MDD025A-N-100-N2K-040ML1
The MDD025A-N-100-N2K-040ML1 is a miniature synchronous motor manufactured by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it converts controlled electrical pulses from the drive into mechanical rotation for high-speed positioning tasks on compact pick-and-place axes and similar automation modules. An integrated absolute encoder returns exact rotor position immediately after power-up, eliminating the need for external reference moves. With a frame size designated 025, the unit fits installations where space and moving mass are limited.
During operation, the motor delivers a continuous standstill torque of 0.33 Nm, enabling stable holding force while the controller manages micro-positioning. When released, the rotor can accelerate to its nominal velocity of 10000 rpm, a rating that lets the axis complete short indexing cycles with minimal idle time. That speed also suits lightweight mechanisms that require fast starts and stops between closely spaced positions. Mounting is simplified by a 40 mm centering diameter, and all electrical terminations exit on the left to keep cables clear of motion. A blocking brake is fitted, and it applies 1.0 Nm of torque to secure vertical or suspended loads whenever the drive is disabled. The housing uses a standard molded design, the motor uses standard balancing, and a single shaft end helps conserve length.
The feedback channel uses resolver feedback, so the drive can interpolate high-resolution speed data even in electrically noisy zones. Power and signal lines mate through a single connector, which keeps the motor body compact and reduces the number of separate cable interfaces. The motor has the compact length code A, which helps it fit short travel axes and tightly spaced machine layouts. Rotor mass is balanced to a standard tolerance class, reducing vibration when the keyway shaft transmits motion to pulleys or miniature gear sets. Because the unit is supplied without a shaft seal, it should be installed in locations shielded from coolant spray or oil mist.
