Product Description:

The MHD115A-058-NG1-BA is a servo motor manufactured by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It serves as a closed-loop rotary actuator that translates drive commands into accurate torque for positioning tables, packaging axes, or material-handling gantries. A plain shaft allows direct coupling, and the power leads exit on side B through an output connector to simplify cable routing. The motor uses optical measurement for relative position detection, and its encoder sends high-speed feedback to the controller so motion profiles remain synchronized with machine logic.

This model supplies a continuous standstill torque of 32.0 Nm, giving stable force for static loads without overheating. The cast housing has an IP65 rating that blocks dust ingress and low-pressure water jets, permitting installation on open frames or near coolant spray. Position data come from a digital servo feedback (HSF) sensor, which combines high resolution with a compact design. A 180 mm centering diameter aligns the frame to machine plates, while the mounting flange spans 192 mm to match ISO motor pattern 115. Heat is removed by natural convection, avoiding external blowers, and winding code 058 identifies the electrical characteristics used by the matching drive. The shaft seal helps prevent oil or coolant from migrating along the journal.

An integral brake provides up to 70.0 Nm of holding torque, securing vertical axes during power loss. The windings use insulation class F, which permits winding temperatures up to 155 °C, and system accuracy of ± 0.5 angular minutes helps limit cumulative positioning error when multiple axes share a datum. The motor operates reliably in ambient temperatures from 0 to 40 °C, can be stored from −20 to +80 °C, and maintains its ratings up to 1000 m above mean sea level. The motor has size 115 and length A, balancing moment of inertia with footprint for medium-power tasks that require repeatability and low downtime.