MDD025A-N-100-N2K-040PD1
The MDD025A-N-100-N2K-040PD1 is a compact synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Classified for use with digital drive controllers, it converts regulated inverter output into precise shaft motion for small pick-and-place modules, indexing tables, and other high-speed axes in automated machinery. The unit belongs to the 025 frame family, and its A length code indicates the shortest rotor stack in this size, which helps when mounting depth is limited. Because the motor is intended for compact servo axes, it fits machine modules where short installation length and precise motion control are both important.
The motor provides a continuous standstill torque of 0.33 Nm, which is suitable for holding or slowly moving lightweight loads without overheating. Its rated speed reaches 10,000 rpm, making it suitable for applications that require rapid indexing and short cycle times. Positioning on a machine plate is aided by a centering flange diameter of 40 mm, while standard balancing helps keep vibration within normal DIN limits. Power and feedback conductors exit on side B through a connecting cable with a coupling unit, which simplifies cable routing and keeps the electrical interface compact at the motor body. The housing uses a standard design, and the shaft seal provides basic protection against dust and incidental oil splash.
Control accuracy is supported by an integrated absolute encoder, which supplies multiturn position data to the drive. The rotor also uses resolver feedback for coarse-angle detection during startup and emergency operation. A blocking brake rated at 1.0 Nm clamps the shaft when power is removed, helping prevent drift on vertical axes. The output shaft uses a keyway profile and has no second shaft end, which reduces overhung mass on the opposite bearing. This shaft arrangement supports direct coupling to pulleys or precision couplings in compact axis assemblies.
