Product Description:

The MDD025A-N-100-N2K-040MR0 is a synchronous servo motor from Bosch Rexroth Indramat in the MDD Synchronous Motors series. Built for digital drive controllers, it provides high-speed rotary motion and position feedback to compact automation axes. Its synchronous design supports precise response in small handling and positioning units. The motor uses a standard housing and comes without a blocking brake, so external clamping is required when power is off.

The mechanical envelope centers on a 40 mm centering diameter that aligns the flange with adjacent mounting features. At standstill, the motor can deliver 0.33 Nm of continuous torque, which suits low-inertia pick-and-place heads and miniature spindles. Dynamic operation reaches a nominal speed of 10000 rpm, enabling direct coupling to high-speed stages without intermediate gearing. The rotor and stator are balanced to a standard quality grade, and the thermal mass matches the compact 025 frame size with the short stator length coded as A. The short active length also helps keep the motor package compact in tightly spaced machine assemblies.

Power and feedback conductors exit on the right side through a single connector, which helps cable routing inside narrow cabinets. Position data is supplied by an integrated absolute encoder, while the drive uses resolver feedback for commutation during rapid accelerations. The ground steel shaft is machined with a keyway to accept standard couplings, and it is present only on the drive end, with no extension on side B. Because the motor ships without a shaft seal, installation should shield the front bearing from washdown or oil splash. A standard aluminum housing encloses the stator laminations, and every electrical interface uses an industrial circular connector. The connector arrangement also avoids placing cable exits at both ends of the housing.