- Bearings, bushings, and blocks (7)
- Bearings, plain (5)
- Pillow blocks with plain bearings (1)
- Joints and couplings (1)
- Ball joints, except aircraft and auto (1)
- Couplings, shaft: rigid, flexible, universal joint, etc. (12)
- Joints, swivel and universal, except aircraft and auto (2)
- Drives, chains, and sprockets (3)
- Chain, power transmission (1)
- Sprockets (power transmission equipment) (5)
- Clutches, except vehicular (5)
- Shafts, flexible (1)
