Product Description:

The MKD041B-058-KG1-KN is a servo motor produced by Bosch Rexroth Indramat within the MKD Synchronous Motors series. Designed as a compact rotary actuator, it converts controlled electrical energy into mechanical torque for indexing tables, packaging axes, and other closed-loop automation tasks. Its mechanical interface suits small machinery footprints, and the integrated feedback circuit allows pairing with Indramat digital drive controllers for real-time velocity and position loops. Because the unit delivers continuous torque from zero speed, it supports precise motion profiles under varying process loads and frequent start-stop cycles.

The motor mounts to a machine frame through a centering pilot of 50 mm, while an IEC square flange that measures 82 mm on each side helps maintain repeatable alignment with gearboxes or couplings. Power and feedback conductors exit on side B, and the sealed connection box provides space for EMC-compliant terminations without external junctions. Under continuous load, the stator can supply 2.7 Nm of standstill torque for low-speed contouring and steady holding duties. The plain shaft transfers torque directly to the driven element without a keyway, which helps reduce play at the mechanical interface.

Dynamic positioning is supported by resolver feedback, which supplies analog sine-cosine signals to the drive for rotor position evaluation. The electronics convert that signal into an absolute position reference beyond 4096 revolutions, which reduces the need for a homing move after power cycles. When motion stops, an internal brake applies 2.2 Nm of static torque to hold vertical or high-inertia loads in place. Thermal behavior and resistance values correspond to winding code 058, so the matching drive can apply appropriate current limits during operation. A shaft seal is fitted to help maintain ingress protection, and the B-length housing keeps overall mass low for rapid acceleration profiles.