Product Description:

The MDD090A-N-040-N2M-110PR2 is a synchronous AC servo motor produced by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. It uses the 090 frame with the A length code, along with a standard housing and standard rotor balancing for direct mounting. The motor is intended for digital drive controllers that require controlled torque and speed in positioning tables, pick-and-place modules, and other automated motion axes. Its compact format supports installation where mounting space is limited but accurate servo response is still required.

The motor supplies a continuous standstill torque of 3.7 Nm, allowing it to hold static loads during closed-loop positioning without overheating. Under rated conditions, it reaches a nominal speed of 4000 rpm, which supports fast machine cycles without requiring gearbox multiplication. A centering diameter of 110 mm provides an accurate fit between the front flange and the machine frame for concentric shaft alignment. Power and feedback leads exit on the right side, which can simplify cable routing in layouts with limited access around the rear of the motor. The unit uses a single connector interface, reducing connection complexity and keeping the electrical interface compact.

An internal blocking brake provides 11.0 Nm of holding torque so the axis can remain fixed when drive power is removed. Position data is supplied by an integrated multi-turn absolute encoder, and the signal is processed through Digital servo feedback (DSF) for closed-loop control immediately after power-up. The shaft has a keyway and a factory-installed shaft seal, allowing secure torque transmission while helping protect the bearing area from contamination. The motor is built with only the primary shaft end, leaving side B closed. The single-piece flange maintains a stable mounting reference for accurate alignment during installation.