Product Description:

The MDD090A-N-040-N2L-110GR0 is a three-phase synchronous motor designed by Bosch Rexroth Indramat for use with digital drive controllers. It belongs to the MDD Synchronous Motors series and serves as a compact servo actuator for positioning and velocity loops in automated machinery. The motor uses a standard housing and standard rotor balancing to help limit vibration during high-speed duty cycles. In automated equipment, this type of motor is well suited to multi-axis systems that require responsive closed-loop motion and stable operation through frequent starts, stops, and speed changes.

With motor size 090 and length code A, the device has a modest frame while supplying a continuous standstill torque of 3.7 Nm. Its rated mechanical speed reaches 4000 rpm, allowing fast cycle times when paired with a compatible inverter. Electrical terminations leave the housing in a right-side connection direction, and both power and feedback lines are carried through a single connector. Rotor position is returned through digital servo feedback (DSF), which supports accurate current regulation and quick dynamic response. The motor is supplied without a secondary shaft on side B, which helps keep the package compact and simplifies coupling layout in confined machine spaces.

The mounting flange has a centering diameter of 110 mm for accurate coaxial alignment, and the output uses a plain shaft that is suitable for clamp or keyless couplings. The motor is supplied with a shaft seal, which helps limit contaminant entry along the shaft during operation. It is also delivered without a blocking brake, so any holding function at standstill must come from the drive or an external braking device. The centering feature helps seat the motor accurately against the mounting face, and the sealed shaft arrangement supports use in applications that need precise motion without added drag from an internal brake.