MDD025A-N-100-N2K-040MF1
The MDD025A-N-100-N2K-040MF1 is a compact synchronous motor from the MDD Synchronous Motors series produced by Bosch Rexroth Indramat. It is intended for use with digital drive controllers where rapid servo positioning and precise velocity control are required in automated assembly and small-format handling systems. In these applications, the motor converts electrical commands from the drive into mechanical rotation and supports high operating speeds on short-stroke or high-cycle axes.
The motor can deliver a continuous stall torque of 0.33 Nm, providing steady low-speed force without thermal overload when held in position. A nominal speed rating of 10,000 rpm supports fast indexing when the drive supplies higher-frequency excitation. Mounting is centered by a 40 mm pilot diameter that fits standard machine interfaces, and the power and feedback leads exit on the right side so cable routing can be planned accordingly. Electrical power is routed through a single connecting cable with a coupling unit, which reduces enclosure bulk, and the output shaft has a keyway to help prevent slip under load. Because the motor is supplied without a shaft seal, it is best suited for clean, dry enclosures where oil or coolant splash is not present.
An internal blocking brake provides 1.0 Nm of holding torque to keep the axis stationary when control power is removed and to limit drift in vertical or indexed positions. Position feedback is generated by an integrated absolute encoder supported by resolver feedback, allowing the drive to retain coarse rotor angle information if the primary encoder reference is lost. The rotor uses standard balancing, which meets ISO vibration limits for direct coupling to lightweight fixtures. Additional details include the standard housing configuration, motor size 025, length code A, and the absence of a side B shaft end, which helps keep the motor compact in tight multi-axis layouts.
