Product Description:

The MDD090B-N-020-N2M-130PB2 is a synchronous servo motor produced by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it provides closed-loop actuation on machine tools, transfer systems, and automated assembly cells where reliable torque production and accurate speed tracking are required. Its synchronous design lets the drive respond quickly to command changes while keeping speed regulation stable during repetitive axis motion.

This model is fitted with a centering diameter of 130 mm, allowing direct alignment on standard flanges while its balancing remains standard to minimize residual vibration at the shaft. Power and feedback conductors exit on Side B through a keyed circular connector, keeping cable runs clear of moving linkages. At standstill the motor can deliver 7.2 Nm continuously under rated cooling, so it can hold a steady load without thermal overload. When driven to its nominal operating point of 2000 rpm, it supports moderate-speed axes that do not require high-frequency reversals. Rotor position is monitored by an integrated multi-turn absolute encoder; this sensor reports both incremental movement and true absolute angle, eliminating homing cycles after power loss. A standard housing, a keyway shaft type, a single shaft end, and a shaft seal protect the interior bearings from ambient oil mist or coolant splash.

Additional mechanical restraint is provided by a blocking brake that can lock the rotor with 11.0 Nm of static torque, preventing drift on vertical or suspended loads when power is removed. Size code 090 and length code B place the motor in the middle of the series and balance envelope dimensions against continuous output capability. Command loops benefit from Digital servo feedback (DSF), which streams high-resolution position data to the drive for tight velocity and torque regulation during acceleration, deceleration, and dwell phases.