Product Description:

The MHD115C-058-PG0-AN servo motor is produced by Bosch Rexroth Indramat as part of the MHD Synchronous Motors series. Designed for precision motion loops in automated assembly cells, it converts commanded current from a drive into repeatable shaft rotation that positions tooling, conveyors, or gantries under real-time control. Digital servo feedback with an integrated absolute encoder is read optically, allowing the drive to monitor rotor position continuously during speed and position changes. This feedback arrangement supports stable closed-loop operation when the axis must respond quickly to changing motion commands. Because the encoder is integrated into the motor, the feedback path remains compact and does not require a separate external sensing unit.

The motor delivers a continuous standstill torque of 70.0 Nm, allowing heavy loads to be held during powered operation. Thermal energy is removed through liquid cooling, so full torque can be maintained within the specified operating envelope of 0 to 40 °C. The sealed housing has an IP65 protection rating that blocks dust ingress and low-pressure water jets. Windings are insulated to Class F, which permits coil temperatures up to 155 °C during intermittent peaks. This cooling method moves heat away from the housing efficiently and supports continuous use where cabinet airflow alone would be less effective. The unit is supplied without a holding brake, so power-off retention must be provided by drive torque or an external clamp. Power conductors exit toward side A through an output connector, and the plain shaft supports coupling to gearboxes or belt pulleys.

The motor has a centering diameter of 180 mm and a square flange that measures 192 mm across, which supports accurate alignment during installation. The optical feedback system maintains an accuracy of ±0.5 angular minutes, and multi-turn feedback preserves absolute position over more than 4096 revolutions. Absolute position retention reduces the need for a reference return after shutdown or restart. Installation is permitted up to 1000 m above sea level, and the assembly may be stored between -20 °C and +80 °C. The motor has size code 115 and length code C. A shaft seal protects the internal bearings from coolant splash and helps keep contamination away from the bearing area.