Abstract: A compound ball bearing comprises a bearing body including a spindle 1, a sleeve 2 surrounding the spindle 1, and an inner ring fitted on the spindle or an outer ring fitted in the sleeve, and balls 5, 9 provided between the spindle 1 and sleeve 2, between the spindle and outer ring or between the inner ring 6 and sleeve 2. A motor component such as a hub 11 for the rotor, a flange for the motor base or a yoke yolder is molded as a one-piece molding with the sleeve, spindle or inner ring. The inner or outer ring can be secured in a proper position by facilitating its pre-loading, and the vibration accuracy of the spindle can be improved.

Abstract: A compound ball bearing for swing arm unit acomprises a bearing assembly including a spindle 1, a sleeve 2 surrounding the spindle 1, an inner ring fitted on the spindle, with balls 5 and 9 being provided between the spindle 1 and sleeve 2, between the inner ring 6 and sleeve 2. A swing arm 22 is mounted on the sleeve 2. Conventional outer rings are not necessary and the outer diameter of the sleeve can be made smaller than conventional devices.

Abstract: A compound ball bearing comprises a bearing assembly including a spindle 1, a sleeve 2 surrounding the spindle 1, and an inner ring 6 fitted on the spindle or an outer ring fitted in the sleeve, and balls 5, 9 provided between the spindle 1 and sleeve 2, between the spindle and outer ring or between the inner ring 6 and sleeve 2. A hub 11 serving as the rotor of a motor is formed as a one-piece unit with the spindle. The vibration accuracy of the spindle 1 can be improved.

Abstract: The rolling-bearing unit with reduction gear of this invention includes, an outer ring or race having outer ring raceways formed on its inside circumferential surface, an inner ring or race having inner ring raceways formed on its outside circumferential surface and which face the outer ring raceways, several rolling bodies located between the outer ring raceways and inner ring raceways, a ring gear formed on the inside circumferential surface of a member which is affixed with respect to the outer ring or race and which is located away from the outer ring raceway in the axial direction, several support shafts which are connected respectively at their base portion at circumferential locations on the end face of the inner ring or race and arranged so that they are parallel to the outer and inner rings or races, and planetary gears which are rotatably supported around the support shafts and which mesh with the ring gear.

Abstract: Bearing design for the drive gear and the pump impeller of a cooling water pump for motor vehicles, with a shaft, which is installed so that it can rotate by means of two rows of balls in an outer bearing ring, and which projects on both sides beyond the outer bearing ring, characterized in that the shaft (12) is produced by the extrusion method and has a wall (20) separating chambers or compartments extending inwardly from opposing ends of the shaft, the wall is located on the drive side outside the rows of balls (24).

Abstract: A bearing assembly of a bottom bracket for a bicycle, the bottom bracket includes an axle, at least one bearing, a tube and a housing, the tube engaged in the housing and the axle rotatably engaged in the tube by at least one bearing disposed therebetween. The tube has at least one annular recess defined in an inner periphery thereof and the axle has a threaded portion for threadedly engaging to a race which has an annular recess defined in an outer periphery thereof. The bearing is received between the annular recess of the tube and the annular recess of the race, an abutment between the tube and the bearing defining a first arc on a vertical plane passing through a center of the bearing, the first arc having an upper distal point and a lower distal point, the upper distal point located in the first (or the second) quadrant of the vertical plane with regard to a right-angle coordinate which has an origin of ordinates at the center of the bearing.

Abstract: The double-row ball bearing having a stationary shaft, a rotatable outer ring and balls between them is set in an inspection apparatus, so that the acoustic sound produced as the outer ring is rotated with the shaft inserted inside the balls is detected by a vibration pickup device to examine for the flaws on the surfaces of balls, shaft and outer ring.

Abstract: A compound ball bearing comprises a bearing body including a spindle 1, a sleeve 2 surrounding the spindle 1, and an inner ring fitted on the spindle or an outer ring fitted in the sleeve, and balls 5, 9 provided between the spindle 1 and sleeve 2, between the spindle and outer ring or between the inner ring 6 and sleeve 2. A motor component such as a hub 11 for the rotor, a flange for the motor base or a yoke yolder is molded as a one-piece molding with the sleeve, spindle or inner ring. The inner or outer ring can be secured in a proper position by facilitating its pre-loading, and the vibration accuracy of the spindle can be improved.

Abstract: A preloaded rolling bearing unit of the double row type has a pair of inner rings which have a raceway formed on a peripheral face at a location displaced in the axial direction from a central portion thereof, a first cylindrical portion axially protruding by a relatively large amount from one side of the raceway, and a second cylindrical portion axially protruding by a relatively small amount from the other side of the fourth raceway, whereby when the inner ring is engaged with an outer ring, the first cylindrical portion is positioned on an axially inner side of the bearing unit and the second cylindrical portion is positioned on an axially outer side of the bearing unit.

Abstract: A bearing assembly supports an actuator arm for rotation about an axis in a disc drive. The bearing assembly includes a shaft generally defining the axis. A plurality of bearings are disposed about the shaft. A sleeve is coupled to the bearings for rotation about the shaft, and a damper is coupled to the sleeve. The damper damps rotary actuator vibrations.

Abstract: A bearing block has a central hub with a pair of circular grooves near the sides of the hub. The grooves define an inner ball race and also define an outer ball bearing retaining lip. A ring-shaped sheave is disposed around the hub and has a pair of recesses in the sides, which define an outer bearing race and a thrust bearing race. Ball bearings are snap fitted into the races over the lips, such as that the bearings are self-contained in the assembly.

Abstract: A process cartridge mountable to an image forming apparatus, including a rotary member, a holding member for holding the rotary member, and a plurality of rolling members assembled between the rotary member and the holding member independently from the holding member.

Abstract: A bicycle pedal for attaching to a crank arm having a pedal shaft including an attachment portion formed at one end thereof and attached to the crank arm, the pedal shaft defining a small diameter portion formed adjacent the other end thereof and having a smaller diameter than the attachment portion, and a first and a second ball bearings arranged in a region of the small diameter portion and spaced apart from each other axially of the pedal shaft. A needle bearing is disposed adjacent the ball bearings, and a pedal body is rotatably supported on the small diameter portion through the first and second ball bearings and the needle bearing. The pedal body defines at least one tread on a surface thereof. The needle bearing may be disposed between the first ball bearing and second ball bearing, or may be disposed closer than the first and second ball bearings to the crank arm or closer than the first and second ball bearings to an extreme end of the pedal shaft.

Abstract: An antifriction bearing with an outer ring having a main groove in its periphery. The groove has sharp edges which engage the interior of a housing surrounding the outer ring. Alternately, a secondary groove may adjoin an axial side or both axial sides of the main groove. A deformable material ring having its own radially outwardly facing deformation remitting groove may be disposed in the main groove in the outer ring. The deformable ring protrudes radially out of the main groove to be deformed by the internal wall of the housing around the bearing.

Abstract: A sealing and bearing arrangement in electric toothbrushes is characterized by a sealing ring (9) for preventing foreign material from penetrating into a bearing space, the ring being arranged around a nose pin (1) in the open end (7) of a casing (5), which coaxially surrounds the nose pin (1), and being immobile when the nose pin (1) rotates; an annular supporting plate (10) which is provided close to and inwardly of the sealing ring (9) and which is immobile when the nose pin (1) rotates; and bearing balls (11) provided in two races, one on each side of a thickened portion (4) of the central member of the nose pin (1), for taking up forces in all directions.

Abstract: An axle structure for driving a bicycle includes an axle rotatably mounted in an axle housing which is rigidly connected within a shell to transfer forces received from a pair of cranks to a driven chain wheel to drive the bicycle forward.

Abstract: A two row, angular contact, separable race ring wheel bearing is given increased load capacity by maximizing the sizes of the two ball rows within the available annular envelope available between the inner spindle and outer hub. The two pathways for the outboard ball row, the first installed ball row, are ground right out to the radial limits of the envelope, allowing the diameter of the outboard ball row to be as large as possible, and larger than the inboard ball row. The larger diameter of the one ball row increases load capacity with no other significant change in the design of the bearing.

Abstract: In a mounting for disk spindles, an embodiment is provided in which, despite simple construction and simple assembly of the bearing, a high degree of precision is obtained. The angle ball bearings in O-arrangement have outer rings (4) the race (4') of which has, in longitudinal section, a radius the center point (7) of which lies on the axis of rotation (8) of the inner races (2).

Abstract: A two row angular-contact roller bearing having on undivided bearing ring and one axially divided bearing ring with a respective row of rolling elements rolling over each of the axial sections of the divided ring. The respective comb separator for each of the rows of rolling elements has an annular collar that projects axially toward the annular collar on the other separator. One separator annular collar is radially inclined inwardly and the other separator collar is radially inclined outwardly. The collars are so placed as to interfere, and they are sufficiently flexible as to deform and upon the collars being pushed together for causing the collars to loosely interlock sufficiently to enable one row of rolling elements and their separator to rotate with respect to the other. Elevations defined on the divided race ring sections support the axially inward sides of the rows of rolling elements. A shoulder on the divided race ring section engages the axially outward side of the row of rolling elements.

Abstract: A double row, angular contact ball bearing comprised of an integral inner race ring and an integral outer race ring, the outer race ring having at least one circumferential depression between the rows of balls and the inner race ring having a circumferentially radially extending end member axially outside each row of balls. The present invention also relates to a method of manufacturing double row, angular contact ball bearings by shaping sheet metal or tubular work pieces to finished inner or outer race rings by rolling, pressing or deep drawing, introducing rows of balls between the race rings, shaping the race rings to final form by rolling or pressing, and rolling the rows of balls constantly about the circumferential periphery of the inner race ring during the rolling or pressing of the race rings.

Abstract: A hub of a bicycle including a hub shell having a tapered surface formed in each end, an axle disposed in the hub shell, two bearings engaged on the axle, a tube engaged on the bearings and having a cone formed on one end, the cone having a tapered surface engaged with one of the tapered surfaces of the hub shell, and a cap threadedly engaged on the other end of the tube and including a tapered surface for engagement with the other tapered surface of the hub shell, whereby, the hub shell is clamped between the cone and the cap.

Abstract: To achieve a dependable axial fastening of a flat cylindrical outer surface of the outer ring of a double row angular anti-friction bearing inside the smooth internal surface of the bore of the external housing in which the outer ring is disposed, the races for the bearing rolling elements, and which are either balls or tapered rollers, are oriented so that the resultant lines of bearing force extend from the rolling elements, converge and intersect the outer surface of the outer ring. The resultant lines of force converge at or radially outward of the outer surface of the outer ring. A respective pair of interruptions, in the form of annular grooves around the outer surface of the outer ring, and having sharp transition edges with the outer surface of the outer ring, are defined at both axial sides of and near to the intersection of a resultant line of force with the outer surface of the outer ring.

Abstract: A hub clutch device for connecting and disconnecting an axle and a wheel in a part time four-wheel drive vehicle is disclosed closed. The hub clutch device is provided with an outer race secured to a vehicle body, an inner race having a flange portion secured to the wheel and a hub portion provided with a gear portion at a peripheral inner portion, defining a fluid passage with the axle, and a roller member positioned between the outer race and the inner race. A movable wall is positioned inside of the hub portion. The movable wall defines a sealed chamber with the hub portion and is movable in an axial direction of the axle. The sealed chamber communicates with the fluid passage. A sliding gear always engages the gear portion of the hub portion and is axially movable according to the motion of the movable wall to engage a gear part of the axle to connect the axle with the wheel in a rotational direction.

Abstract: A bottom bracket bearing unit for a bicycle or the like has an installation unit formed by a long sleeve and short sleeve of synthetic resin formed directly with race grooves for a pair of double bearings which have steel balls riding between the grooves of the sleeves and the grooves of the pedal-crnak axle or shaft which is received in these sleeves.

Abstract: A crankshaft including an eccentric cranked section which is divided into two parts. A unitary inner ring is force fit over the outer surfaces of both parts of the cranked section of the crankshaft. At each axial end of the inner ring, a groove is opposite a hole in the shaft. A connecting pin extends between them. This prevents rotation of the inner ring around the cranked section of the shaft. For strengthening the cranked section, there is a continuous bore hole through both of its parts and a connecting screw extending through the bore hole. A support for the connecting rod engages the crankshaft cranked section at the bearing inner ring.

Abstract: A radial ball bearing has a pair of bearing rings each of which has at least one raceway groove with a certain radius of curvature in an axial direction and a shoulder of the raceway groove. The raceway groove of one of the bearing rings is opposed to the raceway groove of the other bearing ring, and a plurality of balls are rotatably provided between the opposite raceway grooves of the bearing rings. Each of the bearing rings has a curved portion with a radius of curvature in the axial direction which is equal to or greater than that of the raceway groove between the raceway groove and the shoulder of the raceway groove. The curved portion extends from a point within an ellipse of contact produced at the bearing ring by a predetermined axial load and is smoothly continuous from the raceway groove, the point making an inflection point between the raceway groove and the curved portion.

Abstract: This invention relates to a rotary structure adapted to be used as a spindle unit for a miniature motor or miniature rotor or as a tape guide roller for a VTR. In the structure of the rotary mechanism, instead of a conventional expensive radial ball bearing, a substantially V-shaped groove is formed on a shaft itself so as to hold balls provided between this groove and the tapered surface or concave spherical ball receiving surface of an outer race provided around the groove.

Abstract: A rotary structure adapted to be used as a spindle unit for a miniature motor or miniature rotor or as a tape guide roller for a VTR. In the structure of the rotary mechanism, instead of a conventional expensive radial ball bearings, a substantially V-shaped groove is formed in the shaft itself so as to hold balls between this groove and the tapered surface or concave spherical ball receiving surface of an outer race provided around the groove.

Abstract: A rotational bearing arrangement for high speeds of rotation comprises a casing and a shaft mounted therein at a first ball bearing and a second ball bearing. At least the first ball bearing is a radial shoulder ball bearing. The first ball bearing has a first track formed on the shaft and a first outer race and the second ball bearing has a second track formed on the shaft and a second outer race. One coacting track and one outer race in combination form the ways for the balls of each associated ball bearing. The outer races are disposed in hollow substantially cylindrical seats formed by the casing. The first outer race when secured in its assembled state is disposed in a seat which constitutes a sliding seat, the seat dimensions being such that the outer race when introduced into but not secured in the seat can be reciprocated substantially effortlessly in axial direction.

Abstract: A wheel mount for motor vehicles or the like. An axially inner hub having an axle journal which projects axially outwardly and a first row of ball bearings rolling about the axle journal. A separate inner ring axially outward of the axle journal and having a second row of ball bearings rolling about it. The separate inner ring having a radially widened region on the axially outward side. The internal bore of the separate inner ring progressing from a radially smaller diameter at the widened region over a plurality of steps which have gradually greater inner diameters. The axle journal on the hub extends through the inner ring and has correspondingly shaped steps. The inner ring is force fit over the axle journal. A radially outwardly bulging bead presses on the axially outward end of the separate inner ring and presses that ring against a shoulder of the axle journal.

Abstract: A spindle unit adapted to be used for miniature motors and miniature rotors.

Abstract: This invention relates to a rotary structure adapted to be used for a spindle unit of a miniature motor or miniature rotor or for a tape guide roller of a VTR or the like. In the structure of the rotary mechanism, instead of the conventional expensive radial ball bearings, recessed step parts are formed in the shaft itself and balls are held by and between the recessed step parts and ball receiving surfaces formed as tapered surfaces surfaces on outer races provided around the periphery of the shaft.

Abstract: A ball bearing having an inner ring, a pair of outer rings, balls interposed therebetween, and a retainer for keeping the balls spaced apart from one another. The outer rings each have a straight portion and an arcuate portion integral with the straight portion. The outer rings have their opposite end faces butting together. The arcuate portion has such a curvature as to conform to the contour of the balls. To the arcuate portion of each outer ring is attached a seal member made of a resilient material and integrally formed over its entire peripheral length with lip portions kept in sealing contact with the inner ring.

Abstract: A manually controlled ball is rotatable in any direction at variable speeds to operate a pair of perpendicular rotatable shafts. Each shaft is rotated at a speed of and direction dependent upon the direction and speed of rotation of the manually operated ball. An encoder disk is mounted on each shaft. The direction and speed of the disk rotation is translated into electrical signals.

Abstract: An improved bearing device for use in a spindle motor for driving computer hard disks is disclosed. The device includes a shaft, bearings supporting the shaft, and a bearing holder for holding the bearings. The bearing holder is made of a magnetic material. The shaft, the bearings, and the bearing holder are made of materials having substantially the same thermal expansion coefficient.

Abstract: A bearing assembly supporting a shaft for rotation about its longitudinal axis comprising, a support, at least three outer races, a plurality of rolling elements, and at least three inner races. Each of the outer races comprises a circular inner surface of a respective ring member. The inner races comprise respective circular outer surfaces in the shaft which are concentric and disposed laterally of one another along the longitudinal axis. The ring members are disposed opposite to respective ones of the inner races to form laterally disposed annular spaces in which plural rolling elements are located. One ring member is arranged to be adjustably moved by a spring inward radially with respect to the axis from a first point on the circumference thereof to take up the clearances at that point.

Abstract: A high precision, two-row ball bearing wherein the inner races of the two rows are worked into the shaft and there are respective outer rings around the rows of balls. A spacer bushing is axially disposed between the outer rings. The spacer bushing is of a single piece with an axial slot extending along its length. The slot has a width approximately equal to the diameter of the shaft. The center of the diameter of the bore of the spacer bushing is offset from the center point of the diameter of the external periphery of the spacer bushing, whereby the spacer bushing is radially thinnest opposite the axial slot and thickens toward the slot for balancing the mass of the spacer bushing with the material removed from the slot. A housing bushing surrounds the spacer bushing and the outer rings.

Abstract: A roller bearing assembly with two rows of rolling elements includes a first ring formed in one piece to have two raceways and two independent rings each having one raceway, a device for maintaining the relative positions of the rolling elements between the rings and a device for fixing the two independent rings axially to one another. The relative positions of at least some of the rolling elements are maintained by two parts of a retention device which includes, before the bearing is assembled, one or more connecting zones in a relatively weakened condition so that they will break during assembly of the rolling bearing assembly.

Abstract: A double-row, angular-contact ball bearing unit includes double sided cage, a plurality of balls maintained in first and second circular arrays by the cage and disposed between a one piece outer ring having two races and an inner ring formed of two side by side sections, each having an individual race. Angled deflectible locking fingers extend inwardly from the cage into a locking groove in the inner ring section for the first array at a location between the arrays of balls, and this section extends sideways into the region of the second array. The outer ring is undercut from the outer race having the second array to the side of the outer ring that is remote from the first array. The cage side for the first array is of the comb-type and the cage side for the second array is of the window-type.

Abstract: A bearing system for a high-speed, rotating shaft (20) includes an outer race (12) adapted to be rotatable in its machine support and ( 32) to carry a rolling bearing (16), such as a ball bearing, at one end and further includes a floating sleeve bearing (14) at the other end. The outer race of the system can be adapted to rotate on a film of lubricant at a speed less than one-third, and preferably about one-tenth, that of the rotating shaft. The bearing system can include thrust-bearing surfaces (12c, 12d) at one end of the outer race and surfaces to permit lubrication of the sleeve and rolling bearings. The floating sleeve bearing is free to rotate at speeds of about one-half the speed of the rotating shaft. The system thus can provide very low bearing losses and a long bearing life.

Abstract: The disclosure concerns accurate axial and radial fastening of the bearings of, for instance, a bicycle pedal crank. An intermediate sleeve of deformable material is arranged between the outer race of the bearing on the shaft and the housing for the pedal crank. There is underdimensioning between the intermediate sleeve and the outer race, on the one hand, and the housing borehole on the other hand, and the outer race having teeth.

Abstract: A motor spindle for magnetic disc storage drives includes an outer rotor connected to an inner shaft which is rotatably mounted by an integrated bearing including rolling elements, such as balls, which run in inner and outer races, the outer race being formed in the stator bushing and the inner race being formed in the shaft.

Abstract: The disclosure concerns a two-row angular-contact ball bearing with axially spaced apart inner races defined on a shaft and outer rings with outer races disposed around the inner races. The outer rings are held apart by a bushing, and a spring inside the bushing presses one outer ring away from the other. At each outer ring is a respective cage for the bearing balls and the cage has a T-shaped cross section with the leg of the T being the prongs between adjacent balls and the cross bar of the T resting on one radial side on a collar defined on the shaft and at the other radial side which is radially outwardly of the collar, on the end of the respective outer ring, and with the cage resting there, the balls are in the inner race. The cage includes elements surrounding the balls and defining pockets and at least some of the sections of the pockets are resilient to expand as the balls are moved over the shaft toward the race and to return to shape after the balls have entered the inner race.

Abstract: A rolling bearing unit with a pair of axially spaced grooves in the shaft, rolling bearing elements in the grooves, sheet metal outer race elements secured in a housing, and an adjusting ring for driving one of the outer race elements axially relative to the housing and to the other race element.

Abstract: A two-row angular contact ball bearing with two axially spaced inner races arranged in the shaft and outer rings with outer races disposed around the inner races. The outer rings are held apart by a bushing. One end of the bushing rests against one of the outer rings. The other end of the bushing has a radially enlarged end section which extends over the other outer ring and defines a free space between the other outer ring and a shoulder at the beginning of the enlarged section of the bushing. An annular, conical spring is in the free space between the outer ring and the shoulder. A cutout in the bushing enables installation of hardening material in the free space radially outside the annular spring for rigidifying the spacing of the bearings once the shaft carrying the bearings has been installed in a final installation.

Abstract: A bearing assembly particularly for the wheel of a motor vehicle wherein a wheel hub and a part of a universal joint are arranged in torque-transmitting engagement, the assembly including an inner race member formed by at least one of the wheel hub and the part of the universal joint in torque-transmitting engagement therewith and an outer race member adapted to be connected with the wheel carrier of the motor vehicle. First and second inner bearing tracks are formed in the inner race member and first and second outer bearing tracks are formed in the outer race member. A first and a second plurality of rolling elements are disposed in operative load-bearing engagement between the first inner and outer bearing tracks and the second inner and outer bearing tracks, respectively, and the outer race member is formed in two separate parts, one part having the first outer bearing track therein and the other part having the second outer bearing track therein.