MHD112C-058-PG3-BN

The MHD112C-058-PG3-BN is a servo motor produced by Bosch Rexroth Indramat within the MHD Synchronous Motors series. It serves as a rotary actuator that turns drive commands into precisely controlled shaft motion for positioning, feeding, and processing axes in CNC machinery and automated assembly lines. By combining a compact 112-frame construction with integrated feedback electronics and a liquid-cooled housing, the unit supports continuous high-power operation where thermal stability and position accuracy are critical.

At the mechanical interface, a centering diameter of 130 mm mates to a 192 mm square flange, giving the motor a rigid mounting surface that keeps the rotor coaxial with driven equipment. Under rated conditions it delivers 38.0 Nm of continuous torque at standstill, a figure used to size gear ratios and current limits in the drive controller. Heat produced at this operating point is removed through liquid cooling, allowing the windings to remain within insulation limits during extended duty cycles. Position and speed loops are supported by digital servo feedback from an integrated encoder, enabling tight motion control in dynamic contouring applications.

In the 112 frame size, additional characteristics complete the specification. Motor length code C and winding code 058 define the active stack and electrical parameters, while the built-in holding brake furnishes 70.0 Nm of static torque to secure vertical loads when power is removed. The drive end uses a plain shaft protected by a shaft seal to prevent lubricant loss and block contaminant entry. Multi-turn feedback is provided by absolute (>4096 revolutions) detection, eliminating the need for homing after shutdowns. Power is supplied through an output connector that is oriented toward side B, simplifying cable routing inside compact control cabinets.