MDD025A-N-100-N2G-040MC0
The MDD025A-N-100-N2G-040MC0 is a compact synchronous servo motor produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It serves as the rotary actuator in closed-loop drive systems where digital controllers command rapid acceleration and accurate velocity tracking. By translating current commands directly into torque, the unit supports positioning tasks and continuous-duty speed regulation in small pick-and-place stations, feeders, and automated test fixtures. Its compact format suits installations where low moving mass helps preserve responsiveness during short motion cycles. That makes it suitable for light-duty axes that must start and stop frequently while maintaining stable control.
The motor’s nominal speed is 10000 rpm, giving fast cycle times when paired with high-frequency inverters. At standstill, it can apply 0.33 Nm of continuous torque, which is enough to hold or index lightweight loads without overheating. A centering diameter of 40 mm provides the pilot fit for flange mounting and helps keep radial misalignment low. The shaft is machined with a keyway so torque is transferred through a positive mechanical lock instead of friction alone. Rotor position is monitored through resolver feedback, which provides rotor angle signals with high noise immunity and lets the controller commutate accurately across the speed range.
All electrical terminations are routed on Side A, and the power and feedback leads leave the housing through a connecting cable with coupling unit. The enclosure is standard, the rotor is balanced to DIN criteria, and the size code 025 with length code A keeps overall mass low for gantry or spindle heads. Because the motor is supplied without a shaft seal, the installation site must be free of coolant spray or oil ingress. The unit has no blocking brake, so static holding torque must come from the drive or an external clamp.
