MDD025A-N-100-N2K-040PE1
The MDD025A-N-100-N2K-040PE1 is a compact synchronous motor manufactured by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Designed for digital drive controllers, it converts drive current into precise mechanical rotation for indexing tables, light actuators, and other high-speed axes in industrial automation. This operating profile suits compact machine assemblies where fast response and stable motion are required in limited installation space. Its 025 frame size, A length code, and standard housing keep mass and envelope to a minimum, while standard balancing supports direct coupling without extra trim weights.
The motor reaches a nominal speed of 10000 rpm, enabling rapid cycle times when paired with servo amplifiers. At standstill, it can hold a load continuously with 0.33 Nm of torque, which marks the safe static load before thermal rise becomes limiting. Position feedback is supplied through resolver feedback, so the drive receives continuous angle data even during high accelerations. An integrated absolute encoder is also present, providing multi-turn position information at power-up without homing routines. This combination supports closed-loop motion during operation and immediate position availability after restart. Power and feedback conductors exit on the left side, which can simplify cable routing when several axes share the same cabinet path.
For power-off holding, the built-in blocking brake develops 1.0 Nm of torque, keeping vertical or inertial loads fixed until drive torque resumes. Mounting is guided by a centering pilot of 40 mm, which helps maintain coaxial alignment with machine frames and mating components. The output shaft uses a keyway profile, so torque transfer relies on positive mechanical engagement rather than friction alone. Electrical hookup is made through a connecting cable with a coupling unit, providing a compact interface between the motor and external wiring. A shaft seal helps protect the internal bearings from coolant splash and light contamination, and the single-ended shaft leaves no extension on side B to keep the overall length short for tight installations.
