Product Description:

The MDD093D-N-020-N2M-110GR0 is an AC synchronous motor manufactured by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Intended for use with digital drive controllers, the unit converts three-phase stator current into regulated torque for positioning tables, transfer systems, and other motion axes. It is suited for regulated servo applications that require repeatable torque and stable speed control. Its size 093 frame follows IEC mounting norms, while the D length code uses an extended lamination stack to increase thermal capacity without changing the mounting pilot. This allows higher continuous torque in the same mounting envelope.

At standstill, the motor delivers 24.0 Nm of continuous torque, giving ample margin for index tables and presses that must resist load while motionless. When energized, it reaches a nominal speed of 2000 rpm, a rating that matches common 4-pole spindle and conveyor requirements. Accurate seating during assembly is supported by the 110 mm centering diameter, which aligns directly with the machine pilot bore. The rotor is balanced to the standard grade used for the series, which helps keep vibration low across the speed range. Power, feedback, and protective earth conductors exit on the right side through a removable connector, so cable routing remains straightforward.

Position information is supplied by an integrated multi-turn absolute encoder, and that signal is transmitted to the drive as digital servo feedback, allowing the controller to close both torque and position loops with high resolution. Because the unit is supplied without a blocking brake, external holding methods are required for vertical axes that cannot accept back-driving. A plain shaft with a factory-installed shaft seal helps prevent lubricant migration into the stator cavity and supports direct-coupled loads such as helical gearboxes or timing pulleys. The standard housing protects the windings while still allowing natural convection cooling, and the absence of a side B shaft end leaves more space for the encoder within the compact frame.