Industry: 3566—Speed Changers, Industrial High-Speed Drives, and Gears
Establishments primarily engaged in manufacturing speed changers, industrial high-speed drives, except hydrostatic drives, and gears. Establishments primarily engaged in manufacturing automotive power transmission equipment are classified in Industry 3714; those manufacturing aircraft power transmission equipment are classified in Industry 3728; and those manufacturing industrial hydrostatic drives (transmissions) are classified in Industry 3594.

Drives, high-speed industrial: except hydrostaticReduction gears and gear units for turbines, except automotive and aircraft
Gearmotors (power transmission equipment)Speed changers (power transmission equipment)
Gears, power transmission: except motor vehicle and aircraftSpeed reducers (power transmission equipment)
Reducers, speedTorque converters, except motor vehicle
Codes Titles Number of US Businesses
3566Speed Changers, Drives, and Gears253
356600Speed changers, drives, and gears109
35660000Speed changers, drives, and gears109
356699Speed changers, drives, and gears, nec144
35669901Drives, high speed industrial, except hydrostatic14
35669902Gears, power transmission, except auto93
35669903Reduction gears and gear units for turbines, except auto13
35669904Speed changers (power transmission equipment), except auto11
35669905Torque converters, except auto13