Abstract: A steering mechanism for simulating a haptic feedback steering sensation includes a steering shaft connected to a steering wheel. An angle measuring device is arranged on the steering shaft and measures a rotation angle that is prevailing at the steering wheel the steering mechanism further includes an electric motor arranged in a coaxial manner with respect to the steering shaft. The electric motor is configured to apply a torque to the steering shaft. The direction of rotation of the torque applied by the electric motor is usually oriented in the opposite direction to the direction of rotation of the rotation angle that is prevailing at the steering wheel. Furthermore, the magnitude of the torque is dependent upon the value of the rotation angle and upon the vehicle model that is used as a basis. The electric motor is connected to the steering shaft via a torsionally elastic coupling.

Abstract: The invention relates to an actuator for a flap for opening and closing an air passage in an air conditioner, ventilator, and/or heater, comprising a housing (1) shaped to accommodate a motor as well as a gearing arrangement. The actuator is characterized in that the housing (1) includes at least one abutment element (5) for limiting the movement of a rotational shaft (3) with respect to the casing of the motor, as well as a means (6) for compensating for a space between the abutment element (5) and a free end of the rotational shaft (3).

Abstract: Provided is a motor device in which the entire length of a motor can be shortened as much as possible while the positional deviation of a shaft in a thrust direction is prevented and a shaft length sufficient to suppress the inclination of the shaft can be ensured. A motor device provided with a shaft with a rotor fixed on the outer surface thereof, and a thrust pressurization unit that supports an end opposite the output side of the shaft while pressurizing the end in an axial direction may be configured so that the thrust pressurization unit may be provided with a coil spring that pressurizes the end opposite the output side of the shaft in the axial direction and the thrust pressurization unit may be disposed inside the rotor.

Abstract: Bearing retention devices and methods for their use in isolation bearings such as seismic bearings. In preferred embodiments, the invention includes a sleeve structure assembly secured by a plurality of elastic straps to upper and lower plates or pans of a rolling ball isolation bearing. The sleeve component is structured to retain the rolling ball within the circumference or area of the bearing plates of each the upper and lower bearing portions of the bearing while permitting the ball to freely roll in any direction during a seismic event.

Abstract: An apparatus for dispensing a beverage, for use with pressurized sources of one or more fluids, includes a handle having one or more valve chambers; a fluid valve in each valve chamber; one or more butterfly plates, each configured to bias one or more of the valve stems of the valves towards a valve-open position when the butterfly plate is pressed, thus opening fluidic communication from each of the fluid sources to a corresponding discharge opening; and a ball bearing cluster which provides one or more pivot points for the butterfly plates. The ball bearing cluster includes a retainer and at least one ball-shaped projection projecting from the retainer. The ball-shaped projection remains in a substantially fixed position and orientation with respect to both the retainer and the handle when one or more of the butterfly plates is pressed. The ball bearing cluster and butterfly plate may be molded.

Abstract: A stepping motor includes a bracket, a housing having a first end coupled to the bracket and a second end having a reduced width compared with the first end, a stator disposed in the housing to form electric field, a first supporting unit formed on a first end of the bracket, a magnet fixed corresponding to the stator to provide the electric field, a second supporting unit supported on the second end of the housing, a rotor supported by the first and second supporting units, and a stopper fitted on an opened end of the second end of the housing to support the second supporting unit.

Abstract: A needle bearing is designed for a high speed drill or MDA surgical instruments that include alternate rollers made from metallic and plastic or synthetic material mounted in the bore of the housing of the drill or MDA and the shaft being supported by the needle bearing. The inner race, outer race and/or cage may be eliminated from the assembly.

Abstract: To improve a spherical bearing including a bearing body with a convex spherical surface, a holder, on which the bearing body is disposed, and a bearing shell with a concave spherical surface, the bearing shell being rotatably mounted on the bearing body, in such a way that the mounting of the bearing body on the holder can be carried out a simple and low-cost way, it is provided that the holder is made of a plastics material, and the holder and the bearing body are held non-rotatably with respect to each other. A device for preventing rotation, which holds the bearing body on the holder to be non-rotatable with respect to the holder, may be provided.

Abstract: A motor includes a rotor section with a rotor shaft having an end section, and a stator section including a yoke section disposed opposite the rotor section. The motor is also equipped with a bearing assembly having a bearing member that includes a main bearing section with a recess section and a ball bearing received in the recess section wherein the ball bearing rotatably support the end section of the rotor shaft, and a bearing holder defining a center through hole that slidably holds the main bearing section of the bearing member in the axial direction, wherein the bearing holder is formed from a sintered compact member.

Abstract: A pivot bearing cartridge for use in a head stack assembly. The pivot bearing cartridge includes a pivot shaft including a shaft body and a shaft distal end. The pivot bearing cartridge further includes a cap disposed about the pivot shaft. The cap includes a cap annular body and a cap closed end. The pivot bearing cartridge further includes a ball bearing set in mechanical communication with the pivot shaft and the cap annular body. The pivot bearing cartridge further includes a central pivot element disposed between and in mechanical communication with the shaft distal end and the cap closed end for facilitating rotation of the cap relative to the pivot shaft.

Abstract: A pivot bearing cartridge for use in a head stack assembly. The pivot bearing cartridge includes a pivot shaft including a shaft body and a shaft distal end. The pivot bearing cartridge further includes a cap disposed about the pivot shaft. The cap includes a cap annular body and a cap closed end. The pivot bearing cartridge further includes a ball bearing set in mechanical communication with the pivot shaft and the cap annular body. The pivot bearing cartridge further includes a central pivot element disposed between and in mechanical communication with the shaft distal end and the cap closed end for facilitating rotation of the cap relative to the pivot shaft.

Abstract: Method of connecting or joining at least two panels in a piece of furniture and a piece of furniture made thereby. The method includes providing a first panel, wherein the first panel includes a surface having at least one recess, providing a second panel, wherein the second panel includes a surface having at least one recess, arranging the surface of the first panel adjacent the surface of the second panel, and connecting the first panel to the second panel using at least one sphere. The at least one sphere projects into the at least one recess of each of the first and the second panels.

Abstract: An exchangeable lubricant cartridge for a step bearing of an open-end spinning rotor is disclosed. The lubricant cartridge comprises a chamber containing lubricating grease in which a step bearing ball is arranged. A bore hole is provided for a rotor shaft at a front housing wall of the lubricant cartridge, while at a rear housing wall an entry bore hole is provided for a thrust bearing. For the purpose of facilitating assembly, the housing is divided into a first housing section comprising the front housing wall and a second housing section comprising the rear housing wall.

Abstract: A bearing arrangement for an articulatable support (6) comprises bearing assemblies (20/28, 22/29, 24/30 and 26/32). In one embodiment the assemblies comprise a ball (20, 22, 24, 26) and aperture (40 FIG. 2) having sliding contact at discrete areas (36) during relative rotation. In another embodiment the sliding contact may be formed at a ball (20, 22, 24, 26) and a plastics e.g. P.T.F.E. support (84, 85 FIGS. 10 and 11). Resilient displacement of the bearing contact along a rotational axis (A and B) is provided by planar spring supports (28, 32) and rigid support is provided by supports (29 and 30).

Abstract: A ball-type anti-friction device which has a housing, a ball cage mounted within the housing for movement relative to the housing between a lower inactive position and an upper active position. The ball cage contains a relatively large ball mounted on relatively small bearing balls so that when the ball cage is in the lower or inactive position, the large ball is below the top surface of the housing and when the ball cage is in the upper or active position, the ball extends above the top surface of the housing. In a first embodiment, the housing contains a double acting fluid drive system. The fluid drive system includes two fluid chambers and a piston connected to the ball cage. The piston is selectively actuated by selective pressurization of the two fluid chambers. In a second embodiment, the ball cage is actuated by a single acting fluid drive system. A piston is connected to the ball cage and is biased downwardly to normally maintain the ball cage and large ball in the lower or inactive position.

Abstract: The closed end 11b of the Sleeve 11 and the shaft end 12b are made to be point-contacted through the ball 14. By this point contact, while allowing the sleeve 11 and the shaft 12 to rotate, the pressurization in the axial direction between the sleeve and the shaft can be received. Further, by giving this pressurization, the inner ring 13a of the bearing 13 is displaced toward the axial direction (downward in FIG. 1) interposing the ball 13b to absorb the play of the bearing 13. Accordingly, even though merely one bearing 13 is used, the sleeve 11 and the shaft 12 are prevented from being deflected, to obtain the pivot assembly 10 having a necessary rotation precision.

Abstract: A metallic receiving plate is located in a holding recess of a housing such that the plate opposes the distal end face of a worm shaft. The distal end of the receiving plate with respect to the rotating shaft defines a charging cavity in the holding recess. A resin material is charged into the charging cavity. A metallic ball is located between the distal end face of the worm shaft and the receiving plate. The ball makes point contact with the distal end face of the worm shaft and with the receiving plate. Two protrusions are formed on the receiving plate. The protrusions are embedded in the resin material to connect the receiving plate to the solidified resin material and to prevent the receiving plate from rotating. Thus, the rotational resistance of the worm shaft is reduced, and the durability of the bearing device is improved.

Abstract: A foot device for supporting electronic equipment thereon comprises a sleeve having an axial through bole, and a plurality of balls one by one in line provided in the hole wherein the bottom and top balls are extended above the axial through hole. As such, in use, the electronic equipment is supported by the extended ball of the foot device, while not in contact with supporting plane. This point based contact has the effect of suspending the electronic equipment in the air, thus eliminating interference. Further, the vibration generated by the electronic equipment is not absorbed and interfered by the supporting plane, resulting in a uniform transmission of vibration to all directions without damping or interfering for achieving a maximum quality.

Abstract: A step bearing is provided to axially support a shaft of an open-end spinning rotor, having a step bearing housing with a freely rotatable supporting ball, against which the end of the shaft is supported. The step bearing housing has a take-up space in the form of a lubricating grease reservoir in which the supporting ball is located. A lubricant distributor is arranged at the take-up space and is movable relative thereto.

Abstract: A step bearing is provided for the end of the shaft of an open-end spinning rotor. The step bearing has a cartridge which is clamped fixedly by a cylindrical outer surface in a corresponding hollow cylindrical receiver surface of a supporting part. The cartridge includes a freely rotatable supporting ball for supporting the shaft; a thrust bearing screwed fixedly onto the cartridge for supporting the supporting ball; and a take-up receptacle for lubricating grease. The cartridge, including the supporting ball and the thrust bearing, can be exchanged for another cartridge with fresh lubricating grease.

Abstract: A bearing design for a rotatable assembly includes two freely rotating balls mounted on the axis of rotation of the assembly and axially separated, one near each axial end of the assembly. Each ball is confined by a moving concave bearing surface of the rotatable assembly and a corresponding fixed concave bearing surface of a mounting attached to a frame, housing, or similar non-rotating structure. One of the fixed mountings is preferably attached to a compressible spring to provide a controlled axial pre-load to the assembly. The balls are substantially enclosed and lubricant provided in the enclosed cavity. In the preferred embodiment, the rotatable assembly is a rotary actuator assembly of a disk drive. Compared to conventional ball bearing designs, the present design reduces the number of parts and volume of space occupied by the bearings, reduces hysteresis, and improves shock resistance.

Abstract: A step bearing for a shaft of a spinning rotor includes a freely rotatable supporting ball and a thrust bearing, against which the supporting ball is disposed. The supporting ball, the thrust bearing and a front-sided supporting surface of the shaft are placed in a housing for lubricating grease. The housing is arranged in a cartridge, which, together with the supporting ball, can be disassembled. It is hereby possible to renew the supply of lubricating grease by simply exchanging the cartridge.

Abstract: According to this invention, in a stepping motor in which bearings are disposed at two end portions of a motor shaft which is coaxially fixed to a magnet rotor, one bearing of the motor shaft arranged in a motor case, a bobbin serving as a coil frame, and the positioning portion of the motor holder are integrally formed of a resin. In addition, two projecting pieces that protrude outward are formed on the bearing on the motor holder side of the stepping motor. A projecting portion is formed on each projecting piece. A positioning rotation regulating hole which is fitted on the projecting portion to regulate rotation and an opening for passing the projecting piece are provided to the bearing support portion of the motor holder.

Abstract: A supporting pivot thrust bearing apparatus is provided in which a steel ball groove is formed at both ends of a rotary shaft inserted into a through hole of a sleeve, and a steel ball is fixably inserted between the steel ball groove and a thrust support. The steel ball is in contact with the steel ball groove by line contact so that lateral of the steel ball can be prevented. As a result, eccentricity between a center shaft of the steel ball and a center shaft of the rotary shaft can be prevented, thereby improving rotative stabilization of the rotary shaft.

Abstract: An ultra-slim disk storage unit includes a frame and a cover for engaging the frame to create first and second enclosed spaces therein. In one of the enclosed spaces a disk drive assembly is housed which provides readable and writable information storage on a disk medium. Electronics for controlling the operation of the disk drive assembly is housed on a board contained within the second enclosed space. A connector provides coupling to the disk drive assembly electronics for external electrical connection to the disk storage unit. The connector is disposed along a peripheral side of the frame in accordance with PCMCIA standards.

Abstract: A bearing design for a rotatable assembly includes two freely rotating balls mounted on the axis of rotation of the assembly and axially separated, one near each axial end of the assembly. Each ball is confined by a moving concave (preferably conical or frustro-conical) bearing surface of the rotatable assembly and a corresponding fixed concave bearing surface of a mounting attached to a frame, housing, or similar non-rotating structure. One of the fixed mountings is preferably attached to a compressible spring to provide a controlled axial pre-load to the assembly. The balls are substantially enclosed and lubricant provided in the enclosed cavity. In the preferred embodiment, the rotatable assembly is a rotary actuator assembly of a disk drive. Compared to conventional ball bearing designs, the present design reduces the number of parts and volume of space occupied by the bearings, reduces hysteresis, and improves shock resistance.

Abstract: In the case of a shaft for an open-end spinning rotor, a supporting element arranged at a step bearing extends the shaft. The supporting element is arranged centrical to the axis of the shaft. The supporting element is affixed to the shaft by means of a separate holding part, which engages with the circumferential surface of the shaft to enable in a simple way, an exact axial and radial positioning of the supporting element on the shaft.

Abstract: A thrust bearing for bearing a load along a force vector includes at least two roller elements in rolling contact with one another and arranged along the force vector such that the load is borne through the roller elements. The roller elements are retained within a retainer such that they remain aligned along the force vector while subjected to loads. The retainer used to house the roller elements may be designed to abut the roller elements at minimum points of contact, or alternatively to distribute the load borne by one or both of the roller elements across a greater surface area. One application of the preferred thrust bearings is in an apparatus such as a keyboard support for reducing repetitive stress injuries. A main disk is rotatably coupled to a base and supports a support member on a plurality of the thrust bearings.

Abstract: A low friction bearing is provided for a mass balanced rotary voice coil actuator of a disk drive including a base. The bearing comprises an upper pivot bearing assembly fixed to one of the actuator and the base and including a plurality of small bearing balls in an outer bearing race thereof, a lower pivot bearing assembly fixed to the same one of the actuator and the base and including a plurality of small bearing balls in an outer bearing race thereof, an upper main bearing ball for engaging the other of the actuator and the base and for making rolling contact against the plurality of small bearing balls of the upper pivot bearing assembly, and a lower main bearing ball for engaging the same other of the actuator and the base and for making rolling contact against the plurality of small bearing balls of the lower pivot bearing assembly.

Abstract: An ultra-slim disk storage unit includes a frame and a cover for engaging the frame to create first and second enclosed spaces therein. In one of the enclosed spaces a disk drive assembly is housed which provides readable and writeable information storage on a disk medium. Electronics for controlling the operation of the disk drive assembly is housed on a board contained within the second enclosed space. A connector provides coupling to the disk drive assembly electronics for external electrical connection to the disk storage unit. The connector is disposed along a peripheral side of the frame in accordance with PCMCIA standards.

Abstract: Bearing rings are carried one each in a shaft end and in a cap and seat against a ball element therebetween. Preloading of each ball element at the shaft ends is achieved by rotation of the cap along a threaded end segment of a bushing of a bearing assembly. A set screw on the cap seats against a circular wall of the bearing assembly for infinite bearing adjustment. A sealed chamber for lubricant is defined by the cap and permits direct application of lubricant to the ball element at each end of the shaft.

Abstract: A bearing system in a motor for a floppy disk drive (FDD) apparatus includes a protective cap mounted to one side of the motor, a first pivot bearing arranged movable to and from the protective cap in an axial direction of a rotary shaft, a thrust spring provided for urging the first pivot bearing in the axial direction of the rotary shaft, the rotary shaft having a rotor fixedly mounted thereto and rotatably supported at one end by the first pivot bearing and at the other end by a second pivot bearing mounted to a base for installation of the motor, and an alignment bushing arranged through which the rotary shaft of the motor extends without direct contact and closely fitted into a positioning hole provided in a plate to which the motor is secured. The rotary shaft remains not in direct contact with (spaced apart from) the alignment bushing and, acting as a leadscrew, can thus rotate at a higher accuracy, eliminating intrinsic drawbacks of the FDD motor.

Abstract: A rotor support shaft for an open-end spinning rotor assembly is disclosed which is equipped on its free end with a supporting element which forms an essentially radially extending supporting surface for a vibrating ball of a step bearing. The supporting element is made of a material, preferably for a ceramic material, which has a higher hardness than steel. The supporting element is arranged in a receiving device concentric with respect to the axis of the shaft in such a manner that the supporting surface projects slightly from the front face of the shaft.

Abstract: A hydrodynamic bearing assembly for a disk storage unit includes a hub having a longitudinal axis disposed in a cavity formed between a base and a cover. A pair of balls is disposed within a pair of corresponding sockets with each being aligned opposite one another along a longitudinal axis of the hub. The pair of sockets are affixed to the base and cover plates, respectively, while the pair of balls are affixed to the hub. The clearance space between each ball and socket is filled with a liquid lubricant held in place by a surface tension seal.

Abstract: A Belleville spring/ball combination is utilized in a rotating anode target bearing assembly in an X-ray tube for thermal and electrical conduction as well as self-centering of the target shaft and noise reduction.

Abstract: The starting device includes a starting pinion mounted on a thrust rod and movable between a disengaged and engaged position with an internal combustion engine; a movable switching bolt located in a solenoid; a sphere mounted at an end face of the switching bolt closest to the thrust rod; a disc and a spring device arranged between the sphere and the end face of the switching bolt, the spring device being located between the disc and the end face, and a holding device for retaining the sphere on the end face of the switching bolt.

Abstract: The rotary machine includes an automatically-retracting axial abutment system mounted between the rotary shaft of the machine and its case, the abutment system having a displaceable abutment portion that is prevented from rotating, a rotary abutment portion mounted on the displaceable abutment portion by means of a bearing suitable for transmitting axial forces to the displaceable abutment portion, a very stiff flexible device connecting the displaceable abutment portion to the case in such a manner as to enable the displaceable abutment portion to move through a small amplitude in translation along the axis of the rotary shaft, and an axial thrust transmission member for transmitting thrust from the rotary shaft to the rotary abutment portion, the thrust transmission member being shaped to be in contact between the rotary shaft and the displaceable abutment portion when the machine is at rest, and to drive the rotary abutment portion via purely static friction when the machine is rotating and is exerting axi

Abstract: A motor output shaft positioning device for motors with worm reduction gears for outputting the output of a motor output shaft via a worm reduction gear, comprising a gear case having a hollow part for housing a worm fitted to a motor output shaft and a worm wheel meshing with the worm and receiving an end of the motor output shaft; the hollow part receiving a bearing of the motor output shaft and a steel ball; a bearing holder having projections projecting towards the bottom of the hollow part, and a filler that is injected into the hollow part through a filling hole formed on the hollow part.

Abstract: In an open-end spinning device with a spinning rotor whose shaft bears axially upon the ball of a step bearing, said step bearing is designed for the attenuation of axial oscillations and shocks of the spinning rotor. The bearing includes an elongated housing provided with a ball supporting member and a resilient member.

Abstract: A thrust bearing device for a motor comprises a housing of the motor, a thrust plate disposed in the housing and in contact with an end of a motor shaft, a spring for energizing the motor shaft through the thrust plate, and the housing is formed with a stepped portion for restricting movement of the thrust plate within a predetermined small range. According to this invention, it is possible to improve the durability and the reliability of the motor.

Abstract: A reduction gear is shown, which is designed to facilitate assembly of essential parts in a case. The reduction gear comprises a worm; a worm wheel meshed with the worm; a lower case part having a semicylindrical recess which rotatably receives the worm, and an upper case part to be mounted on the lower case part to close the semicylindrical recess. The semicylindrical recess has an opening which is so sized as to permit insertion of the worm into the semicylindrical recess therethrough. A threaded bore is formed in the lower case part, which is merged and aligned with the semicylindrical recess. A bolt is screwed into the threaded bore having its inside end pressed against one axial end of the worm for achieving a stable rotation of the worm in the semicylindrical recess.

Abstract: A geared motor comprising a rotating axle rotating in accordance with the rotation of a rotor, a gear rotating axle for outputting from the rotating axle speed reduced rotation, and a flexible coupling consisting of a first coupling disposed on the rotating axle of the rotor and rotating together with the rotating axle and the rotor, a second coupling disposed on the gear rotating axle, and rotating together with the gear rotating axle, a rubber damper disposed between the first coupling and the second coupling for transmitting the rotation of the first coupling to the second coupling, a thrust-force bracing member disposed between the rotating axle of the rotor and the gear rotating axle and in contact with the rotating axle and the gear rotating axle, for transmitting thrust force from one of the rotating axle of the rotor and the gear rotating axle to the other of the two arranged so that even if thrust force acts on the rotating axle of the rotor or on the gear rotating axle, the thrust force does not act

Abstract: A pressure roller device includes upper and lower roller holders and small diameter upper and lower pressure rollers which are supported by the upper and lower roller holders, respectively. Upper and lower backup rollers, which are, respectively, provided at upper and lower sides of the upper and lower pressure rollers, remote from a point of contact of the upper and lower pressure rollers are rotatably supported by the upper and lower roller holders, respectively. The upper roller holder is rotatably supported, at one end of the upper and lower roller holders, by the lower roller holder. A pressing mechanism presses the upper roller holder against the lower roller holder, which is provided at the other end of the upper and lower roller holders, with the upper roller holder being rotated so as to be pressed against the lower roller holder, such that the upper and lower pressure rollers are brought into pressing contact with each other by the upper and lower backup rollers.

Abstract: In the case of a bearing for an open-end spinning rotor, the shaft of which is radially disposed by means of supporting disks and axially, with its end, is supported at a ball, it is provided that the ball is suppported by means of an abutment which has finger-type parts which are constructed such that they have natural frequencies which slightly differ from one another and permit a beat.

Abstract: A motor-vehicle transmission has a housing extending along an axis and having axially spaced front and rear sides, a main input shaft centered on the axis and having a front end at the front housing side and a rear end spaced axially backward therefrom, a main output shaft centered on the axis and having a front end at the input-shaft rear end and a rear end at the rear housing side, and a secondary countershaft adjacent the input and output shafts and having front and rear ends respectively at the front and rear housing sides. A cylindrical-roller bearing supports the output-shaft front end on the input-shaft rear end for rotation therein and prevents relative radial movement but permits relative axial movement of the input-shaft rear end and output-shaft front end. Roller-type axial-thrust bearings support the input-shaft front end, the output-shaft rear end, and one of the ends of the countershaft on the housing.

Abstract: The disclosure concerns rotating-anode type X-ray tubes. According to the disclosure, the rotor is supported by passive magnetic bearings, the respective positions of which are such that the rotor is shifted in the direction opposite to that of the anode. The rotor is kept shifted by a thrust-bearing acts, at the same time, as an electrical conductor for the anode current.

Abstract: A hydraulically-operated piston machine includes at least one cylinder and a piston axially movably guided in the cylinder. The piston is connected to a crankshaft or the like by means of a connecting rod. The connecting rod and the piston each have spherically-shaped bearing surfaces serving for connecting the connecting rod and the piston with each other in an articulated manner. The connecting rod defines at its end connected to the piston a radially outwardly facing spherical surface portion which is arranged concentrically with the spherical bearing surface of the connecting rod. The spherical surface portion rests against the surface of a recess defined in the piston, so that a hollow space is defined between the surface of the recess and the spherical surface portion. The piston defines a bore for effecting communication of fluids between the interior of the cylinder and the hollow space.

Abstract: A turbopump assembly 10 including a pump section 12 and a turbine section 14 is provided with forward and aft shaft centerline containment assemblies 20,84 in combination with radial hydrostatic bearings 28,72, and seals 26 to support transient loads and center the shaft 22 within the housing at startup and shutdown.

Abstract: A bearing device of a rotary cylinder for a magnetic head includes a fixed shaft and a sleeve rotatably supported about the fixed shaft through a radial bearing. A thrust receiver secured to one axial end of the sleeve has a convex spherical surface at the side confronting the fixed shaft, and a concave spherical surface is formed on an end surface of the fixed shaft confronting the convex spherical surface. A radius of curvature of the concave spherical surface is larger than a radius of curvature of the convex spherical surface of the thrust receiver.

Abstract: A device for axially supporting a rotating roller (1) resting axially on a fixed frame, at each end, by a contact ball bearing (3). According to the invention, the contact ball bearing (3) is mounted on the end of a support piece (5) consisting of a cylindrical insert (51) extended, on the roller side, by an enlarged base piece (52), fitting inside a recess (6) and bearing, in the axial direction, against the end wall (62) of the recess (6), by an axial bearing (66) and, in the radial direction, against the side wall (61) of the recess (6), by a rolling bearing (65) centering the insert (51) about the axis of rotation (10), the assembly being held in position by a cap (7) closing the recess (6).