MDD025C-N-100-N2K-040MA0
The MDD025C-N-100-N2K-040MA0 is a compact synchronous servo motor produced by Bosch Rexroth Indramat and included in the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts drive current into precise mechanical rotation for positioning axes, pick-and-place stages, and other motion tasks in automated machinery. The unit operates in closed-loop systems where high speed and repeatable torque are required, allowing the associated controller to regulate rotor position, velocity, and acceleration through feedback channels. This makes it suitable for compact machine axes that need consistent response during repeated starts, stops, and direction changes.
At rest, the motor can deliver a continuous holding torque of 0.90 Nm, which is suitable for maintaining small loads without overheating. The rotor reaches a nominal speed of 10000 rpm, so short-cycle applications can achieve rapid indexing. Proper mechanical centering is simplified by its 40 mm pilot diameter, while electrical terminations are made through a front-mounted connector on side A, keeping cable routing compact. The digital controller receives position data from the integrated absolute encoder, and the commutation channel uses resolver feedback for smooth sinusoidal current control across the speed range. This feedback arrangement helps the drive maintain stable motion during both low-speed positioning and high-speed operation.
The motor has a C length and a size 025 stator, which help it fit into tight multi-axis assemblies. Its single shaft end uses a keyway for positive torque transfer, and it is supplied without a blocking brake, so stationary holding must be provided by the drive or by an external clamping device. The rotor is balanced to a standard grade, and the housing uses a standard format that matches common MDD mounting arrangements. Because the design omits a shaft seal and any side-B output, friction losses are reduced and the rear of the motor remains unobstructed.
