Product Description:

The MDD025C-N-100-N2K-040FD0 is a compact synchronous servo unit produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It is classified as a motor for digital drive controllers and is intended to supply responsive rotary motion in small automation axes. The model follows motor size 025 with the C length code, employs a standard housing and is factory balanced to the standard grade, ensuring uniform running at its design speeds. It is supplied without a blocking brake, and its shaft end is the standard variant that excludes a secondary shaft extension on the opposite side, matching applications that use external couplings or pulleys.

At the heart of the mechanical rating, the unit can deliver a continuous standstill torque of 0.90 Nm, allowing stable holding force when the rotor is energized but stationary. During motion it can reach a nominal velocity of 10000 min⁻¹, a value suited for high-speed positioning stages that rely on rapid acceleration profiles. A pilot diameter of 40 mm centers the motor on the mounting surface to maintain concentricity. Power and feedback conductors exit on Side B, and the factory-installed connecting cable with coupling unit simplifies plug-in installation without separate terminal boxes. Closed-loop position data are generated by an integrated absolute encoder, so the controller receives multi-turn information immediately after power-up.

Complementing the encoder, command loops may alternatively evaluate the built-in resolver feedback, which offers analog sine-cosine signals for drives that favor this transducer type. The stainless steel output spindle is a plain shaft, giving designers freedom to mount custom hubs or press-fit gears, and it is delivered without a shaft seal, a configuration chosen where the installation is protected from coolant or oil ingress. These mechanical details permit the servo to operate smoothly when paired with digital control amplifiers that expect the MDD communication format.