Product Description:

The MDD025A-N-100-N2G-040FD0 is a compact synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Designed for use with digital drive controllers, it converts commanded current into fast rotary motion for indexing tables, pick-and-place heads, and other space-limited automation axes. Its lightweight aluminum housing and small frame let the motor sit close to the load, which shortens mechanical linkages and helps reduce compliance in the drive train. Standard internal balancing keeps vibration low at high speed, making the unit suitable for precise, repetitive motion in assembly and handling equipment. Because the frame is small, it also suits axes where moving mass must be kept low.

The motor has a nominal speed of 10,000 rpm and a continuous stall torque of 0.33 Nm. Accurate alignment to the machine interface is provided by a 40 mm pilot diameter. All power and signal conductors exit on side B, and termination uses a connecting cable with a coupling unit, which helps keep wiring compact around the motor body. Routing both power and feedback from the same side can simplify cable paths in shallow machine sections and reduce bend overlap near the mounting face. The aluminum housing supports convection cooling without an auxiliary blower. The motor is supplied without a shaft seal and is intended for clean enclosure installations, while the shaft arrangement uses a single-ended output.

The control loop uses resolver feedback, allowing the drive to determine rotor position throughout each revolution. Resolver signals also tolerate electrical noise well in industrial environments. The motor is delivered without a blocking brake, so any holding function during power loss must be provided externally. Torque is transmitted through a plain shaft, which supports simple coupling to the driven mechanism. As part of the 025 frame class with length code A, the motor occupies very little axial space and fits applications that need a high-speed, low-inertia rotor.