Product Description:

The MDD090A-N-020-N2M-110GB2 is an AC synchronous servo motor manufactured by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it converts commanded current into precisely regulated shaft rotation for positioning and velocity control in automated machining centers, conveyors, and material-handling stations. The design integrates the rotor, stator, and feedback electronics into a sealed frame so that it can be mounted directly on mechanical axes without auxiliary transmission elements. This arrangement keeps the motor compact and reduces the need for external drivetrain hardware on the axis.

Mechanically, the motor uses standard dynamic balancing and a standard aluminum housing that fastens to machine flanges through a centering recess of 110 mm for accurate mounting alignment. Power and feedback cables exit toward side B through a molded connector, which helps simplify routing and reduces strain at the stator connection point. At standstill, the electromagnetic package supplies a continuous torque of 3.7 Nm. The motor reaches a nominal operating speed of 2000 rpm, which suits medium-inertia loads. The drive shaft uses a plain shaft design, the shaft end has no secondary extension on side B, and a shaft seal is fitted to help block coolant ingress.

Motion control reliability is supported by an integrated multi-turn absolute encoder that reports rotor position through digital servo feedback, so position is available immediately after startup and no reference run is required after a power interruption. A blocking brake built into the motor delivers 11.0 Nm of holding torque to keep vertical or suspended axes stationary when the drive is disabled. Size code 090 and length code A give the unit a compact envelope that fits tightly packed machines while leaving room for the connector interface and sealed bearing system.