Product Description:

The MDD025C-N-100-N2K-040MD0 is a synchronous servo motor built by Bosch Rexroth Indramat and supplied within the MDD Synchronous Motors series. It is intended for use with digital drive controllers where compact form, low inertia, and high rotational speed are required for positioning or follow-up tasks. This model provides mechanical output through a single shaft end and is shipped without an internal blocking brake, allowing external holding devices or drive torque to secure the load when power is removed.

This motor produces a continuous standstill torque of 0.90 Nm, giving the drive predictable force availability for constant-load axes. The rotor can reach a nominal velocity of 10000 min⁻¹, so high-cycle machines can obtain short move times without oversizing the mechanical envelope. Power and feedback conductors exit on Side B, which simplifies cabinet layout when multiple motors share a common orientation. Commanded position data are verified by an integrated absolute encoder, eliminating the need to re-reference after each power loss. Motion is transferred through a shaft machined with a keyway, enabling quick coupling to pulleys or gears while preventing slip under acceleration.

Balanced rotors are supplied to the Standard grade, minimizing additional vibration at the application’s upper speed limit. The 40 mm centering pilot—called out as 40 mm—aligns the stator precisely on mounting flanges, maintaining coaxial accuracy between motor and driven load. For drive systems that rely on analog excitation decoding, the integrated sensor provides resolver feedback, allowing direct connection to legacy Rexroth controller channels. Because the front housing is delivered without a shaft seal, the installer must protect the bearing face from fluid ingress in wash-down or oil-spray areas, but the omission also reduces drag torque and supports rapid coast-down during safety stops.