Product Description:

The MDD025C-N-100-N2K-040FB0 is a synchronous servo motor from Bosch Rexroth Indramat in the MDD Synchronous Motors series. Designed for digital drive controllers, it turns commanded current into rapid rotary motion for compact axes in automated machinery. The small frame and high rated speed suit installations where cycle time and space are tight.

Mechanically, the unit mounts with a centering flange that measures 40 mm in diameter, while standard balancing and housing tolerances permit smooth rotation without excessive vibration. Power and feedback leads exit on the motor’s rear because the connection hardware is located on Side B, and the interface is a keyed Connector that simplifies cable exchange in tight machines. With a continuous standstill torque of 0.90 Nm, the rotor can hold modest loads without energizing external clamps, yet the design still reaches a nominal operating speed of 10000 min⁻¹ for fast indexing. The length code C and size 025 keep the stator package short, so the motor integrates into narrow tooling. A standard shaft end on side A and the omission of a shaft extension on side B help maintain the compact profile, and no shaft seal is provided, making the unit suitable for clean, dry enclosures.

Feedback and braking options complete the specification set. Motion is reported by an integrated absolute encoder that supplies high-resolution position data to the drive, and additional coarse commutation data arrives through resolver feedback, allowing the controller to switch between modes without extra sensors. Because the motor is supplied without a blocking brake, holding force must be produced by servo torque or external locks during power-down events. The rotor is built on a plain shaft with keyless geometry, which lowers run-out and suits direct-coupled couplings. This structure minimizes assembly complexity while supporting the high speed capability noted earlier.