Product Description:

The MDD090A-N-020-N2L-110GB2 is a brushless AC motor produced by Bosch Rexroth Indramat in the MDD Synchronous Motors series. It is intended for digital drive controllers, where closed-loop motion must be repeated accurately across cycles. In automated equipment, it converts commanded current from the drive into rotary movement that positions tooling, feed axes, or conveyor sections in step with PLC timing. This makes it suitable for servo axes that require repeatable starts, stops, and speed changes during automatic cycles. Its mechanical format matches other motors in the series, which supports installation in similar machine layouts.

A centering diameter of 110 mm aligns the flange to machine frames without additional shims. At standstill, it can sustain 3.7 Nm of continuous torque, which gives the axis steady holding capability while remaining within thermal limits. The nominal operating speed is 2000 rpm, which suits gear ratios used for moderate traverse duties. With frame code 090, the motor balances inertia and torque density for mid-range applications. Rotor balance is kept to the manufacturer’s Standard grade to help limit vibration as the shaft accelerates through the speed range. The flange geometry also helps keep shaft alignment consistent during installation.

Power and encoder leads exit on Side B through a keyed Connector, which helps routing in deep enclosures and keeps the interface compact. Because both connections leave from the same end, cable routing can stay concentrated at one side of the housing. Position information returns to the controller through Digital servo feedback (DSF), allowing accurate commutation and closed-loop control without external sensors. A blocking brake provides 11.0 Nm of holding torque to secure vertical axes when power is removed. This brake arrangement is useful when a load must remain in place after shutdown. The motor also uses a plain shaft with a shaft seal to help prevent lubricant migration along the journal, and it has no secondary shaft end, leaving the primary side available for couplings or pulley hubs.