Product Description:

The MDD115C-N-020-N2M-180PB0 is a permanent-magnet servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts regulated DC bus energy into controlled rotation for indexers, gantries, and other automation axes. The C length code, frame size 115, and standard housing outline let the unit fit existing Rexroth mounting patterns without adapter plates. Its permanent-magnet design supports precise response during positioning and speed-regulated operation. This model is supplied without a blocking brake, so position retention during power loss must be handled by the drive or an external clamp.

The rotor is balanced to the standard grade for typical industrial operation. The flange includes a centering recess of 180 mm that aligns the shaft to the load coupling. Power and feedback conductors exit on side B, which can simplify cable routing when the motor is mounted at the rear of a machine bed. The motor delivers a continuous standstill torque of 47.0 Nm, which is the torque it can hold at zero speed without thermal overload. Closed-loop motion control uses signals from an integrated multi-turn absolute encoder, and nominal speed reaches 2000 rpm. This feedback arrangement gives the drive immediate rotor position information for controlled startup and axis synchronization.

The molded power and feedback connector mates with Rexroth hybrid cables and carries position data as Digital servo feedback (DSF), so the drive can commutate the motor without resolver wiring. Using one hybrid interface for power and feedback helps reduce separate cable runs at the motor. A hardened steel shaft with a keyway supports positive torque transmission, and the front bearing area is protected with a shaft seal to help keep out coolant or oil. The closed opposite face helps limit contamination at the non-drive end. Multi-turn position storage in the encoder allows the controller to restore axis position after power is reapplied.