Product Description:

The MDD090A-N-020-N2M-130GA2 is a synchronous servo motor produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It is classified as a motor for digital drive controllers and is installed wherever closed-loop speed and position control are required on automated production lines, Cartesian stages, or auxiliary axes. The motor converts commanded electrical output from the drive into controlled rotary motion for accurate positioning and stable speed-regulated operation.

The mechanical reference circle is 130 mm, allowing the flange to seat concentrically against gearbox or machine frames. Standard balancing limits residual vibration during installation, while the standard housing protects the stator laminations without added cooling fins. Continuous torque at standstill is rated at 3.7 Nm, so the motor can support that load while locked without overheating under rated conditions. During motion, the rotor reaches a nominal speed of 2000 rpm, matching drive controllers that supply the corresponding electrical frequency. Power and feedback conductors exit on Side A, and the unit uses a rear-mounted connector rather than a terminal box to simplify wiring inside compact cabinets. The centering bore helps align the motor during installation, and a standard shaft seal limits lubricant migration along the shaft journal.

An integrated blocking brake supplies 11.0 Nm of holding torque, securing vertical or indexing loads when the drive is disabled. Motor size code 090 corresponds to the stator diameter, while length code A identifies the shortest active core in the family and helps reduce mass and inertia. Rotor position is measured by an integrated multi-turn absolute encoder, and motion data is transmitted through Digital servo feedback (DSF) so the controller can close high-resolution velocity loops without an external sensor. The motor has a plain shaft instead of a keyed or splined variant, and there is no secondary shaft on side B.