Product Description:

The MHD115B-058-PP1-BN servo motor is manufactured by Bosch Rexroth Indramat as part of the MHD Synchronous Motors series. It is intended for closed-loop industrial automation where precise torque and speed must be delivered directly to a keyed shaft. The motor has frame size 115 and length B, which helps keep the installation envelope compact. Its power conductors exit on side B through an output connector, which helps keep cable routing orderly.

This model can produce a continuous stall torque of 50.0 Nm, allowing heavy loads to be held without motion while current remains within thermal limits. An enclosure rating of IP65 blocks dust and water jets, permitting installation near process equipment that is cleaned with pressurized fluids. Position concentricity is supported by a 180 mm centering diameter that mates with a precision-machined flange face measuring 192 mm across for repeatable alignment on the mounting surface. Heat generated in the stator windings is removed by liquid cooling, so circulating coolant carries energy away from the housing during continuous operation. The motor uses winding code 058, which matches its electrical characteristics to compatible Rexroth drive controllers.

A holding brake rated for 70.0 Nm engages automatically during power loss to keep the axis stationary, which is useful on vertical or rotary positioning modules. Normal operation is supported within an ambient range of 0 to 40 °C, and insulation class F permits winding temperatures up to 155 °C before degradation occurs. Closed-loop accuracy is ± 0.5 angular minutes, and the optical digital servo feedback reports absolute multi-turn position data for more than 4096 revolutions. A shaft seal is present to help prevent coolant or lubricant ingress, and the maximum installation elevation of 1000 m above mean sea level keeps dielectric, thermal, and braking performance within allowable limits.