A retainer device for assembly with an associated shaft by an associated expansion device is disclosed which includes a ring body having a first arcuate leg, a second arcuate leg, a first lug is disposed at one end of the first arcuate leg and a second lug is disposed at one end of the second arcuate leg. The enhanced lugs are adapted to receive the associated expansion device when oriented both axially and radially with respect to the associated shaft.

A system for use in providing a load on a bearing mounted to a shaft includes a preload apparatus having a first extension and a second extension engageable with an inner race of the bearing and configured to provide a compressive load to the bearing. The first extension has a first projection and the second extension has a second projection. A stop ring is configured to limit a radially inward movement of the first extension and the second extension toward each other to position the first projection and the second projection relative to the bearing.

A system for use in providing a load on a bearing mounted to a shaft includes a preload apparatus having a first extension and a second extension engageable with an inner race of the bearing and configured to provide a compressive load to the bearing. The first extension has a first projection and the second extension has a second projection. A stop ring is configured to limit a radially inward movement of the first extension and the second extension toward each other to position the first projection and the second projection relative to the bearing.

A permanent connector for making a connection point or for connecting objects together. The connector has a body with first and second ends. A male end is connected to the first end and has a neck portion with a groove. The groove has a base and straight sidewalls extending generally perpendicular to the base. A female end is connected to the second end and has an opening defined by interior walls. A recess is formed in the interior walls with a snap ring mounted in the recess. The snap ring is received within the groove when the male end is inserted into the female end resulting in the male end being permanently connected within the female end.

A C-clip includes a C-shaped clip body and two peripherally open holes. The clip body can be opened and closed elastically. The peripherally open holes are provided on two lateral sides of the clip body respectively and are adjacent to or located at the two ends of the clip body respectively. The peripherally open holes are provided in the clip body and each have a communication opening and a closed end. A wall between the communication opening and the closed end of each peripherally open hole forms a stop edge for preventing a tip of a retaining ring plier from moving out of the peripherally open hole. The outer diameter of the clip body can be changed by applying forces to the clip body via the peripherally open holes respectively. As the clip body does not have any particularly protruding portion, the C-clip can be used in various situations.

A set including a first element with a cylindrical shaped part, a second element having a cylindrical shaped groove with a circular opening in an outer surface of the second element, and a mechanical locking device. The mechanical locking device includes a tongue groove, a displacement groove and a flexible tongue in the displacement groove, and is configured to lock the cylindrical shaped part to the cylindrical shaped groove. The flexible tongue is configured to cooperate with the tongue groove for locking the cylindrical shaped part to the cylindrical shaped groove. The flexible tongue is configured to be reshaped and displaced in the displacement groove during locking, and spring back to a locked position. The flexible tongue is configured to exert a spring force on the tongue groove in the locked position.

A lock nut is useable for setting a bearing to preload or endplay. A plurality of preload markings are circumferentially spaced apart on the nut. The distance between the preload marking corresponding to a preselected amount of preload applied or reduced on said bearing when the nut is (i) tightened to apply a preload force to said bearing or (ii) loosened to reduce a preload force on said bearing, respectively. A plurality of endplay markings are also circumferentially spaced apart on the nut. The distance between the endplay markings, corresponding to a preselected amount of endplay increased or reduced in said bearing when the nut is (i) tightened to reduce endplay on the bearing or (ii) loosened to increase endplay in said bearing. The use of endplay and preload markings enables setting of a bearing on an axle or spindle to either an endplay setting or a preload setting by adjusting the rotation of the lock nut according to the endplay markings or the preload markings, respectively.

A nut includes locking jaws, a floating end of which is actuated by cam profiles inside a rotary actuation ring. The jaws are produced by removing material from the body of the nut, and shift from a locking state to a release state and vice versa by elastic bending deformation. A locking surface on the inside of the jaws has the same thread as the body of the nut.

An internal retaining ring for placement in a bore of an outer component of a rotating assembly comprises a semi-annular body having an outer circumferential surface with a curvature defined about a first center of curvature and radially outward protruding anti-rotation tabs operable for engagement with a corresponding anti-rotation feature of the outer component. An inner circumferential surface of the semi-annular body has radially inward protruding tabs circumferentially spaced apart around the inner circumferential surface. The radially inward protruding tabs have radially inner surfaces concentric with the outer circumferential surface, and recessed portions between the radially inward protruding tabs and having curvatures defined about a second center of curvature, the second center of curvature different from the first center of curvature.

A threaded insert with a replaceable nut element allows a user to replace only the nut element of the threaded insert rather than the entire threaded insert. The threaded insert includes an insertable housing, a replaceable nut, a retaining mechanism, and an attachment mechanism. The insertable housing allows the threaded insert to be engaged within a wall structure and is used to contain the replaceable nut. The replaceable nut allows the threaded insert to be engaged by a fastener such as a screw or bolt. The attachment mechanism allows the replaceable nut to be attached within and detached from the insertable housing. The retaining mechanism further secures the replaceable nut within the insertable housing and also prevents the replaceable nut from rotating within the insertable housing.