A lock nut system includes a nut threadably engageable with a shaft and a keeper having a projection configured to fit within a slot of the shaft to engage the shaft. A retaining member is formed separate from the keeper and the nut. The retaining member is receivable within a slot of the nut to engage the nut. A portion of the retaining member engages the keeper by extending into a keeper cavity within the keeper. The nut is lockable onto the shaft when the projection of the keeper is fit within the slot and the keeper is abutted and supported by an inner shoulder of the nut and the retaining member engages the nut and the portion of the retaining member extends into the cavity within the keeper.

A pinion needle roller bearing post for use during pinion gear carrier assembly includes a solid cylindrical post having a longitudinal surface wall extending between a first end and a second end. At least one radially recessed channel is disposed in the longitudinal surface and extends substantially between the first end and the second end and a spring biased needle roller is disposed within the at least one radially recessed channel that operates to prevent needle roller bearing skew during pinion gear carrier assembly.

A tool for installing a locking collar on a bearing using an air hammer is provided. The tool includes a first portion having an air hammer coupling portion configured to couple to the air hammer. A torque arm is coupled to the first portion. A collar-engaging portion is coupled to the torque arm and is configured to couple to a locking collar to impart rotational impacts to the locking collar when the air hammer is actuated.

A method for preloading a bearing includes releasably, threadably, and directly attaching an attaching member to a circumferential outside surface of an exposed end of a threaded shaft of an axle or spindle. A frame is axially separated from, and coupled to, the attaching member. A plurality of extensions extends from the frame axially past the attaching member toward the wheel hub assembly. An adjustment mechanism moves the frame and the plurality of extensions axially towards the wheel hub assembly to contact the wheel hub assembly and/or the bearing to apply a preload to the bearing within the wheel hub assembly.

The tool is designed to carried out maintenance operations on a bearing assembly comprising a bushing split into at least two shells; the maintenance tool comprises a device arranged to act on and rotate the bushing shells. In particular, the device comprises a slide and a pin; the slide has a hole transversal to its sliding direction and the pin is slidably mounted inside the hole and protrudes from the hole; in a first operating position the pin acts on a shell and in a second operating position the pin does not act on any shell. The method provides to rotate the bushing shells without rotating the supported shaft, and to carry out maintenance operations on a shell at a time while leaving the shaft supported by the other shell.

A method for preloading a bearing includes releasably, threadably, and directly attaching an attaching member to a circumferential outside surface of an exposed end of a threaded shaft of an axle or spindle. A frame is axially separated from, and coupled to, the attaching member. A plurality of extensions extends from the frame axially past the attaching member toward the wheel hub assembly. An adjustment mechanism moves the frame and the plurality of extensions axially towards the wheel hub assembly to contact the wheel hub assembly and/or the bearing to apply a preload to the bearing within the wheel hub assembly.

A tool for inserting and removing components, in particular bearings, bushes or the like, particularly in the automotive sector, has a spindle, a first sleeve body having a first ramp-form outer circumferential surface and a through-hole, through which the spindle can be axially guided, a second sleeve body having a second ramp-form outer circumferential surface and a through-hole, through which the spindle can be axially guided, and also a first pressure body and a second pressure body.

A method for preloading a bearing includes releasably, threadably, and directly attaching an attaching member to a circumferential outside surface of an exposed end of a threaded shaft of an axle or spindle. A plurality of extensions extends from a frame and is moved axially toward a wheel hub assembly to apply the preload to the bearing in a distal direction past the attaching member toward the wheel hub assembly. The extensions are configured to contact at least one of a wheel hub or a bearing of the wheel hub assembly when the attaching member is directly attached to the threaded shaft. An automated adjustment mechanism is configured to move the frame and the plurality of extensions axially towards the wheel hub assembly to apply a preload to the bearing within the wheel hub assembly.

A roller bearing assembly apparatus is provided that, when assembling the roller bearing, effectively prevents rollers R that are assembled inside an outer ring W from becoming tilted or dropping out from the state immediately after assembly. After the rollers R are aligned into an annular shape by an alignment jig 14, the roller group G aligned in an annular shape is pushed out from the alignment space 26 of the alignment jig 14, and pushed inside a guide hole 39 of an insertion jig 15. As a result, with the diameter of the roller group G being prevented from expanding by the inner-circumferential surface of the guide hole 39, a retaining member 36, the diameter thereof being elastically reduced, is inserted inside the roller group G. After that, a push-out cylinder 38 of the insertion jig 15 is caused to displace in the axial direction, simultaneously pushing the roller group G and the retaining member 36 out from the guide hole 39, and simultaneously assembling the roller group and the retaining member 36 inside the outer ring W.

An assembling device for a bush may include: a bush unit mounted on a part; a connection unit of which the inside is locked and fixed to the bush unit; and a support unit coupled to the connection unit, and supporting the bush unit so as to prevent separation of the bush unit.