Product Description:

Bosch Rexroth Indramat builds the MHD071B-061-NG3-UN in its MHD Synchronous Motors series. The unit is a servo motor intended for closed-loop axis control in automated machine tools, handling equipment, and assembly cells where rapid positioning and repeatable motion are required. In closed-loop service, it works with a compatible drive so the axis can track commanded speed and position changes during repetitive production cycles. A centering pilot of 95 mm aligns the housing concentrically, matching the motor size 071 and length B format.

At standstill the motor delivers 8.0 Nm of continuous torque. A square mounting interface with a 115 mm flange couples directly to gearboxes or frames, and Liquid cooling removes winding heat without external airflow. This cooling arrangement is useful where machine layouts do not provide steady air movement around the motor body. The enclosure is rated IP65, which helps block dust and low-pressure water jets, while the plain shaft is protected by a shaft seal. Motion feedback accuracy reaches ±0.5 angular minutes through an optical measuring method with relative position detection. Insulation materials meet Class F limits, the windings use code 061, and the motor may be installed up to 1000 m above mean sea level. Storage temperatures from -20 °C to +80 °C are tolerated without degradation.

The integrated brake supplies 10.0 Nm of static holding torque to secure vertical loads when power is removed. This arrangement supports axes that must remain in place at standstill instead of drifting under load. Power and feedback connectors can be turned within 270° for flexible cable routing. Ambient operating temperatures between 0 °C and 40 °C help preserve varnish life, and the digital feedback system uses HSF encoder signals for high-speed servo loops.