Product Description:

The MHD071B-035-NG1-UN is a synchronous servo motor produced by Bosch Rexroth Indramat within the MHD Synchronous Motors series. As a compact size-071 unit with length code B, the motor supplies rotary power to indexing tables, gantry axes, and similar equipment that depend on precise velocity and torque control. Integration with Indramat drive controllers allows rapid servo loops, making the device suitable for general-purpose industrial automation.

The mechanical interface starts with a centering diameter of 95 mm, which aligns the stator housing to reducer flanges without radial misalignment. Mounted via a 115 mm square flange, the motor can be secured directly to standard machine frames. Under continuous stall, it delivers 8.0 Nm of torque, providing stable holding force for static or low-speed duties while staying within thermal limits set by winding code 035. Position and speed data are returned through a Digital servo feedback (HSF) encoder, enabling high-resolution drive regulation. For vertical axes or emergency stops, the integrated brake supplies 5.0 Nm of torque; this mechanical clamp holds the load when power is removed instead of relying on current in the windings.

Thermal management relies on liquid cooling, allowing higher power density than air-cooled housings and reducing cabinet heat. The power connector can be oriented because the feed-through is turnable within a 270° range, so cable runs can be dressed toward the cabinet, toward the floor, or laterally without strain relief changes. Separate power and feedback connectors simplify service and support EMC compliance. A plain shaft transmits torque directly to couplings or pulleys without a keyway, minimizing backlash in precision drives. Motion control uses relative position detection, so absolute machine coordinates are established during homing after every power cycle.