Product Description:

The MDD090B-N-020-N2M-130GA0 is a synchronous servo motor built by Bosch Rexroth Indramat for integration with digital drive controllers in the MDD Synchronous Motors series. Acting as a compact rotary actuator, it converts controlled electrical energy into regulated mechanical motion for positioning axes, conveyors, or tooling stations in automated equipment. The unit is supplied in motor size 090, carries a standard housing finish, and uses standard dynamic balancing so it can be mounted without additional vibration countermeasures.

Mechanical interfacing begins with a centering diameter of 130 mm; this machined land aligns the stator flange concentrically to the machine frame, minimizing runout. Power and feedback leads exit on Side A through a sealed connector, allowing pre-terminated cabling to be routed alongside neighboring axes. At standstill, the stator delivers 7.2 Nm of continuous torque, supplying stable holding force for low-speed machining and index tables. During motion, the rotor is tuned for a nominal speed of 2000 rpm, balancing thermal limits with the dynamic response demanded by servo loops. Position and revolution counting are supplied by an integrated sensor; the integrated multiturn absolute encoder tracks multiple turns without battery backup so the drive always knows mechanical zero after power cycling. Motor length code B keeps overall depth short for tight cabinet spaces.

Feedback signals leave the housing as Digital servo feedback (DSF), enabling the controller to close high-bandwidth loops without external interpolation hardware. The rotor terminates in a plain shaft, and the manufacturer fits it with a shaft seal, allowing coupling to gearboxes or pulleys while maintaining the enclosure’s ingress rating. Because the design ships without a blocking brake, any required static holding torque must be supplied by the drive or an external mechanism. A standard shaft end on side A only, with no side-B extension, reduces overhang loads and simplifies guarding.