BPx (BPE / BPN / BPV) planetary gearboxes for servo motors, output torque up to 1800 N·m

Technical specifications

Specifications are taken from the manufacturer’s technical documentation. Updated 11/10/2026.

Description

An almost unlimited number of combinations with DSC, DSD2, DSH1 and DSP1 motors gives many gear ratio steps, so the motor and gearbox pair is selected exactly for the axis. The economy series BPE is intended for simple tasks without strict requirements for backlash, torque and speed. There are versions BPE, BPEA angular and BPEF flange, and sizes BPE 20 … BPE 80 give an output torque from 5 to 800 N·m. Input speed reaches 18 000 rpm for the BPE 20 and 6500 rpm for the large sizes, ratio 3–512, and for the BPE 80 up to 64. The precision series BPN is designed for high torque and high torsional stiffness. Versions BPN, BPNA and BPNF, torque from 22–27 to 1800 N·m, input speed 14 000–16 000 rpm, ratio 3–100. The velocity series BPV has helical planets and withstands significant axial and radial forces. Versions BPV 35…95 and BPVF 32…100 give 40–950 N·m at an input speed up to 14 000 rpm. All values are maximum.

How to choose

Start with torque and the backlash requirement. For simple axes with a moderate load the BPE is enough, and its range is the widest in ratios, 3–512. If high torque up to 1800 N·m and torsional stiffness are needed, take the BPN. For high-speed DSP and DSC motors, where stiffness under axial and radial forces matters, the BPV fits well. The angular version is chosen when the motor must stand perpendicular to the axis, and the flange version for standard flanges.