Chains, Sprockets & Gears Manufacturers
- Acme
- Allied Locke
- Berg
- Boston
- Brewton
- Browning
- Campbell
- Daido
- Diamond Chain Co.
- Drives, Inc.
- G&G Manufacturing
- Globe Gear
- Hitachi Maxco
- Jeffery
- Link-Belt
- Linn Gear Co.
- Martin Sprocket
- Moline
- Morse
- Ramsey
- Renold Jeffery
- Rexnord
- UST
- Union
- Webster Industries