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.