Product Description:

The MDD090C-N-040-N2M-110GB0 is an AC servo motor built by Bosch Rexroth Indramat within the MDD Synchronous Motors series. It is intended for use with digital drive controllers, where commanded stator current is converted into accurate rotary motion for positioning, feed, and handling axes in automated equipment. A standard housing encloses the stator, while the rotating assembly is balanced to a standard grade to help limit vibration during high-speed operation. Power and feedback lines terminate through a sealed connector, and the motor is supplied without a blocking brake, so holding force must be provided externally when power is removed. That arrangement keeps the motor compact and reduces the number of external components around the axis. This layout suits machine designs that need accurate servo response in a compact package.

A centering pilot of 110 mm aligns the flange with adjoining machine surfaces. The rotor can deliver up to 10.4 Nm at standstill, which supports static load holding without overheating. The motor has a rated speed of 4000 rpm, giving the axis a wide operating range for fast traverse moves. Cabling exits on side B, which can simplify routing in compact installations with rear-facing cable paths. The output uses a plain shaft, making it suitable for clamp or collet couplings, and the opposite shaft end is omitted to save axial space. Because the shaft is smooth rather than keyed, torque transfer depends on the clamping force of the selected coupling.

The stator uses motor length code C, which matches the thermal capacity and electromagnetic depth of this frame. Position data come from an integrated multiturn absolute encoder, and the digital servo feedback signal lets the drive monitor shaft position immediately after power-up. Multiturn feedback also preserves position information across multiple revolutions, which helps on axes that cannot be re-referenced after every stop. The frame is identified as motor size 090, a common format for mid-power servo axes that need a compact mounting envelope. The shaft exit is equipped with a shaft seal to help protect the bearings from dust and coolant spray. This arrangement supports closed-loop motion control without requiring a separate external feedback device.