Product Description:

The MDD090A-N-020-N2M-130PR2 servo unit is manufactured by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it works with compatible inverter stages to deliver regulated rotary motion to automated handling, packaging, and machining axes. Its compact housing uses motor size 090 and length code A, which helps the unit fit installations where mounting space is limited. This layout supports mid-range positioning tasks while maintaining stable speed control and repeatable axis movement.

At standstill, the rotor produces a continuous torque of 3.7 Nm, which helps support the driven load without drift until motion begins. During operation, it reaches a nominal speed of 2000 rpm, which suits common transmission ratios in industrial motion systems. A blocking brake is fitted, and its static holding capacity of 11.0 Nm secures vertical or suspended axes when power is removed. Rotor balance is standard to limit vibration, and a centering pilot of 130 mm aligns the flange accurately to adjoining machinery. Positional data are returned to the drive through digital servo feedback (DSF), allowing the speed and torque loops to close with high resolution.

The power and feedback leads exit to the right-hand side and terminate on a top-mounted connector, which helps keep cable routing compact around the motor housing. Mechanical coupling is handled by a shaft with a keyway, and a protective shaft seal helps keep contaminants away from the bearings. For position tracking over multiple revolutions, the motor uses an integrated multi-turn absolute encoder, so the controller can recover position after power cycling without a homing sequence. The absence of a side B shaft extension follows the standard single-shaft arrangement and leaves the opposite end of the motor housing closed.