Product Description:

The MDD090C-N-020-N2M-110GB0 synchronous motor is built by Bosch Rexroth Indramat and belongs to the MDD Synchronous Motors series. As a motor for digital drive controllers, it supplies rotary motion for position and velocity loops in automated machinery. The unit uses the 090 frame size with the C length code and comes in a standard housing configuration. Standard rotor balancing reduces vibration during acceleration, while the plain shaft and a standard shaft end on the drive side simplify coupling to gearboxes or direct-drive loads. This layout suits machine axes that need repeatable motion in a compact installation space.

In operation, the motor can deliver 10.4 Nm of continuous standstill torque, allowing stable holding or low-speed motion under rated thermal conditions. Its rated speed reaches 2000 rpm, so the motor fits process axes that do not require high rotational speed. The flange uses a 110 mm centering diameter to align the motor accurately to machine faces. Power and feedback cables exit on side B, and the factory-installed connector allows the wiring harness to be detached without disturbing the motor body. Standard rotor balancing also helps limit residual vibration, and the plain shaft geometry transmits torque without keyways where low backlash is preferred.

Position data are handled by an integrated multiturn absolute encoder, which sends multi-revolution information through digital servo feedback (DSF) to the controller for closed-loop regulation. Because the motor is supplied without a blocking brake, static holding must be provided by the drive or by an external brake module when the axis is stopped. A shaft seal is fitted to restrict lubricant migration and help protect the internal laminations from dust or coolant. The feedback arrangement also lets the controller retain position information across multiple revolutions, which is useful on axes that are expected to return to operation without a new reference move after power cycling.