MDD025A-N-100-N2K-040FD0
The MDD025A-N-100-N2K-040FD0 is a compact synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Designed to pair with digital drive controllers, the unit converts precisely modulated current into rotary motion for positioning tasks, indexing axes, and other high-speed duties common in automated assembly and electronics packaging lines. Its compact format suits tightly spaced machine layouts where responsive motion and limited installation space are important. This type of motor is often used on small axes that require accurate starts, stops, and reversals throughout repeated production cycles.
At standstill, the motor can exert 0.33 Nm of continuous torque, allowing it to hold small loads without overheating while energized. During operation, it reaches a nominal speed of 10000 rpm, supporting rapid cycle times where short move lengths and quick reversals are required. Mounting alignment is simplified by a centering diameter of 40 mm, and all power and feedback terminations exit on Side B, keeping cables clear of the driven mechanics. A factory-supplied connecting cable with coupling unit simplifies installation and allows quick disconnection without special tools. This cable arrangement also helps keep the connection path compact in dense assemblies. Because the motor is delivered without a blocking brake, any static holding force must be provided by the drive or by external locking devices.
Position accuracy is supported by an onboard integrated absolute encoder that supplies multi-turn data to the controller, while concurrent resolver feedback provides an analog position channel for drives that accept both signal types. A plain shaft permits direct coupling to miniature gearboxes or pulleys where keyed interfaces are unnecessary, and the standard balancing grade helps reduce vibration at high speed. The housing uses a standard open-frame design, and motor length code A keeps the overall body short. The short body can be useful where pulley guards, slides, or adjacent modules limit the available motor envelope. Because the motor has no shaft seal, it should be installed in clean, dry environments or used with an external seal where splash protection is needed.
