Product Description:

The MKD112B-073-GP1-BN is a servo motor manufactured by Bosch Rexroth Indramat for the MKD Synchronous Motors series. Intended for closed-loop automation axes, it converts inverter output into precise rotary motion for tooling, handling, and packaging equipment. The motor uses frame size 112 with medium length code B, giving a balanced power-to-weight ratio for mid-frame installations. Power and feedback leads exit on side B through an output connector, and relative position data is returned to the drive by resolver feedback for incremental positioning. Its synchronous design allows the connected drive to regulate torque quickly during starts, stops, and speed changes.

A continuous standstill torque of 28.0 Nm represents the thermal steady-state load the unit can withstand without additional cooling. The mounting interface follows a 192 mm flange size and a 130 mm centering diameter, enabling direct coupling to gearboxes or machine frames with low radial runout. These mounting dimensions let the motor seat accurately against mating surfaces and support consistent shaft alignment. Protection is rated at IP65, so dust and low-pressure water jets cannot reach live parts, while the windings use F-class insulation that tolerates temperatures up to 155 °C. A radial shaft seal helps preserve the ingress rating and reduces lubricant loss during continuous duty.

For static axis retention, the integrated holding brake supplies 22 Nm of clamp force whenever power is removed, preventing vertical loads from drifting. The drive end features a shaft with keyway, allowing rapid alignment with standard hubs instead of relying only on friction fittings. Operation is specified within a 0–40 °C ambient range, which matches common machine and cabinet conditions while helping protect bearing grease viscosity. During commanded moves, the resolver-drive loop achieves a system precision of ±8 angular minutes, which is suitable for indexing, pick-and-place work, and synchronized conveyor applications that require repeatable motion. The brake and keyed shaft make the motor practical for axes that must hold position at rest and then transmit torque cleanly when motion resumes.