Product Description:

The MDD025A-N-100-N2K-040FB0 is a synchronous servo motor produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Designed for digital drive controllers, it supplies rapid rotary motion to pick-and-place arms, miniature gantries, and other compact automation axes. A standard housing and standard dynamic balancing allow direct mounting without extra vibration damping. The plain shaft also works with precision couplings that transfer torque smoothly to the load. This makes it suitable for small axes where fast response and low moving mass are important. The compact body helps it fit in crowded machine spaces without adding unnecessary bulk.

The mechanical interface uses a centering diameter of 40 mm. This shoulder locates the motor concentrically on adapter plates so shaft runout stays low during high-speed operation. Power and feedback conductors exit on Side B through a keyed connector, which keeps the electrical connection compact and easy to route toward the cabinet. At stall, the motor delivers 0.33 Nm of continuous torque for low-mass tooling. Its rotor is optimized for a nominal speed of 10000 rpm, providing high surface velocity without an external gearbox. The motor size code 025 keeps the package short, while length code A indicates the shortest active stack in this frame.

An integrated absolute encoder reports position immediately after power-up, and resolver feedback provides sinusoidal signals for commutation. The unit is supplied without a blocking brake, so any holding function must come from drive torque or an external clamp when the axis is stopped. The plain shaft has no seal, which reduces friction and suits clean, dry environments. There is no secondary shaft extension on side B, leaving one output end for coupling. The standard housing uses convection cooling, which keeps the motor layout simple and avoids the need for added cooling hardware.