MDD025C-N-100-N2K-040PR0
Bosch Rexroth Indramat manufactures the MDD025C-N-100-N2K-040PR0, a permanent-magnet servomotor in the MDD Synchronous Motors series. As a motor for digital drive controllers, it receives regulated three-phase current from the drive and delivers tightly controlled rotary motion for compact automation axes that demand high cycle rates and accurate positioning. Its compact design suits small servo axes that need quick response during repeated start-stop motion. The motor is intended for applications where stable speed control and accurate positioning must be maintained in a limited installation space.
This unit supplies a continuous stall torque of 0.90 Nm, giving the drive enough margin to hold light loads without overheating at zero speed. Its rated mechanical speed reaches 10000 rpm, so short-stroke actuators can achieve rapid acceleration while staying within the motor’s electrical limits. The centering diameter is 40 mm, which provides the pilot fit for flange mounting and helps keep runout within tolerance. Power and feedback connectors are oriented on the right side, simplifying cable routing where space is limited on the opposite face. A radial shaft lip is included, and the motor is supplied with a shaft seal to limit lubricant loss and help block fine dust from entering the bearing cavity.
An integrated absolute encoder supplies single-turn position data to the drive, allowing immediate commutation at power-up and eliminating homing moves. Because the motor is delivered without a blocking brake, any holding function must be provided by drive torque or an external mechanical lock, which reduces weight and inertia for fast indexing. For speed feedback in dynamic loops, the internal electronics also use resolver feedback, giving high resolution across the full temperature range without requiring a battery. The output shaft uses a keyway, enabling direct coupling to gears or pulleys and supporting positive torque transfer during rapid reversals. This combination of feedback and shaft features supports accurate motion on compact axes that cycle frequently.
