MDD025B-N-100-N2K-040ML0
The MDD025B-N-100-N2K-040ML0 is a small-frame synchronous servo motor developed by Bosch Rexroth Indramat for the MDD Synchronous Motors series. In a multi-axis assembly that relies on digital drive controllers, this unit provides rapid acceleration and precise positioning for light loads. By combining permanent-magnet excitation with an electronic feedback interface, the motor converts electrical power from the controller into controlled rotary motion for pick-and-place heads, compact gantries, or spindle tooling. Its compact format also suits closely spaced axes where low moving mass helps support quick response.
At standstill, the rotor can deliver 0.60 Nm of continuous torque, which is the steady thermal limit for holding or low-speed jogging. During motion, it can reach a nominal speed of 10000 rpm, making the model appropriate for high-speed indexing tasks when paired with a matching inverter. A centering pilot of 40 mm helps align the flange to the driven machine and keeps radial runout within tolerance. All power and feedback conductors exit on the left side, which can simplify cable routing in cabinets built around standard right-angled layouts. The motor’s rotor position is tracked by an integrated absolute encoder, so the drive knows the shaft angle immediately after power-up.
Resolver data are also available through the secondary channel, giving the controller redundant information via resolver feedback for commutation and diagnostic backup. For applications where mechanical holding is provided by the transmission, the unit is supplied without a blocking brake, which avoids unnecessary inertia on the shaft. The housing ships without a shaft seal, so it should be installed in areas free of liquid ingress or fitted with an external sealing element. This layout suits clean, enclosed machinery where sealing is handled at the machine interface rather than at the motor housing. A keyway on the output journal simplifies torque transfer to pulleys or couplings while helping prevent slip under dynamic reversal.
