Product Description:

The MDD025B-N-100-N2G-040GF0 is a compact synchronous servomotor produced by Bosch Rexroth Indramat in the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it is intended to deliver precise torque in closed-loop industrial axes. The design uses the 025 frame size together with the B length code, resulting in a short overall body suited for tight machine spaces. A front shaft is provided in standard single-ended form without a side-B extension, simplifying installation in belt or coupling arrangements.

Performance characteristics start with a continuous standstill torque of 0.60 Nm, which is the thermal limit for static positioning tasks. When commanded, the rotor can attain a nominal speed of 10,000 rpm, supporting rapid indexing or spindle duties where high surface velocity is required. Rotor position and velocity are monitored through resolver feedback, enabling the drive controller to apply sinusoidal currents with low ripple. Mounting alignment is guided by a 40 mm centering diameter on the flange, and torque is transmitted through a plain shaft that can accept press-fit couplings. A shaft seal is fitted to protect the front bearing from process fluids and airborne particulates.

Electrical and cabling features are simplified by a connecting cable with coupling unit interface, and all terminations emerge on the right side of the stator housing to suit vertical panel layouts. The motor is supplied without a blocking brake, so power-off holding torque must be provided elsewhere in the machine. The internal rotor is finished with standard balancing, so it meets ISO vibration limits without additional trimming. A standard aluminum housing completes the assembly, with smooth external surfaces that facilitate convection cooling and allow the motor to be mounted directly to machine frames or enclosed modules.