Product Description:

The MKD112B-058-KG2-AN is a brushless AC servo motor from Bosch Rexroth Indramat and belongs to the MKD Synchronous Motors series. Designed for precision motion axes in packaging machinery, gantry stages, and transfer lines, the unit converts drive commands into regulated torque for closed-loop automation. Its feedback electronics, thermal class, and mechanical interfaces are matched to Indramat digital drives, allowing compact servo modules to be built without external reduction gearboxes. Because the motor is brushless, it can maintain consistent operation during repeated production use.

The motor attaches to machinery through a 192 mm square flange with a centering diameter of 130 mm to maintain concentric alignment. It has a plain shaft with an integral shaft seal, which helps limit lubricant escape while supporting radial loads. The power and feedback connections are on Side A, so the cables exit on the left when viewed from the load side, and an output connector provides a direct cable interface. With a continuous standstill torque of 28.0 Nm, the motor can hold position during dwell periods without overheating. Insulation rated to Class F allows winding temperatures up to 155 °C under cyclic duty, and the B-length size 112 frame balances inertia and torque density for medium-power servo applications.

Resolver feedback with an integrated encoder supplies absolute position data beyond 4096 revolutions, letting the drive close the velocity loop while achieving system precision of ±8 angular minutes. Absolute feedback also reduces the need for repeated reference searches after power cycling, which helps preserve axis position awareness. The 058 winding code corresponds to the electrical characteristics used with matching Indramat power modules. An enclosure rating of IP65 shields the windings and sensors from dust and water jets. The motor operates in ambient air from 0–40 °C without derating, which supports direct mounting on the machine frame instead of inside a cabinet.