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JP2021025634A |
To provide a rolling bearing which can reduce an installation space of an elastic body for imparting a preload, its manufacturing method and a bearing structure.In a rolling bearing 1 having an inner ring 2, an outer ring 3 and a plurali...
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JP6823902B2 |
To provide a slide bearing which can elongate a life by improving the durability of an elastic body.A rack bush 1 comprises: a cylindrical bush main body 2 which is accommodated in a cylindrical housing, and supports a load applied to a ...
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JP6816063B2 |
A preload judgement device includes: a preload obtaining unit configured to obtain a preload that acts on a bearing that pivotally supports a drive shaft of a motor; and a notification unit configured to give notification that the preloa...
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JP6818343B2 |
[Problem] To provide a double-row ball bearing which can be installed requiring a reduced space and which has high resistance to a load. [Solution] An inner race 3 is split into two pieces consisting of a first inner race 31 and a second...
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JP6814378B1 |
To provide a bearing capable of exhibiting high bearing performance and improving the service life. A bearing 1 includes an outer ring 2, an inner ring 3, and a plurality of first rolling elements 4. The first rolling element 4 has a mai...
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JP6809966B2 |
To provide an internal combustion engine that further improve support rigidity for a crankshaft and can effectively suppress crank striking sound.An internal combustion engine 23 includes: a crankcase 24 for sectioning a crank chamber 36...
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JP6806827B2 |
Provided is a preload inspection method for a wheel bearing device enabling more accurate checking of preload. The invention comprises: a press-fitting step S02 for press-fitting an inner ring 4 to a small-diameter stepped part 3a; a fir...
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JP6783719B2 |
To reduce the effect of a steering operation on feeling. A rack bush (1) comprises: a bush body (2) that is accommodated in a cylindrical housing (4), supports a load exerted on a rack bar (5) while allowing the rack bar (5) to move in t...
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JP6781625B2 |
A rotary machine of the present invention is provided with: a bearing including an inner ring secured to an outer peripheral surface of a rotating element, an outer ring disposed outside the inner ring, and a plurality of rolling element...
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JP6776996B2 |
To provide an actuator which achieves improvement of workpiece positioning accuracy regardless of a position of a centroid of the workpiece and can transmit rotary motion and linear motion.An actuator 1 includes a housing 90, a first rot...
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JP2020172258A |
To generate preload force necessary for a correct function, while guaranteeing bearing and alignment of a shaft being the base with high precision.A shaft arrangement (30) for a work device (1), a vehicle (1'), a bicycle, an electric bic...
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JP2020165442A |
To provide a spindle device that is excellent in high-speed rotation and vibration accuracy of a rotational shaft although a bearing for supporting the rotational shaft for tool connection is made compact.Bearings 3, 4 that support a rot...
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JP2020529361A |
To propose a wheel suspension portion in which a bearing system used for supporting a bell crank in a chassis lever stands out in a simple structure and is inexpensive. A chassis control arm 3, a first tie rod, a second tie rod, a bell c...
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JP2020153276A |
To provide a centrifugal fan having a low-cost structure to apply preload to a bearing.A centrifugal fan 100 includes an impeller 120, a shaft 125 joined to the impeller 120, a ball bearing 181 having an inner ring fixed to the shaft 125...
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JP6753752B2 |
To provide a support structure of a bicycle electric motor, which can suppress the axial movement of an output shaft, and a bicycle drive unit including the same.A support structure is for a bicycle electric motor that comprises a rotor,...
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JP6751325B2 |
To effectively prevent occurrence of electric corrosion in a bearing.In a bearing structure which includes a shaft member connected to a motor, a pair of bearings disposed on the shaft member at an interval in the axial direction, and a ...
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JP6746798B2 |
This internal-combustion engine is provided with: a crank case (33b); a rolling bearing (48) having an outer race (74a) which is inserted into a bearing hole (47) in the crank case (33b); a crankshaft (46) which is fitted into an inner r...
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JP2020122490A |
To provide a two-split holder for a bearing suitable to prevent rattling between holder bodies, with a simple constitution.In a two-split holder configured such that a pair of semi-annular holder bodies having a shape divided into two is...
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JP6740397B2 |
To provide an inner rotor type motor which can hold a rotation position and has a simple structure.An inner rotor type motor 1 includes: an armature assembly 1b; a frame assembly 1a; and a biasing structure 40. The armature assembly 1b h...
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JP6736700B2 |
An alignment mechanism to position and focus a lens assembly includes a housing and an eccentric shaft supported by the housing. The eccentric shaft is configured to rotate with respect to the housing. The alignment mechanism further inc...
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JP6729165B2 |
To provide a structure of a power transmission device for a vehicle which alleviates a variation of the backlash of a gearing portion of a gear caused by a temperature based on a difference of thermal expansion factors of constituent mem...
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JP6721130B1 |
After the bearing (15) supports the shaft (12), the holding device (41) is separated from the shaft (12). If the measured evaluation value is out of the specified range, the holding device (41) holds the end portion (12b), and then the c...
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JP6718499B2 |
A transmission component set has a bearing ring (1) and a strain wave gear mounted thereon. Said strain wave gear comprises an input or drive component (2), a flexible or resilient transmission component (4) having external teeth (3), an...
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JP2020101259A |
To actualize the longer lifetime of a bearing while extremely avoiding the load ununiformity of rolling elements in the peripheral direction of the bearing.A double row rolling bearing 1 includes an outer ring 2 having a first structural...
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JP6714891B1 |
The tip of the housing that supports the rotating shaft via a rolling bearing that is preloaded in a fixed position, between the outer peripheral surface of the outer ring of the rolling bearing and the housing, and between the inner per...
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JP2020099149A |
To provide a brushless motor using a ball bearing that can provide a high-precision preload.The lower end of an outer ring 22b of a first ball bearing 22 is in contact with the upper end of an inner flange 21a of a bearing housing 21, an...
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JP6710022B2 |
To enable main shaft rigidity to be changed by changing preload of a bearing pivoting a main shaft, and thereby enable main shaft vibration characteristic such as compliance to be changed.Provided is an oil static pressure bearing 50 as ...
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JP2020091031A |
To provide a slide bearing which is suitable for supporting a shaft member inserted into a cylinder member so as to be turnable with respect to the cylinder member.A slide bearing 1 comprises: an inner case 3 into which a steering shaft ...
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JP2020084803A |
To provide a submerged pump motor and a shaft support device for a pump rotating shaft.A shaft support device 3 is fixed to a casing 21 of a motor 1 or a pump 2 and is provided so as to be rotated while supporting the motor 1 or a rotati...
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JP2020079602A |
To obtain stable rotation of a rotary shaft by using not an expensive bearing, but a general bearing and eliminating a thrust rattle at low cost, according to the present invention.A bearing structure according to the present invention h...
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JP2020512515A |
Joint assembly. This joint assembly has a first joint member that is drive-connected to the second joint member by one or more torque distribution elements. The stub shaft is driven and connected to at least a part of the second joint me...
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JP6685459B2 |
Disclosed is a module bearing and a power transmission device including the module bearing. A module bearing includes a module outer wheel supported by and in contact with a side wall of a gear to guide rotational or linear motion of the...
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JP6684673B2 |
A main spindle device for a machine tool includes a main spindle, a cushioning member, and an arithmetic unit. The cushioning member is disposed on a position where a vibration displacement of a rotator exists. The arithmetic unit uses d...
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JP6683705B2 |
A bearing for holding a rotary conversion tool (10, 11) that includes two end rolling bearing devices (26, 28), at least one intermediate rolling bearing device (27) interposed between the end rolling bearing devices (26, 28), the end an...
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JP2020051489A |
To realize a preload mechanism that does not require correction processing of a hole formed on the back surface of an outer ring of a conical roller bearing, and can avoid using a dedicated member for a member for retaining a movable mem...
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JP2020051503A |
To provide a pre-load application structure of a motor support bearing which enables improvement of assemblability of a component.A protection member 72 includes: a ring part 72a disposed between an elastic member 71 and a bearing 41; a ...
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JP2020048256A |
To provide a compact and performance-improved rotary drive device capable of reducing variations in a preload to be applied between positions with respect to a circumferential direction of a bearing.A rotary drive device 100 comprises a ...
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JP2020041577A |
To provide a power transmission device capable of obtaining creep abrasion suppression effect under a low-temperature environment.A power transmission device 10 is configured such that a cylindrical gear member 12 having a gear on an out...
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JP6662999B2 |
A combined cylindrical roller bearing (1) is provided with first and second angular cylindrical roller bearings (10, 20) coaxially disposed in parallel, and a shim plate (3) sandwiched between first and second inner races (12, 22) of the...
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JP6662213B2 |
To provide a rotary motor which enables a worker to easily incorporate a web washer while checking an assembly state of the web washer, and to provide an assembly method of the rotary motor.A rotary motor includes: a bearing housing 28 w...
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JP2020026191A |
To provide a steering device including a speed reducer that is resistant to a change in temperature.A steering device 100 applied to steer a steering wheel 201 by increasing rotational torque of an electric motor 140 by a speed reducer i...
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JP2020026865A |
To provide a rotation device having a preload mechanism for a bearing capable of appropriately changing the level of the preload.The rotation device includes a shaft 4, a bearing 8 which supports a part at one end of the shaft 4, a magne...
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JP2020026807A |
To provide bearing structure and the like allowing for improvement of preload management.The bearing structure comprises a shaft 10 and a rotor 20, a stator portion 30, a first bearing 60, a second bearing 70, and a spring 80. The first ...
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JP6642268B2 |
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JP6631247B2 |
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JP2019219013A |
To provide an electric actuator for enabling the position control (travel control) of a movable body without using an encoder or the like for electrical control.An electric actuator 10 includes: a motor 11; an operation mechanism 12 havi...
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JP2019211042A |
To provide a rolling bearing capable of increasing the load capacity of a first roller to which a radial load is applied.A roller bearing 10 includes an inner ring 11 and outer ring 12 formed annularly, and plural rows of rollers 13, 14,...
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JP2019211005A |
To reduce slide friction resistance in a thrust needle bearing.A thrust needle bearing 10 comprises an annular cage 21 having a plurality of pockets, and a plurality of rollers 22 arranged between a first raceway surface 15 and a second ...
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JP2019203563A |
To provide a slide bearing capable of suppressing occurrence of stress relaxation and securing high radial rigidity and low slide resistance, and further capable of reducing a manufacturing cost.A slide bearing 1 comprises a bearing body...
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JP2019203570A |
To provide a bearing device capable of effectively preventing the pre-load extraction due to heat expansion with a relatively simple configuration.In bearing devices 1, a rotating shaft 3 made of a predetermined metal material is rotatab...
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