MDD021A-N-100-N2K-032MB0
The MDD021A-N-100-N2K-032MB0 is a compact synchronous servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts regulated current from an electronic amplifier into rotary motion for light automation axes, pick-and-place heads, and small tooling spindles used in industrial production lines. Its compact format suits applications where quick response and precise positioning are needed without taking up much installation space. It is intended for controlled motion where repeatable starts, stops, and short travel moves are important to overall machine accuracy.
The motor delivers a continuous standstill torque of 0.15 Nm, allowing steady force production while the rotor is held at zero speed. During motion it reaches a nominal speed of 10000 rpm, which supports rapid indexing tasks without requiring mechanical gearing in every installation. Accurate alignment to the machine plate is provided by a 32 mm centering shoulder on the front flange. Power and feedback cables leave from Side B at the rear of the housing, and the unit uses a plug-in connector for electrical connection. The motor is supplied without a blocking brake, so holding torque must be provided electrically or by an external mechanical lock.
Position sensing is handled by an integrated absolute encoder, and the drive receives signal data through resolver feedback. This feedback arrangement lets the controller track rotor position while supporting stable commutation across the motor speed range. Torque is transferred through a shaft with a keyway, and the compact frame corresponds to size code 021. The A-length housing keeps the motor short, which helps reduce inertia and supports fast acceleration. The motor has a single shaft end and no shaft seal, so it should be mounted where lubricants and coolant spray are not present. Standard housing execution and balancing help limit vibration during high-speed operation.
