Product Description:

The MHD041A-144-NG0-UN belongs to the MHD Synchronous Motors series produced by Bosch Rexroth Indramat. This compact AC servo motor is intended for closed-loop positioning and speed control in automated handling, packaging, and tooling stations. By combining the mechanical interface common to the series with integrated electronic feedback, the unit provides a balanced solution where moderate torque output and a small footprint are required on multi-axis gantries or rotary tables. Its compact format also helps in machine layouts where surrounding guards, transfer hardware, or nearby actuators leave limited installation space.

Mechanically, the motor uses a 50 mm centering diameter and an 82 mm square IEC flange, allowing direct attachment to gearheads or brackets without adapters. With frame length A, it supplies a continuous standstill torque of 1.3 Nm, supporting light to medium loads that need stable holding force during dwell periods. Heat generated in the stator is removed through integrated liquid cooling, so the motor can remain within thermal limits even when installed inside sealed machine enclosures. Electrical terminations are made through power and feedback connectors that can be rotated through 270°, which helps cable routing and reduces strain in tight spaces. A shaft seal helps limit the ingress of cutting fluids or dust during operation.

From a control perspective, the 041 size uses a plain shaft, allowing backlash-free coupling to precision ball screws or belt pulleys. Position data is provided by a digital servo feedback encoder of the HSF class, and the measurement scheme is relative, so the axis requires a reference move after power-up. This feedback arrangement supports stable commutation and repeatable motion during indexing and positioning tasks. The winding identified by code 144 sets the electrical resistance and inductance values expected by the drive controller, which helps support proper current loop tuning. Because the motor is supplied without a holding brake, external locking devices or drive torque must keep the axis stationary when power is removed.