MDD025B-N-100-N2K-040MR1
The MDD025B-N-100-N2K-040MR1 is a compact synchronous servo motor built by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it delivers rotary motion in automated machinery such as small pick-and-place axes or spindle attachments. The motor has a size of 025, a B length code, and a standard housing that simplify installation in tight machine spaces, while standard balancing supports smooth operation at the high rotational speeds used in industrial automation. Its compact format also suits applications where low moving mass and limited mounting space are both important.
At a nominal speed of 10000 rpm, the rotor can follow high-frequency command profiles without mechanical overstress. The motor has a continuous torque at standstill of 0.60 Nm, which indicates the thermal load it can hold when the shaft is blocked during positioning. A centering diameter of 40 mm aligns the flange to gearboxes or fixtures and helps maintain concentricity during assembly. Electrical and feedback terminations are arranged on the right side, and the power leads exit through a keyed connector, which simplifies cable routing in multi-axis assemblies. This cable arrangement can also help keep the connection area orderly where several axes are mounted close together. The motor does not include a shaft seal, so it is intended for clean, dry environments rather than coolant-rich areas.
The motor carries an internal blocking brake that delivers 1.0 Nm of static holding torque, preventing back-drive when power is removed during vertical or intermittent duty cycles. Position data are supplied by resolver feedback, which provides speed information across the full temperature range, and by an integrated absolute encoder that retains multi-turn position data after shutdown. This encoder arrangement allows position information to remain available when power returns, reducing the need for a separate reference move. A keyway shaft transmits torque to couplings without additional locking elements. The standard shaft end is present only on side A, which helps keep the overall length minimal.
