Product Description:

The MDD090C-N-020-N2L-130GA2 is a synchronous AC servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It is supplied as a motor for digital drive controllers, so it converts commanded current from the drive into precise rotary motion for positioning tables, pick-and-place axes, and other automated machinery. The unit uses the 090 frame code, and its C-length stator core provides additional active material for higher continuous torque. It is intended for precise positioning service, where repeatable acceleration and stable speed regulation are needed across frequent starts and stops. Its mechanical form suits direct coupling to geared or belt-driven loads in enclosed production lines.

The rotor can reach a nominal speed of 2000 rpm, which is the synchronous operating point when the drive supplies rated frequency. At standstill, the electromagnetic system produces 10.4 Nm continuously without exceeding winding temperature limits, which supports steady torque production during low-speed holding tasks. The centering pilot diameter of 130 mm aligns the flange to machine frames so radial runout is minimized. Position data is returned through digital servo feedback, enabling the drive to close the velocity and position loops with 32-bit resolution. This closed-loop arrangement supports accurate motion during indexing, dwell, and repeated positioning cycles. Power, brake, and feedback leads are attached through a single connector on side A, which keeps cabling consolidated and encoder wiring short.

A spring-applied brake rated at 11.0 Nm engages automatically when the drive is disabled, preventing tool drift on vertical axes. The motor uses a plain shaft with no key, allowing clamp couplings or shrink discs for zero-backlash transmission. There is a shaft seal at the output end to block coolant spray and fine dust. The casting uses a standard housing and standard balancing to help control vibration during operation. The sealed output end helps keep contaminants away from the bearing area during normal machine use.