MDD025B-N-100-N2G-040GF0
The MDD025B-N-100-N2G-040GF0 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Designed for digital drive controllers, it converts commanded current into mechanical motion for compact positioning axes. Size code 025 and length code B indicate a small frame and a short active core. This compact format suits light, responsive motion tasks where the motor must fit into limited machine space while still supporting accurate speed and position control.
This model delivers a continuous standstill torque of 0.60 Nm, which supports steady holding or tensioning duty during normal operation. A nominal speed of 10000 rpm allows use in fast-moving feeder and spindle applications where short cycle times are important. Mechanical alignment is simplified by a centering diameter of 40 mm, and the power and feedback conductors exit on the right side to support fixed cable routing. The electrical interface uses a connecting cable with coupling unit, which avoids the need for a separate terminal box. Rotor position is monitored through resolver feedback, allowing the drive to maintain closed-loop control even where electrical noise is present. This feedback method is well suited to industrial environments that demand stable motion signals across a broad speed range.
Dynamic balance follows the standard grade used in the series, which helps limit vibration during operation. The housing uses a standard unflanged style that keeps the motor body simple and compact for integrated machine layouts. The shaft end is a plain shaft formed from a single piece, and it is protected with a shaft seal at the drive face to help reduce lubricant loss and the entry of process fluids. Because the unit is supplied without a blocking brake, any holding force needed during power-off conditions must be provided by external mechanics or by keeping the motor energized through the drive. This arrangement is common on axes where braking is handled elsewhere in the machine system.
