Product Description:

The MHD112B-058-NG0-RN servo motor is produced by Bosch Rexroth Indramat within the MHD Synchronous Motors series. Designed for closed-loop position and velocity tasks, it converts drive current into rotary motion so actuators, gantries, or machine-tool spindles hold setpoints under dynamic load. Digital servo feedback and optical position measurement allow the controller to issue high-resolution corrections, keeping the axis synchronized with the overall motion program in automated production lines. This arrangement supports repeatable motion on equipment that must maintain stable response during acceleration, deceleration, and load changes.

It delivers a continuous standstill torque of 28.0 Nm, allowing the shaft to resist external forces without movement while remaining within thermal limits. The housing has an IP65 rating, so dust ingress is prevented and low-pressure water jets do not affect operation. Internal passages support liquid cooling, which removes heat directly from the stator and permits higher duty cycles than air-cooled designs. The motor has a centering diameter of 130 mm and a flange square of 192 mm, aligning it with planetary gearboxes or rigid machine frames. Power conductors exit to the right through an axial connector, which simplifies cable routing when drives are stacked side by side. This cable exit position can also help keep harnesses clear of adjacent mechanical components in compact machine layouts.

The system accuracy is ±0.5 angular minutes, so commanded moves settle with minimal deviation at the load end. Class F insulation tolerates winding temperatures up to 155 °C, which helps protect the winding system even when coolant flow is reduced. The unit operates continuously from 0 to 40 °C ambient and can be stored from -20 °C to +80 °C without performance loss. A plain shaft simplifies coupling to shrink-fit hubs, and a shaft seal is included to help keep lubricant inside the driven assembly when the motor is installed below the coolant circuit. This shaft arrangement suits applications that use clamping elements or other friction-based connections instead of keyed transmission parts.