MDD025A-N-100-N2G-040FC1
Bosch Rexroth Indramat manufactures the MDD025A-N-100-N2G-040FC1 as part of the MDD Synchronous Motors series. The unit is intended for use with digital drive controllers, providing precise rotary power for small positioning axes and high-speed auxiliary drives encountered in electronics assembly and light machining cells. Its compact housing simplifies installation inside tight machine frames, and the standard mechanical interface allows direct coupling to existing Rexroth drive hardware without custom adapters.
The rotor is dynamically balanced to the standard grade, and a centering collar with a diameter of 40 mm guides accurate seating against the gearbox or flange. Continuous stall torque is rated at 0.33 Nm, so thermal loading stays low during static holding tasks. During normal operation, the shaft can reach a nominal speed of 10000 rpm, enabling short cycle times when paired with fast-switching inverters. Power and feedback conductors exit on Side A, and the factory-installed connecting cable with coupling unit reduces wiring effort. Motor size 025 and length code A identify the short stator stack that keeps mass to a minimum, while the standard housing and plain bearing seats maintain interchangeability with other motors in the series.
An integral blocking brake supplies 1.0 Nm of holding torque to secure the load during power-off conditions. Position data is returned through resolver feedback, which withstands electrical noise and high rotational speeds. The shaft is a plain shaft without a keyway, and it is delivered without a shaft seal, so the application must provide an external seal if fluids or dust are present. A standard shaft end on the drive face and the absence of a side B extension simplify coupling to pulleys or miniature gearheads.
