Product Description:

The MKD041B-058-KG0-KN is a servo motor produced by Bosch Rexroth Indramat and supplied within the MKD Synchronous Motors series. It delivers closed-loop rotary motion for industrial automation axes, providing the drive torque and position accuracy required in machine tools, printing lines, and packaging modules. Motor size 041, length code B, and winding code 058 complete the electrical match to standard Rexroth servo drives.

This model mounts to an 82 mm square flange whose centering pilot measures 50 mm, allowing repeatable alignment against gearboxes or mechanical frames. The flange itself is sized at 82 mm, so the motor fits compact machinery envelopes while still maintaining shaft rigidity. At standstill, it can deliver 2.7 Nm of continuous torque for static holding or slow indexing without overheating its windings. The housing is rated IP65, so dust and low-pressure water jets are kept away from internal components. Rotor position is reported by a resolver feedback device built into the motor, and the analog signals provide angle data to the drive for commutation and speed regulation. A shaft seal is present, electrical terminations land in a connection box, and the insulation system meets class F thermal limits.

Cabling exits on side B of the housing, so power and feedback can be routed away from moving links without sharp bends. The rotor is machined as a plain shaft, simplifying direct-coupled couplings where keyways are unnecessary. System positioning repeatability is held within ±8 angular minutes, and absolute multi-turn detection beyond 4 096 revolutions supports homing-free startup. Operation is specified from 0–40 °C, and derating is required above this range to protect the class F insulation system. The unit is supplied without a holding brake, so applications that need power-off locking must use an external mechanical restraining device.