Product Description:

The MDD025A-N-100-N2K-040PB0 is a compact synchronous AC motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Designed for digital drive controllers, it provides rapid positioning and stable speed regulation on small pick-and-place axes, labeling heads, and semiconductor handling equipment. Its 025 frame and A-length housing keep inertia low so the drive can command frequent acceleration changes without excessive overshoot. In automated machines, the motor converts commanded current into proportional torque for closed-loop motion. This operating profile suits compact equipment that repeats short moves throughout the production cycle. It is intended for applications that need quick response without a large motor footprint.

The mechanical interface uses a centering diameter of 40 mm, allowing the flange to mate accurately with gear stages or mounting plates. Power and feedback conductors exit on Side B, and the motor uses a sealed connector arrangement that keeps cable routing compact. At standstill, the motor can deliver 0.33 Nm of continuous torque, which fits small-axis holding and feed applications. Under commanded motion, the rotor reaches 10000 rpm to support high-speed indexing. Standard balancing helps maintain smooth rotation in compact assemblies, and the flange geometry also helps maintain alignment when the motor is coupled directly to a small transmission element. The motor comes without a blocking brake, so holding position requires drive current or an external clamp.

Position information originates from the integrated absolute encoder, and the signal is processed through resolver feedback for commutation by the digital drive controller. The cylindrical output shaft uses a keyway to secure pulleys or hubs against slip, and a fitted shaft seal helps keep dust or coolant away from the bearing area. The shaft is present only on the drive side, which saves space on the non-drive end and supports installation where rear clearance is limited. Because the feedback device is integrated into the motor, no external measuring unit is needed at the load end. This layout works well in dense multi-axis assemblies where compact cable exit and short motor length help conserve machine space.