Product Description:

The MHD112B-035-PP1-BN is a servo motor built by Bosch Rexroth Indramat for the MHD Synchronous Motors series. Intended for closed-loop axis control, the unit combines a keyed shaft with a digital servo feedback encoder that delivers absolute position data beyond 4096 revolutions. That encoder uses an optical measurement method, so fine position increments are captured without mechanical wear. The motor is supplied in size 112 with the B length variant, and its power leads exit on side B through an output connector that simplifies cabinet layout.

At the mechanical interface, the motor develops a continuous standstill torque of 28.0 Nm, which provides the force available to hold or slowly accelerate a load when the rotor is locked. A centering diameter of 130 mm aligns the housing to the mounting face and helps keep radial runout low. The enclosure carries an IP65 rating, preventing dust ingress and water jets from affecting the windings, while the housing’s liquid cooling circuit removes heat directly from the stator so rated torque can be maintained during extended cycles. Operation is permitted within 0 to 40 °C, the winding code 035 sets the electrical constants for this temperature range, and installation is allowed up to 1000 m above mean sea level. Storage between −20 and +80 °C helps preserve materials during non-operational periods.

An integrated brake supplies 22.0 Nm of static torque, preventing motion during power loss without external clamps. Position repeatability is supported by a system accuracy of ± 0.5 angular minutes, which helps the motor return to commanded positions consistently. A flange diameter of 192 mm provides ample bolt spacing to resist bending moments, and the windings are insulated to class F so the copper can tolerate temperatures up to 155 °C. A shaft seal is fitted to block coolant or lubricants from entering the bearing chamber.