MDD025A-N-100-N2K-040GF1
The MDD025A-N-100-N2K-040GF1 is a synchronous servo unit from the MDD Synchronous Motors series produced by Bosch Rexroth Indramat. As a motor for digital drive controllers, it supplies rotational power to axes that must be coordinated by a closed-loop inverter rather than by conventional contactors. In packaging, pick-and-place, and miniature tooling stations, this compact frame size 025 motor converts commanded current into mechanical torque so the attached load can follow programmed speed and position profiles.
The motor delivers a continuous standstill torque of 0.33 Nm, which is the sustained load it can hold without exceeding thermal limits while the rotor is motionless. High-speed tasks are enabled by a nominal speed rating of 10,000 rpm, giving short cycle times where rapid acceleration is required. Rotor position is tracked through resolver feedback, allowing the drive to calculate real-time velocity and commutation angle even during quick reversals. A mechanical holding element supplies 1.0 Nm of brake torque, so the shaft remains locked when power is removed. Alignment during mounting is simplified by a centering diameter of 40 mm, which keeps the stator concentric with the machine frame.
Power and signal conductors are routed through a connecting cable with a coupling unit. The output uses a plain shaft profile and is protected against lubricant ingress by an internal shaft seal. Terminals exit on the right side of the housing, which can shorten cable runs when multiple axes are installed in a row. An integrated absolute encoder reports position information after power-up, removing the need for a homing routine at startup. Standard balancing and a standard enclosure complete the design while supporting smooth rotation and compatibility with existing mounting hardware in the series.
