Product Description:

The MDD021A-N-100-N2K-032FB0 is a small-frame synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Designed as a motor for digital drive controllers, it converts drive commands into precise rotary motion for positioning or speed control tasks in automated machinery and assembly stations. Its slim 021 frame and A length code make it suitable for compact axes where low inertia and rapid acceleration are required. This motor is intended for light-duty axes that benefit from short settling times and accurate response to changing command signals.

A nominal speed of 10,000 rpm supports fast cycle times in pick-and-place feeders. At standstill, it delivers 0.15 Nm of continuous torque, providing holding force for lightweight tooling without overheating. The centering diameter of 32 mm forms the pilot fit that aligns the motor flange with a machine frame and helps keep the assembly concentric. Power and feedback leads exit on side B, so wiring can be routed away from moving parts on the opposite face. A single circular connector carries both supply and signal conductors, reducing cable bulk at the motor.

Balancing is standard to minimize residual vibration at high speed. The motor body uses a standard housing and comes with a plain shaft, so torque is transferred directly to couplings without keyway machining. Motion feedback is provided by an integrated absolute encoder that works with resolver feedback channels during homing and fine positioning. This feedback arrangement supports stable commutation and consistent position information across the operating range. Because the unit is delivered without a blocking brake, external locking is required if the axis must hold position when power is removed. The 021 frame with A length has no shaft seal and uses a standard single-ended shaft on side A, which keeps the motor compact for enclosed machines where sealing is handled at the gearbox or tooling interface.