Product Description:

The MDD021A-N-100-N2G-032FA0 is a compact synchronous motor manufactured by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Size 021 and length code A indicate a small mechanical envelope, and the standard housing with the shaft end limited to one side helps it fit tightly packed single-axis modules. Intended for use with digital drive controllers, the motor supplies controlled rotary motion for pick-and-place heads, miniature actuators, and indexing devices in industrial automation lines. Its compact layout is useful where moving assemblies must stay light and where surrounding machine elements leave little room for a larger motor body.

A nominal speed of 10000 rpm supports fast cycle operation, and the motor can maintain a continuous standstill torque of 0.15 Nm for static positioning under load. The centering pilot measures 32 mm, which helps seat the flange concentrically on the mating surface. Position data is returned through resolver feedback, allowing the drive to monitor rotor angle across the speed range. Power and feedback conductors exit on Side A, which keeps both cable paths on the same face of the machine. This arrangement can simplify routing in compact installations where cable space is limited near adjacent axes or guarding.

Electrical connection is made through a sealed connector rather than fixed leads, so the motor can be disconnected without cutting or reterminating cable ends. The unit is supplied with no blocking brake, which suits axes that are held at rest by drive torque or by the machine mechanism itself. Torque is transmitted through a plain shaft, making it suitable for direct use with small clamping couplings or pulleys. The motor also uses standard balancing to help limit vibration during acceleration and steady rotation. Because the shaft does not include a seal, the motor is better suited for clean, dry installations where the surrounding enclosure provides the needed protection from contamination.