MDD025A-N-100-N2K-040FR0
The MDD025A-N-100-N2K-040FR0 is a brushless synchronous motor manufactured by Bosch Rexroth Indramat within the MDD Synchronous Motors series. As a compact rotary actuator intended for use with compatible digital drive controllers, it converts commanded current into controlled torque and speed for small indexing tables, pick-and-place heads, or auxiliary machine axes in automated cells. Its size 025 frame and short A-length housing make it suitable for installations where space is limited.
It develops a continuous standstill torque of 0.33 Nm, which indicates how much load the shaft can support without motion when the drive supplies rated current. The permitted operating speed reaches 10000 rpm, which suits fast-moving servo axes that require short cycle times. A centering hub of 40 mm supports concentric mounting on gearbox or coupling interfaces and helps keep radial runout low. Power and feedback conductors exit on the right side because the stator connector is oriented in that direction, which helps with cable routing in tight cabinets. Position data originates from an integrated absolute encoder, allowing the controller to read the rotor angle immediately after power-up without a homing cycle.
The feedback system also includes resolver feedback, which the drive uses for velocity and commutation control across the full speed range. For applications that must decelerate through the drive alone, the motor is supplied without a blocking brake, so external mechanical holding devices may be needed on vertical axes. The rotating element uses standard dynamic balancing, and the rotor end is machined as a plain shaft with a keyless fit. Because the housing is supplied without a shaft seal, the installation area should be kept free of coolant spray or dust intrusion. Connection is made through a circular connector, and the standard housing and shaft-end finish follow the A-length design code for this frame.
