R911275392 (MKD090B-085-KP0-AN)

MKD Synchronous Motors

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The Bosch Rexroth MPN R911275392 (MKD090B-085-KP0-AN) is a synchronous servo motor from the MKD series, built according to the B5 configuration per DIN 42950. It features a 140 mm flange, motor length B, and a shaft with keyway and shaft seal. The motor incorporates resolver feedback with integrated absolute position detection for over 4096 revolutions. Continuous standstill torque is specified at 12.0 Nm with a peak torque of 34.7 Nm and a rated speed of 3000 RPM. The winding code is 085, connection direction is Side A (radial power connection), and cooling occurs via natural convection. The unit does not include a holding brake. Installation requires four M10 fixation screws at 51 Nm torque. The motor operates at altitudes up to 1000 m and provides high overload capability with efficient heat dissipation; bearing lifespan is rated at 30,000 hours per DIN ISO 281. Follow manufacturer instructions, particularly regarding O-ring placement and mounting of flange socket covers with the sealing air connector.