- Bearings, plain (6)
- Joints and couplings (1)
- Ball joints, except aircraft and auto (1)
- Couplings, shaft: rigid, flexible, universal joint, etc. (4)
- Joints, swivel and universal, except aircraft and auto (1)
- Drive chains, bicycle or motorcycle (1)
- Drives: belt, cable, or rope (1)
- Clutches, except vehicular (4)
- Shafts, flexible (1)
