MDD025A-N-100-N2K-040GE0
The MDD025A-N-100-N2K-040GE0 is a synchronous servo motor developed by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Built for digital drive controllers, this compact unit converts electrical power into controlled mechanical rotation for positioning axes, pick-and-place arms, and other cyclic motion tasks in automated cells. Its plain shaft and standard housing enable direct coupling to precision gearheads or timing pulleys without additional machining. The compact format also suits installations where several motion components must fit in a limited amount of machine space. It is intended for compact machinery that requires repeatable rotary motion without a large motor footprint.
During operation, the motor can reach a nominal speed of 10000 rpm, allowing light loads to cycle quickly. A continuous torque of 0.33 Nm is available at standstill, so the axis can hold position under rated thermal conditions without extra gearing. The centering recess diameter of 40 mm aligns the stator face with mounting fixtures and helps keep radial runout low. Power and feedback conductors exit on the left side, which can simplify routing in cabinets where neighboring devices share vertical wiring ducts. A pre-assembled connecting cable with a coupling unit simplifies installation and preserves signal integrity between the motor and drive. Position tracking relies on an integrated absolute encoder, allowing the controller to monitor shaft position during operation.
Standard dynamic balancing keeps vibration low throughout the speed range, while the size 025 frame and A length leave enough space for airflow around adjacent components. Because the motor is supplied without a blocking brake, the axis must rely on drive-applied holding torque or an external clamp when motion stops. That is especially important when a load needs to remain fixed after power is removed. A durable shaft seal surrounds the plain shaft to help keep contaminants away from the bearing seats and to reduce the chance of lubricant escaping during service.
