Product Description:

The MHD115B-058-NG1-BN is a servo motor produced by Bosch Rexroth Indramat within the MHD Synchronous Motors series. As a rotary actuator for industrial automation, it converts drive commands into mechanical motion while returning relative position data through its digital servo feedback encoder. Position is measured optically, and the motor uses a plain shaft with a shaft seal to help limit particle ingress. Power is connected through a connector on side B, which can help keep cable routing orderly on compact machine layouts. This feedback arrangement supports consistent response during acceleration, deceleration, and short positioning moves.

At standstill the motor delivers 50.0 Nm of continuous torque, which allows it to hold a static load without exceeding thermal limits. Its housing has an IP65 degree of protection, helping keep dust and water jets away from internal parts on open machine frames. Heat is removed by liquid cooling, so an internal jacket transfers thermal energy into the machine coolant circuit during sustained operation. Accurate mounting is supported by a 180 mm centering diameter, and the square flange measures 192 mm across the bolt faces for frame-size compatibility. This layout supports secure seating on the machine face while helping the motor maintain stable thermal behavior during continuous duty.

An integrated holding brake provides 70.0 Nm of static torque to secure vertical or suspended loads when the servo is de-energized. The motor is intended for ambient temperatures from 0 to 40 °C, making it suitable for standard indoor industrial service. Closed-loop accuracy reaches ± 0.5 angular minutes, which supports precise positioning during indexing and repeatable speed changes. Electrical insulation meets Insulation Class F, allowing the windings to tolerate elevated operating temperatures. The combination of optical feedback, sealed shaft output, and brake holding capability suits axes that must stop accurately and remain stable between motion cycles.