Product Description:

The MDD025A-N-100-N2K-040FC0 is a synchronous servo motor manufactured by Bosch Rexroth Indramat and assigned to the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it delivers rotary motion to compact axes that rely on tight position loops. The unit uses motor size 025 and the short motor length code A, allowing installation in equipment where envelope constraints dominate. A standard housing provides mechanical rigidity and preserves compatibility with the series mounting pattern. Its operating role is to convert controlled electrical input into repeatable shaft motion for small automated modules.

At the mechanical interface, the pilot fit has a centering diameter of 40 mm, and all power connections leave the stator on side A through a connecting cable with a coupling unit. This arrangement keeps the cable outlet on one end of the motor and helps simplify routing in narrow machine frames. When held at standstill, the electromagnetic system develops 0.33 Nm of continuous torque, enabling light holding or tensioning loads without overheating. During dynamic moves, the rotor may reach 10000 rpm, supporting rapid pick-and-place strokes or small high-speed process axes. The combination of low continuous torque and high speed is typical of a small-frame motor intended for precise, low-inertia motion.

Motion controllers receive high-resolution position data from an integrated absolute encoder, while coarse commutation signals are provided by the embedded resolver feedback. This feedback combination gives the drive position information at startup and supports stable electronic commutation during operation. Because the motor is supplied without a blocking brake, axis holding forces must be provided externally when power is removed. The design also comes without a shaft seal, and the output is a plain shaft that mates directly with clamping hubs. Standard balancing helps limit residual vibration at top speed, and the absence of a side B shaft end keeps the overall package short for inline mounting.