Product Description:

The MDD090A-N-020-N2M-130GR2 is a synchronous servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it provides closed-loop rotary actuation in automated handling, packaging, and tooling axes. The frame corresponds to motor size 090, and the short A-length housing uses standard construction with a standard balancing grade for direct coupling to precision machinery. When paired with a compatible drive, the unit converts electrical energy into controlled torque and speed for repeatable positioning tasks. This type of motor is suited to applications that require precise starts, stops, and controlled speed changes during repeated cycles.

A centering diameter of 130 mm positions the flange concentrically for accurate mounting. The continuous standstill torque of 3.7 Nm is the amount of torque the motor can hold without movement, and the rotor reaches a nominal speed of 2000 rpm under rated conditions. Motion feedback is handled through digital servo feedback, and an integrated multi-turn absolute encoder retains position information after power loss. This feedback arrangement allows the connected drive to monitor shaft position and motion continuously during operation. Power and signal connections are routed through a molded connector on the stator housing, and the shaft uses a plain cylindrical end to help minimize runout.

The connection points face right, which can simplify cable routing in some machine layouts. A blocking brake is fitted and provides 11.0 Nm of holding torque so vertical or suspended loads can remain stationary when the drive is disabled. This is useful on axes that can drift under gravity when power is removed. The brake, shaft, and bearings are protected by a shaft seal that helps limit lubricant loss and keep contaminants out. The motor has no side-B shaft end, which helps keep the assembly short where installation depth is limited.