Product Description:

The MDD090A-N-020-N2M-110GR0 is a synchronous servo motor produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. As a motor for digital drive controllers, it delivers closed-loop speed and position control to conveyors, pick-and-place stations, and other automated axes where coordinated motion is required in industrial equipment. That role allows the motor to respond to commanded changes in speed and position while the drive continuously corrects for load variation. The motor body follows the 090 size code, uses a standard housing, and carries a standard balancing scheme to help keep vibration low during normal operation.

This model develops a continuous standstill torque of 3.7 Nm, allowing small-frame machinery to hold loads without overheating. Its nominal operating speed is 2000 rpm, which matches drive controllers used for mid-range rotary motion. Mounting is centered by a 110 mm pilot diameter, which helps align the motor accurately on the machine interface. Power and feedback are routed through a right-side connector, simplifying cable runs in compact cabinets. Position data is returned through digital servo feedback supplied by the integrated multi-turn absolute encoder, enabling the controller to detect shaft angle after power cycling.

The unit is shipped without a blocking brake, so external holding mechanisms must be used when power-off torque retention is critical. A plain shaft with a keyless cylindrical end simplifies coupling to pulleys or gearboxes, and contamination is limited by a shaft seal that matches IP-rated enclosures. Mechanical length is identified by code A, giving the shortest stator depth available in the 090 frame and reducing armature inertia for faster acceleration. This layout is useful where short motor length is important for compact axis spacing. The shaft end on side B is omitted as standard, and the housing uses the standard MDD pattern.