Product Description:

The MDD021A-N-100-N2K-032MB0 is an AC synchronous servo motor manufactured by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. It is intended for use with digital drive controllers that regulate torque and velocity in compact automation axes. The A-length housing and 021 frame size give the motor a short overall depth, making it suitable for semiconductor handlers, miniature gantries, and other installations where fast acceleration and tight positional control are required in limited space.

This motor reaches a nominal speed of 10000 rpm, enabling high cycle rates when paired with properly sized gear trains or direct-drive loads. At standstill, it can develop 0.15 Nm of continuous torque, providing holding force for light-duty positioning tasks without excessive heat rise. The centering pilot on the flange is 32 mm in diameter, allowing precise concentric alignment to adjacent mechanics. Power and feedback conductors exit on Side B, which helps route cables away from moving machine elements. The motor uses a Connector style interface for the power and feedback connection.

An integrated absolute encoder supplies position data immediately after power-up, while complementary resolver feedback provides analog angle information to the drive for high-speed control loops. The shaft is machined with a keyway to transmit torque into pulleys or couplings, and it is produced without a shaft seal, which is acceptable in clean, dry environments where additional ingress protection is unnecessary. Standard dynamic balancing minimizes vibration during operation. The motor length code A indicates the shortest stator stack in the family, while the housing style and rotor balancing remain standard. Operation is specified without a blocking brake or a second shaft end to keep weight and inertia low.