Product Description:

The MDD090B-N-030-N2L-130PB1 is a motor for use with digital drive controllers produced by Bosch Rexroth Indramat and belongs to the MDD Synchronous Motors series. In an automation cell, this permanent-magnet AC servo converts controlled three-phase current from the drive into rotary motion. That operating mode gives machine tools, handling modules, and printing stations a repeatable positioning element. It is intended for servo axes that need controlled speed together with repeatable positioning during cyclic machine motion.

Mechanically, the rotor is balanced to a DIN standard class, and the stator uses a standard housing profile. This layout keeps the motor compatible with common MDD mounting arrangements. The centering pilot diameter measures 130 mm, allowing repeatable alignment with gearboxes or machine frames. Power and feedback conductors exit on side B, and a sealed connector interface supports cable connection without opening the housing. At standstill, the motor delivers 7.2 Nm of continuous torque, which is suitable for moderate load holding while the drive regulates current. When energized to its rated electrical frequency, the unit reaches a nominal speed of 3000 rpm, which suits packaging stations and gantry axes that need constant 1:1 speed with the drive command. The design uses motor size 090 with the B length code, and the single-ended shaft arrangement omits a second extension on side B to minimize overhang.

A blocking brake integrated behind the fan produces 6.5 Nm of static torque, so vertical axes can remain locked during power loss or when the machine is stopped. This helps prevent unwanted axis movement when drive-produced holding torque is unavailable. Position data is returned through digital servo feedback, allowing the drive controller to close velocity and position loops without external encoders. Torque is transferred through a keyway machined in the shaft, and the keyed connection supports positive torque transmission to couplings or driven components. A fitted shaft seal limits oil ingress, and standard balancing helps the motor run with low residual vibration when it is coupled directly to precision loads.