Product Description:

The MDD025A-N-100-N2K-040MF1 is a compact synchronous servo motor produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It is intended for use with digital drive controllers where rapid acceleration and precise velocity control are required on small axes such as pick-and-place heads or miniature spindles in automated cells. Its compact format suits machines that need responsive motion in limited installation space. By combining integrated feedback with an internal blocking brake, the unit can maintain position without controller power, which supports vertical axes and other applications that need secure holding.

The rotor can deliver a continuous standstill torque of 0.33 Nm, while its rated mechanical speed reaches 10000 rpm. The blocking brake generates 1.0 Nm of holding torque, enough to secure the shaft during power loss or stopping conditions. This combination favors fast rotary motion on light-duty axes rather than high static load capacity. A centering diameter of 40 mm aligns the motor on face-mounted fixtures, and the shaft uses a keyway to transmit torque to couplings or pulleys without slip. The housing uses a sealed, convection-cooled design, so no additional airflow is required at the installation site.

Electrical terminations exit on the right side through a connecting cable with coupling unit, which can simplify layouts where several axes are mounted close together. The right-side cable exit can also reduce cable crowding near adjacent motors or guides. Feedback to the drive is provided by resolver feedback, which supplies rotor angle data and remains tolerant of electrical noise from inverters. Because the motor is supplied without a shaft seal, the shaft end should be protected from liquid exposure in washdown areas. The motor has frame length A and frame size 025, which help keep mass low for small-force applications, and standard balancing helps limit vibration during operation.