Product Description:

The MDD090B-N-040-N2M-110PB1 is a motor for digital drive controllers built by Bosch Rexroth Indramat and belongs to the MDD Synchronous Motors series. As a brushless AC servo unit, it converts command currents from the drive into precise shaft rotation for positioning or speed-regulated tasks on packaging lines, pick-and-place gantries, and other automated machinery. The internal design, housing, and feedback interface allow the motor to integrate directly with Indramat drives to form closed-loop axes that meet demanding dynamic accuracy requirements.

Its nominal speed reaches 4000 rpm, allowing the drive to command fast traverse moves while remaining within the electrical frequency range of standard Indramat amplifiers. A continuous standstill torque of 7.2 Nm describes the sustained load the rotor can hold without overheating, which is important when indexing tables pause under load. Power and feedback cables exit on side B of the housing, so cabinet layouts must leave clearance on that face. Position information is delivered by an integrated multi-turn absolute encoder, providing the controller with absolute shaft angle over multiple revolutions and eliminating homing routines. Mechanical coupling is performed through a shaft with a keyway, giving positive torque transmission into pulleys or gearboxes without relying on friction alone.

The motor includes features for accurate mounting and load holding at standstill. A blocking brake supplies 6.5 Nm of static torque, letting vertical axes stay fixed when power is removed. The front flange carries a centering boss of 110 mm, establishing the reference datum for repeatable alignment with machine frames. The motor has size 090 and length code B, which gives it the corresponding housing length for this frame. For high-resolution control loops, the signal channel uses digital servo feedback, allowing the drive to read encoder data over a noise-immune serial link and update current vectors without analog interpolation.