Product Description:

Bosch Rexroth Indramat manufactures the MDD093A-N-040-N9N-110PS0/S047 in the MDD Synchronous Motors series. The unit is a permanent-magnet servo motor intended for direct connection to digital drive controllers where precise torque and velocity loops are closed electronically. This arrangement allows the drive to manage commutation and motion response directly at the motor, which supports smooth servo operation in coordinated axes. In automated machining centers, material-handling gantries, and tabletop assembly lines, it converts commanded current into proportional mechanical output, allowing position, speed, or force to be regulated by the upstream controller without mechanical gearing.

The motor delivers a continuous standstill torque of 9.2 Nm, which is the load it can hold continuously without excessive winding temperature rise. Its nominal speed of 4000 rpm supports rapid axis moves while maintaining full feedback resolution. A centering diameter of 110 mm aligns the flange accurately to machine frames and helps reduce runout on coupled shafts. The rotor uses standard balancing, so no extra correction is required within the rated operating range. Because the unit is supplied without a blocking brake, any static holding duty must rely on drive torque or an external clamp when power is removed.

The output shaft uses a keyway, providing positive torque transmission to pulleys or couplings and helping prevent slip during acceleration. Contamination ingress is reduced because the front bearing region is built with a shaft seal, which supports service in fine dust or coolant mist environments. The motor has a frame size of 093 and a motor length code of A, which helps when checking mounting depth and available installation space. The housing is standard, so no external cooling jackets or corrosion-resistant coatings are applied at the factory.