Product Description:

The MKD090B-047-KG2-KN is a servo motor from Bosch Rexroth Indramat and belongs to the MKD Synchronous Motors series. As a drive element, it converts electrical energy from a compatible Indramat controller into regulated mechanical rotation for positioning and transport axes in automated cells. The motor has size 090 with frame length B, giving it a medium housing that fits compact machinery while supporting repeatable torque and speed during continuous-duty operation. This type of motor is commonly used where the drive must maintain smooth motion through frequent starts, stops, and speed changes.

Mounting interfaces start with a centering register of 110 mm, matched to a flange that spans 140 mm, which helps align the motor on standard IEC adapter plates. Electrical terminations are routed on side B and enter a sealed connection box, simplifying cable routing in enclosed machine spaces. At standstill, the motor delivers 12.0 Nm of continuous torque, which supports static holding and low-speed feed applications without excessive heating. Rotor position is reported through integrated resolver feedback, which provides analog sine-cosine signals for drive commutation in electrically noisy environments and maintains stable feedback during rapid acceleration.

The feedback system also includes an absolute mode that tracks rotation over 4096 revolutions, allowing the controller to resume operation after power cycles without external homing. Mechanical power exits through a plain shaft, and a factory-installed shaft seal helps retain lubricant at the gearbox interface while limiting the entry of airborne coolant near the bearings. Winding code 047 sets the electrical characteristics used by the matching drive for current control and motor sizing. The sealed shaft arrangement is useful in machine areas where light oil mist or airborne coolant may be present during normal operation.