Product Description:

The MKD041B-143-GP1-KN is a servo motor produced by Bosch Rexroth Indramat and belongs to the MKD Synchronous Motors series. This model integrates a resolver for position feedback and carries winding code 143. Delivered as a compact rotary actuator, it supplies closed-loop speed and position control to pick-and-place heads, tool spindles, and indexing tables. Its servo construction allows direct coupling to gear stages or loads, and the sealed housing supports installation beside machine axes in industrial environments.

Its mechanical interface follows a square flange pattern with a face dimension of 82 mm, and concentric alignment is set by a 50 mm centering diameter, simplifying repeatable mounting to gearboxes or machine frames. At locked rotor, the motor can deliver a continuous torque of 2.7 Nm, giving actuators enough holding force for precise dwell phases without thermal derating. The stator windings are insulated to class F limits, and an integrated connection box on Side B keeps power and feedback terminations shielded from contamination. Position feedback is generated by resolver feedback, so the drive can determine absolute angle after a reference move, and the overall housing achieves an IP65 protection rating that seals the windings against dust and water jets during washdown maintenance.

The motor is supplied with a permanent-magnet holding brake that clamps the shaft with 2.2 Nm when power is removed, preventing drift on vertical or suspended loads. Torque is transmitted by a shaft with keyway, and a shaft seal behind the collar blocks lubricant from migrating into the resolver chamber. Closed-loop motion quality is enhanced by a system precision of ±8 angular minutes, giving adequate accuracy for mid-range positioning tasks without external encoders. Thermal suitability is limited to a 0–40 °C ambient window, and the B-length frame together with the 041 stator size keeps mass low while maintaining adequate magnetic cross-section for dynamic moves.