Product Description:

The MHP112B-058-HG1-BNNNNN is a synchronous servo motor built by Bosch Rexroth Indramat and assigned to the MHP Synchronous Motors series. In automated machinery, it acts as the rotary actuator that delivers closed-loop speed and torque so motion axes can hold position, accelerate, or reverse on command from the connected drive controller. This motor type is intended for controlled industrial motion where repeatable response and compact installation are required. Its 112 frame size suits medium-power stations such as indexing tables, feeders, and compact transfer units in manufacturing cells.

During continuous duty, the stator and housing, cooled only by airflow over the surface, can sustain a continuous standstill torque of 28–31 Nm with natural convection cooling. An integrated holding brake rated at 22 Nm locks the rotor when power is removed, helping prevent drift on vertical or suspended loads and improving axis holding at standstill. Position data reaches the drive through an incremental encoder with 2048 increments, enabling fine commutation and stable velocity control during acceleration, reversal, and position correction. The housing has an IP65 protection rating, which helps block dust ingress and low-pressure water jets in typical industrial environments.

The motor operates in ambient temperatures from 0 to +40 °C, so the surrounding air must remain within that range during use. Class F insulation supports winding temperatures up to 155 °C, providing margin for short overload periods without changing the motor's basic cooling method. Power enters through a connector on side B, which helps route cables away from moving machine parts and keeps the connection point on one side of the housing. Winding code 058 corresponds to the electrical resistance and inductance values used by compatible Indramat inverters.