first bearing held in the first bearing holder, a rotor rotatably supported by the first bearing, and a preload member generating a preload in a direction of an axis ...
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JP6522031B2 |
A slotted tube shaft carrying a blade head of a blade twister rotates in a slotted, stationary bearing housing for an endless band-shaped cutting or sawing element supported by two axially spaced subassemblies each having C-shaped, axial...
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JP2019078958A |
To provide a bearing energization structure which can impart a necessary energization force to a shaft member held to a bearing member.A bearing energization structure has a first roller including at least one or more rotating shafts 38a...
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JP6517041B2 |
The present invention provides a speed reduction device, wherein the eccentricity between the speed reduction device and a driven machine is inhibited. The speed reduction device comprises a housing (12); an output shaft (14); a first be...
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JP6507965B2 |
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JP6510960B2 |
A mast spacer (20A) provided between a mast bearing and a mast nut in a main shaft of a helicopter, comprises a cylindrical spacer body (21). A first end of the mast spacer (20A) is a bearing contact end (22) which is fittable to an inne...
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JP2019065981A |
To provide a manufacturing method of a spherical slide bearing which can reduce a manufacturing cost.This manufacturing method of a spherical slide bearing comprises: a process for preparing a spherical slide bearing outer ring member ha...
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JP6504849B2 |
An actuation system to control clearance in a turbomachine including a shaft bearing including at least one axially displaceable thrust bearing. The axially displaceable thrust bearing configured to axially displace a rotating component ...
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JP2019058977A |
To provide a main spindle device capable of attenuating effectively vibration of a main spindle; and to provide a machine tool.A machine tool includes a main spindle device 5. The main spindle device 5 includes a main spindle 20, a plura...
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JP2019056459A |
To enhance support rigidity with respect to components of a speed reducer in an electric actuator equipped with the speed reducer having an eccentric rotor.An electric actuator 1 includes an electric motor 4, a stationary member 6, a spe...
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JP2019044936A |
To provide a structure capable of improving backlash characteristics and suitable for downsizing in an eccentric oscillation type transmission.An eccentric oscillation type transmission includes an eccentric body 20, an external gear 30 ...
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JP6481382B2 |
Provided is an electric motor capable of stabilizing a preload applied to a bearing by an annular spring and effectively retarding degradation of the annular spring. The electric motor includes a motor shaft (11), a rotor (12), a stator ...
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JP2019031224A |
To provide a rotation support mechanism which inhibits starting torque of a bearing from becoming excessively large.A rotation support mechanism 1 includes: a cylindrical metal collar 40 held at a holding part 22c of a worm shaft recepti...
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JP2019027522A |
To provide a bearing assembly which achieves stable rotation under a high temperature environment.A bearing assembly 10 has: a bearing holder 11 formed by a cylindrical member; rolling bearings 12, 13 which are press-fitted into an inner...
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JP2019027559A |
To provide a bearing which is appropriate for a rack bush, capable of reducing influences to be exerted upon a feeling of steering operation.A rack bush 1 is accommodated in a cylindrical housing 4 and configured to support a load applie...
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JP2019027552A |
To provide a rotational shaft reinforcement structure capable of improving durability of a rotational shaft without increasing the size of a device.A rotational shaft reinforcement structure 60 is applied to reinforce an output shaft 13 ...
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JP6472375B2 |
An inner-rotor motor including: an armature assembly including a rotating shaft, an armature unit coupled to the rotating shaft and a pressing unit; a frame assembly including a frame housing the armature unit, a first bearing unit locat...
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JP6469379B2 |
An assembly comprises a rotating shaft (104, 114) supported with respect to a stationary housing (105, 115) by at least one active magnetic bearing presenting a mean radial air gap and at least one auxiliary bearing (118) comprising firs...
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JP6468009B2 |
A case is formed of aluminum. A rotation axis has one end affixed with an input rotor element and is rotational with a rotor. A first bearing is equipped to the case and is located between the input rotor element and the rotor to rotatio...
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JP2019019952A |
To provide a slide bearing which can reduce the generation of noise caused by the backlash of a shaft member while suppressing torque generated by slide movement sliding with the shaft member.A rack bush 1 is accommodated in a cylindrica...
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JP6464264B2 |
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JP6463729B2 |
In a rotary machine bearing including an inner ring, an outer ring, and rolling elements between them, one of the inner and outer rings includes first and second half-rings suitable for being clamped in the axial direction between a thru...
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JP6452274B2 |
A bearing device which comprises an internal ring and an external ring, which are each provided with a bearing path for rolling elements which are arranged between the rings in contact with the bearing paths. At least one of the two ring...
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JP6447017B2 |
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JP2018204681A |
To provide a double row four-point contact ball bearing capable of suppressing deformation of an outer ring with dimension increase suppressed.A double row four-point contact ball bearing 100 comprises an outer ring 102, an inner ring 10...
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JP6437950B2 |
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JP2018173173A |
To provide an in-wheel motor driving device excellent in silence and durability.An in-wheel motor driving device 21 comprises a casing 22 holding a motor part A, a deceleration part B, and a wheel bearing part C. The motor part A compris...
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JP6420411B1 |
To fix a bearing more firmly. A frame bush portion for accommodating a stator and a bearing for rotatably supporting a shaft with respect to the frame bush portion are provided, and surfaces on an inner surface of the bearing and an inne...
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JP2018168898A |
To provide an electric actuator which can achieve improvement in positioning accuracy in a linear motion direction and miniaturization.In an electric actuator, a drive part having an electric motor and a motion conversion mechanism part ...
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