A retaining keeper assembly for a hoisting device. A shank has a plurality of circumferential grooves perpendicular to an axis of the shank. A thrust bearing surrounds the shank and is supported by the hoisting device. A split retaining collar having a plurality of interior circular protrusions mates with the circumferential grooves in the shank to prevent axial movement of the shank. A cylindrical retaining collar cover having a closed top and an open bottom encloses the retaining collar, the cover having an inner diameter slightly larger than an outer diameter of the retaining collar. A fastener mechanism fastens the retaining collar cover to the split retaining collar and to the shank.
A swivel assembly for connecting a load such as a television receiver to a support includes a swivel stem having a cylindrical head, a reduced diameter cylindrical middle body, and a mounting base. The stem is supported by a retainer assembly including thrust washers engaging the top and the bottom of head. An adjustment is provided for maintaining the thrust washers securely engaged with the head of the stem.
A hub for removable mounting onto a shaft uses a locking ring having an inner diameter that surrounds the shaft and frictionally engages the shaft to fix the locking ring against the shaft axially and rotationally, a first annular hub component that is mounted to the locking ring, and a second annular hub component that is mounted to the first annular hub component.
