MHD115B-058
The MHD115B-058 is a synchronous drive unit manufactured by Bosch Rexroth Indramat and assigned to the MHD Synchronous Motors series. Designed for integration with digital controllers, the motor converts commanded current into precisely regulated rotation, letting machine axes accelerate, decelerate, and hold position with closed-loop feedback. Its role in industrial automation is to supply repeatable torque for positioning tables, gantry systems, and packaging equipment where accurate motion directly influences process repeatability. Typical applications include indexing tables, palletizers, and automated storage modules that rely on stable positioning during long production runs. This layout supports controlled motion in systems that need steady response during repeated starts, stops, and short positioning moves.
In continuous duty, the motor can exert 50.0 Nm of continuous torque at standstill, so stationary loads remain supported without thermal overload. A centering collar measuring 180 mm aligns the stator with adjacent machine frames, while the square mounting face spans 192 mm to match standard gearbox flanges. Within the manufacturer’s sizing scheme, frame class 115 indicates the motor cross section used for shaft height and bearing selection. These mounting dimensions help the motor fit securely into servo-driven machine assemblies and support accurate alignment between the motor and the driven load. The arrangement is suitable for rigid installations where precise coupling geometry helps maintain smooth motion and repeatable axis response.
Thermal and electrical behavior depends on the length stack identified by code B and on the coil arrangement marked 058. Together, these values form the motor’s winding code, which is used with matching drive data for electrical operation. Because the unit is classified as a Servo Motor, the drive controller can command rapid reversals and finely modulate torque for tight position control under changing loads. This operating profile suits automated equipment that must maintain consistent axis behavior during acceleration, dwell, and return movement. Closed-loop control also helps the motor respond predictably when the application requires repeated positioning over long cycles.
