Product Description:

Bosch Rexroth Indramat manufactures the MDD090A-N-020-N2M-130PL0 servo motor as part of the MDD Synchronous Motors series. The unit pairs with digital drive controllers where closed-loop position and velocity control are required on handling axes, packaging machines, and assembly stations. By converting drive current into controlled mechanical rotation, the motor supplies repeatable torque and speed. Its frame size 090 and length code A create a compact footprint suited to installations where available mounting space is limited and responsive axis motion is required.

The motor’s electromagnetic output includes a continuous torque at standstill of 3.7 Nm, allowing static load holding and low-speed indexing without overheating. Under rated conditions, the rotor can reach 2000 rpm, a speed that aligns with common gearbox ratios used in industrial motion systems. Accurate mechanical alignment during installation is supported by a 130 mm centering diameter that matches mounting flanges in the 90-frame class. Cabling exits on the left side, and a molded connector carries both power and feedback conductors in one connection point. Position data returns to the drive through digital servo feedback, which supports stable closed-loop regulation during acceleration, deceleration, and low-speed operation. The motor also uses a standard housing and standard balancing, helping it fit typical machine layouts without unusual mounting requirements.

An integrated multiturn absolute encoder reports both angular position and cumulative revolutions, so the control system retains position information across multiple turns. The output shaft uses a keyway, which provides secure torque transfer to couplings, pulleys, or gear inputs during repeated motion cycles. A dedicated shaft seal helps protect the front bearing area from coolant spray and fine dust in general machine environments. Because the unit is supplied without a blocking brake, holding force at rest must come from the drive or an external latch. This arrangement is often suitable for horizontal axes where the machine does not rely on a built-in brake to hold a suspended load.