Qinchuan high-precision drive, a national manufacturing single-champion, offers BX RV reducers in E/C/F/N/integrated/GS series with 50+ sizes and 200+ ratios; rated torque 98 Nm (BX10C) to 265 Nm (BX27C), up to BX700F (~6.9 kNm).
COMPONENT
Nabtesco (Japan) invented and dominates the RV cycloidal reducer used in industrial robots. The RV series uses two-stage reduction (involute center gear plus cycloidal pin stage) with an integrated angular ball main bearing: RV-E spans sizes 6E-450E and RV-C 10C-500C, rated torque 72-4,410 N·m (RV-E) and 98-4,900 N·m (RV-C) at 15 r/min output, ratios 31-192, lost motion under 1 arcmin and shock capacity of 5x rated torque, the de-facto standard for heavy industrial robot joints.