MDD041A-N-100-N2G-050GB0
The MDD041A-N-100-N2G-050GB0 is a brushless synchronous servo unit manufactured by Bosch Rexroth Indramat for the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts commanded current into mechanical rotation for axes that need accurate speed and torque regulation in automated machinery. The model belongs to size 041 and uses length code A, giving it a compact rotor stack suited to light-duty positioning tasks where space and inertia must remain minimal. This compact format is useful on small machine axes where short response time and limited installation space are both important.
At its rated operating point, the rotor reaches a nominal speed of 10000 rpm, allowing rapid cyclic motion when paired with a compatible drive. During standstill, the electromagnetic structure can sustain 0.64 Nm of continuous torque, so the motor can resist light static loads without thermal overload. Position and velocity are returned to the controller through resolver feedback, an analog sensing method that provides rotor angle information for closed-loop control and remains robust in electrically noisy environments. Mechanical energy is transmitted by a plain shaft, which works well with precision clamping couplings. Accurate centering against mating flanges is supported by a 50 mm pilot diameter that helps align the stator housing with the machine frame.
Stable operation at higher speed is assisted by standard balancing, which helps limit vibration during routine running conditions. Power and feedback conductors exit from side B of the housing, which can simplify cable routing in confined spaces or vertical cabinets. To limit lubricant migration into the resolver cavity, the motor uses a shaft seal at the output journal. The motor is supplied without a blocking brake, so any load that must remain fixed at standstill requires external holding force or drive-applied torque. A standard aluminum frame keeps weight low and supports consistent heat transfer from the housing surface.
