Product Description:

The MDD090B-N-020-N2L-110PR1 is a synchronous servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It is intended for use with digital drive controllers and converts regulated electrical power into rotary motion for axes that require repeatable torque and speed behavior. This type of motor is commonly used in automated assembly lines, packaging stations, and material-handling modules where accurate closed-loop motion is required during continuous operation.

This model delivers a continuous standstill torque of 7.2 Nm, which gives the axis stable holding force during low-speed positioning tasks. Under rated excitation, the rotor reaches a nominal speed of 2000 rpm, allowing the motor to operate with gearboxes or direct-drive shafts at moderate process speeds. The flange has a centering diameter of 110 mm, which helps align the stator housing to the machine mounting surface with minimal runout. Power and feedback cabling exits through a right-side connection, and a single circular connector keeps cable routing compact. The motor uses Digital servo feedback (DSF) so the controller can close the velocity and position loops without an external encoder. The housing uses length code B, and the shaft has a keyway with no shaft end on side B.

A blocking brake integrated at the non-drive end applies up to 6.5 Nm of static torque, which helps keep vertical or suspended loads from drifting when the drive is disabled. The motor also includes a shaft seal to help limit contaminant ingress near the bearing area. Vibration behavior is managed through standard dynamic balancing to common ISO motor grades. This combination supports smooth rotation during normal operation and stable holding when the axis is stopped. The standard housing form also suits machine layouts that use a compact servo motor with a centered flange and sealed output shaft.