摘要:
A roller retention mechanism for a roller bearing includes at least three portions (26) each extending into contact with two adjoining rollers (14). The rollers are wedged appart circumferentially. The «keystoning» effect presses all the rollers against the wall of the bore (12) in the roller assembly with sufficient force to prevent axial movement of the rollers and to radially retain the rollers in assembly. The roller retention mechanism is constructed and arranged to be subsequently pushed axially from the roller assembly.
摘要:
The invention provides a roller bearing which has a plurality of rollers each in contact with a discontinuous annular race. The race (10), which is made of a formed up sheet metal strip, has interfitting and interlocking circumferential ends on its periphery. The first interfitting end has a longitudinal centrally located head (19), a neck (22), and a pair of shoulders (20). Each shoulder (20) extends from the neck (22) to a longitudinal side of the annular race (10). The other interfitting end is complementarily shaped to receive the first interfitting end.
摘要:
For use more particularly in universal joints, the invention provides a closed end roller bearing (3) of which the cylindrical race wall (43) is closed at one axial end by a centrally recessed end wall (41) provided with a plurality of circularly distributed, upstanding convex projections (46) which are of circular or elliptical shape in plan view, with their major axes (where present) directed radially of the end wall (41). A trunnion (2) of the universal joint (1) is supported by the bearing (3) in a yoke (7) and lubricant stored both in the central recess (42) of the end wall (41) and in a circumferetially directed groove (44) between the end wall (41) and the cylindrical wall (43) is distributed by convex projections (46) between the end wall and the end face of the trunnion as a result of relative rotary oscillatory movement between the two.
摘要:
A flat, thin ring is formed into a modified ring having bridge material between adjacent, initial ball pockets (14). Movable anvils (12) having a rounded surface are positioned within the initial ball pockets and the bridge material is reformed such that a substantially flat bridge is formed between adjacent final ball pockets conforming to more than a 180 degree circumference of the rounded surface. The movable anvils (12) are then moved such that the final ball pockets do not conform to more than a 180 degree circumference of the rounded surface to facilitate removal of the movable anvils (12) from the final ball pockets. A method of assembling a ball bearing assembly is also described.
摘要:
A shaft depressor is used for seating a shaft (15) against a closed, usually curved, portion between first and second sides of a U-shaped socket (10) in a slap yoke of a steering shaft assembly. It is used together with a clamp bolt (20) which extends through a hole (11) in the first side of the socket and fastens to threads at a second parallel side thereof. The shaft depressor consists of a cylindrical body (30) having an inside diameter sized to fit over the clamp bolt, an outside diameter sized to pass through the hole (11) in the first side of the U-shaped socket, and projecting members (32) for pressing the shaft into the closed portion of the socket. The shaft depressor can have a tapered lead (31) at one end for easy insertion through the hole in the first parallel side and the projecting members can be fins (32) projecting radially outwardly from the surface of the cylindrical body. The radially projecting fins may be axially extending ribs, circumferential ribs, cones or a single helical rib on the surface of the cylindrical body (30).
摘要:
A steering column assembly includes two bearing seats (46,48) for angular contact bearings (42,44), each bearing seat being tapered so that the diameter of a bore (52) of a housing (40) for the bearings tapers radially inwardly and a third bearing seat (54) associated with a column shaft (38) is also tapered to seat one of two inner rings (60) of the respective bearings, which are pre-loaded and axially aligned with the bearing seats. This construction eliminates the need for the press fit while still meeting the application requirements. Other designs reduce the rotational effort and torque variation of the system and facilitate assembly. The mating tapers give the bearings freedom to self-align and thereby avoid common "clicking" noise.
摘要:
An angular contact bearing is mounted within a housing (26) and a shaft (24) is positioned within the bearing such that an annular space is provided between the bearing and the shaft. A mounting ring (32) of elastomeric polymer is positioned over the shaft and against a bearing inner ring (34) such that a portion of the mounting ring is between the bearing inner ring and the shaft, centring the shaft within the bearing and reducing radial freeplay. The mounting ring is compressed axially, against the bearing, such that the mounting ring deforms and resiliently spreads radially outwardly and provides a preload on the bearing balls.