MDD025A-N-100-N2G-040FR1
The MDD025A-N-100-N2G-040FR1 is a compact servo motor manufactured by Bosch Rexroth Indramat and assigned to the MDD Synchronous Motors series. Designed for digital drive controllers, it converts commanded current into precise mechanical rotation for small positioning axes in industrial automation, including compact handling units and indexing mechanisms. The 025 frame and A length code keep the unit short and light, making it suitable for tight machine spaces where high rotational speed is required. Its compact format also helps when nearby components leave limited room for the motor body and cable routing.
At stall, the motor develops a continuous torque of 0.33 Nm, which is the steady load it can hold without overheating when cooled only by its housing surface. During motion, it can reach a nominal speed of 10000 rpm, and this high rated velocity can support direct coupling to miniature spindles in space-limited assemblies. A blocking brake is integrated and rated for 1.0 Nm, providing static holding force when power is removed or the axis must remain at rest. Rotor mass and shaft runout are controlled through standard dynamic balancing, while the centering pilot measures 40 mm to align the flange with precision mounting faces. Position and velocity feedback are supplied by resolver feedback, giving the drive rotor-angle signals that remain reliable in electrically noisy environments.
Power and feedback leads exit on the right side through a compact connector block that mates directly with matching drive cables. The motor uses a plain shaft, and the working end follows the standard shaft-end arrangement without a secondary shaft on side B. It operates without a shaft seal, which reduces friction where the surrounding machine already controls dust and fluid exposure. This connection and shaft arrangement can simplify installation on compact axes where clearance around the motor is limited.
