High Precision & High rigidity, Gearhead RA series

Compact Drive Unit for Auto Tool Changer

Nabtesco's precision reduction gear is a reduction gear for precise motion control which uses a planocentric reduction gear mechanism. This reduction gear design has advantages in rigidity and resistace against overload with a compact body due to a large number of simultaneously engaged gear teeth. Furthermore, minimal backlash, rotational vibration and low inerita lead to rapid acceleration, smooth
motion and accurate positioning.

Features：
- Case rotation type & shaft rotation type
- Pre-lubricated
- Solid shaft
- High accuracy (backlash < 1arc.min.)
- High shock load resistance (withstands 5 x rated torque)
- Good accel. performance (up to 2.5 x rated torque)

Lineup：
- Rated torque 167 N.m ～ 1,568 N.m
- Allowable starting/stopping torque 412 N.m ～ 3,920 N.m
- Reduction ratio 1/80 ～ 1/171