MDD025B-N-100-N2K-040PA0
The MDD025B-N-100-N2K-040PA0 is a synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it converts drive output into precise rotary motion for compact automation stages, small pick-and-place heads, and auxiliary spindles. The motor’s diameter and length follow the 025 frame size, making it a lightweight option when space and inertia are limited in multi-axis assemblies. Its compact format suits small mechanisms that need fast starts and stops without adding much rotating mass to the axis. This layout is useful in indexing units and auxiliary axes where available mounting space is restricted.
During operation, the rotor can maintain a continuous standstill torque of 0.60 Nm and reach a top running speed of 10,000 rpm without exceeding thermal limits. A factory-mounted integrated absolute encoder supplies high-resolution position data, while resolver elements provide analog feedback for drive commutation. The front flange includes a centering boss of 40 mm, which helps align the motor with gearboxes or direct-drive loads. Service wiring is simplified because the power and feedback plugs are oriented on side A and use a single sealed connector. This arrangement helps keep cable routing compact around tight machine frames.
The motor uses standard dynamic balancing, and the stator is enclosed in a general-purpose housing for typical shop environments. The output shaft has a keyway profile and protrudes only on the drive side, while the opposite end remains closed to keep the layout single-ended. An internal shaft seal limits lubricant migration and particle ingress at the output face. Because the unit is supplied without a blocking brake, torque from the controller or an external clamp must hold position during power-off periods. This arrangement suits axes that do not rely on an onboard brake for static load holding.
