Product Description:

The MKD090B-047-GG0-KN is a synchronous AC servo motor manufactured by Bosch Rexroth Indramat for the MKD Synchronous Motors series. Designed as a rotary actuator for industrial automation, it converts controlled current into predictable torque and speed so packaging stations, material-handling gantries, and print cylinders can position loads accurately. The 090 frame, B-length housing, and 047 winding code support closed-loop operation through integrated resolver signaling. This arrangement helps the motor respond smoothly to changing load demands during indexing, transfer, and coordinated positioning tasks.

A centering diameter of 110 mm guides the housing into machine bores, and the square flange spans 140 mm to distribute clamping force over a wider surface. Continuous torque at standstill is rated at 12.0 Nm, so the motor can maintain load at zero speed within its cooling limits under natural convection. Rotor position is tracked by resolver feedback, which provides stable sine-cosine signals in electrically noisy environments. Power, brake, and sensor leads exit on side B, allowing cable routing to stay on the non-drive end and keeping adjacent machine space less congested. A shaft seal is fitted to help protect the bearings from coolant splash.

Field wiring terminates inside a connection box that provides strain relief and helps protect live terminals from dust. The drive end uses a plain shaft, so keyless hubs can be clamped directly without adding a keyway interface. Because the motor is supplied without a holding brake, vertical axes must rely on external locking hardware or continuous drive torque to prevent back-driving when power is removed. The feedback system supports relative position detection, allowing the control loop to track shaft movement during commanded motion. This feedback mode works well when the axis is referenced by the controller during startup.