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 hydrostatic | Reduction 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 aircraft | Speed reducers (power transmission equipment) |
| Reducers, speed | Torque converters, except motor vehicle |
| Codes |
Titles | Total Marketable US Businesses |
| 35660000 | Speed changers, drives, and gears | 100 |
| 35669901 | Drives, high speed industrial, except hydrostatic | 9 |
| 35669902 | Gears, power transmission, except auto | 135 |
| 35669903 | Reduction gears and gear units for turbines, except auto | 12 |
| 35669904 | Speed changers (power transmission equipment), except auto | 13 |
| 35669905 | Torque converters, except auto | 12 |
