MDD021B-N-100-N2G-032FB0
The MDD021B-N-100-N2G-032FB0 is a compact synchronous servo motor produced by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Designed for direct coupling to digital drive controllers, it converts commanded current into precise rotary motion for tightly coordinated axes in automated cells. Because of its high base speed, the motor is often selected for miniature ball-screw drives, timing-belt stages, and small indexing tables used in packaging, semiconductor handling, and electronics assembly equipment. Its compact size also suits machine layouts where short drive paths and limited installation space are important.
Its nominal rotor speed reaches 10000 rpm, allowing short cycle times when the drive issues high-frequency commands. At standstill, the motor can deliver 0.30 Nm of continuous torque without exceeding thermal limits. A centering diameter of 32 mm fits precision mounting flanges and helps minimize radial runout. The frame uses the compact 021 size code, which saves space while still providing enough surface area for heat dissipation. Position data is returned to the controller through resolver feedback, giving robust analog angle information that resists electrical noise and supports rapid current, velocity, and position loops.
Power and feedback conductors exit toward the rear because the wiring interface is placed on Side B, and the unit uses a keyed connector for secure cable connection. The rotor transmits torque through a smooth plain shaft, which supports friction-clamp couplings and avoids keyway stress risers. For installations that rely on external locking devices or active drive torque to hold position, the motor is supplied without a blocking brake, which helps reduce overall length and mass. The motor uses standard balancing and a B-length housing, and it has no shaft seal.
