This U.S. industry comprises establishments primarily engaged in manufacturing mechanical power transmission equipment (except motor vehicle and aircraft), such as plain bearings, clutches (except motor vehicle and electromagnetic industrial control), couplings, joints, and drive chains. Establishments primarily engaged in--

Including:

• Ball joints (except aircraft, motor vehicle) manufacturing
• Bearings, plain (except internal combustion engine), manufacturing
• Bushings, plain (except internal combustion engine), manufacturing
• Chains, power transmission, manufacturing
• Collars, shaft for power transmission equipment, manufacturing
• Couplings, mechanical power transmission, manufacturing
• Drive chains, bicycle and motorcycle, manufacturing
• Joints, swivel (except aircraft, motor vehicle), manufacturing
• Joints, universal (except aircraft, motor vehicle), manufacturing
• Pulleys, power transmission, manufacturing
• Railroad car journal bearings, plain, manufacturing
• Sheaves, mechanical power transmission, manufacturing
• Sprockets, power transmission equipment, manufacturing
• Universal joints (except aircraft, motor vehicle) manufacturing