MDD025B-N-100-N2K-040MD0
The MDD025B-N-100-N2K-040MD0 is a compact synchronous servo motor from Bosch Rexroth Indramat in the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts precisely modulated inverter current into mechanical rotation for high-speed positioning tasks in automated machinery and small gantry axes. Within an automation cell, it serves as the rotary element and returns motion data through internal feedback devices so the controller can keep velocity and position on target. Its compact format suits installations where axis space is limited but responsive motion is still required during repeated indexing cycles.
The motor develops a continuous standstill torque of 0.60 Nm, giving stable holding force while stationary without overheating. Its top operating speed reaches 10000 rpm, which supports rapid cycle times in pick-and-place or spindle duties. Accurate centering during mounting is enabled by a 40 mm centering diameter, and all electrical terminations are routed toward the rear because the connection orientation is Side B. Rotor angle data is provided through resolver feedback, an analog method that remains stable in electrically noisy environments. The centering shoulder helps align the housing to mating flanges, and the rear-directed connection layout can simplify cable routing where surrounding machine space is limited.
The rotor uses standard balance quality to reduce vibration across the speed range. The motor is supplied without a blocking brake, which keeps mass and inertia lower when external holding is acceptable. Torque is transmitted through a keyway shaft, while an integrated absolute encoder allows the drive to determine rotor position immediately after power-up. The motor also uses a B-length housing with a single-ended shaft and no shaft seal, which helps reduce friction at the output end. This arrangement is better suited to clean, dry installations that do not require an onboard brake or a sealed shaft interface.
