Product Description:

The MHD115A-058-NP1-AN is a liquid-cooled servo motor built by Bosch Rexroth Indramat within the MHD Synchronous Motors series. As a rotary drive element, it delivers closed-loop motion for industrial automation axes that demand precise speed and position control during repetitive positioning and synchronized movement. The keyed shaft couples directly to gearboxes, belts, or driven loads, and the built-in holding brake allows the axis to remain fixed whenever power is removed, supporting safety-related stop functions on machinery and preventing unintended movement at standstill.

This model provides a continuous standstill torque of 32.0 Nm, giving machines a stable force reserve for low-speed positioning tasks. Its enclosure carries an IP65 rating, so dust ingress and water jets do not impair operation. Heat is removed through liquid cooling, letting the motor sustain rated output without external airflow. A holding brake torque of 70.0 Nm keeps vertical or overhung loads from drifting when the drive is disabled. Closed-loop accuracy reaches ± 0.5 angular minutes, supporting fine indexing or contouring duties in assembly lines and packaging equipment.

The operating ambient range extends from 0 to 40 °C, while storage is permitted between −20 and 80 °C. A centering diameter of 180 mm and a 192 mm flange simplify alignment with standard machine frames, while motor size 115 and length A set the overall footprint. Position feedback is provided by digital servo feedback (HSF), which uses an optical measurement method and reports relative position data. This feedback method supports accurate rotor monitoring during commanded motion. The stator windings follow code 058 and use class F insulation for 155 °C thermal endurance. Installation is allowed up to 1000 m above mean sea level, and the output power connector is oriented to side A for straightforward cable routing. The motor also has a shaft seal, and the keyed shaft transmits torque without slip.