Product Description:

The MDD025B-N-100-N2G-040MR1 is a compact synchronous servo motor manufactured by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Designed for digital drive controllers, it converts commanded current into fast rotary motion for light pick-and-place tools, indexing units, and laboratory actuators. This operating profile suits small automation axes that need short travel, repeatable stopping, and controlled motion during frequent start-stop cycles. Its compact format makes it suitable for machines where available mounting space is limited and low moving mass helps preserve fast cycle times. The 025 frame size and B length code keep the package short, while a built-in blocking brake immobilizes the shaft when drive power is removed so that loads remain stationary during machine downtime.

The rotor uses standard balancing to minimize residual vibration, and the centering pilot measures 40 mm to align the housing accurately on mounting flanges. Under continuous stall, the motor delivers 0.60 Nm of torque, yet it can reach a rated shaft speed of 10,000 rpm when commanded by the drive. A blocking brake rated at 1.0 Nm supports static holding duties. Position and velocity data are returned through resolver feedback, allowing the controller to maintain tight loop accuracy without an external encoder. The standard aluminum housing promotes heat transfer, which supports continuous operation in a compact motor body.

Electrical and feedback leads exit on the right side, and a single multi-pin connector carries both power and feedback circuits, which simplifies cable routing on compact axes. The ground shaft is machined with a keyway so couplings can lock positively without slippage, and it is supplied without a side-B extension to reduce overhung mass. Because the front bearing arrangement is assembled without a shaft seal, the motor is intended for clean environments where oil mist or coolant ingress is not expected. Using one combined connection point also reduces cable spread around the housing and can make neighboring components easier to place in tight machine layouts.