Product Description:

Bosch Rexroth Indramat designed the MDD090A-N-020-N2L-130GA2 for motion axes that rely on closed-loop digital drives. As a member of the MDD Synchronous Motors series, the unit converts electrical commands into precise rotary movement for indexing tables, packaging stations, and light machining spindles. Its plain shaft and integrated blocking brake allow the motor to start, stop, and hold loads accurately in automated cells that require repeatable positioning. This arrangement suits applications where stable motion and reliable holding are needed during frequent cycle changes.

The stator can sustain a continuous standstill torque of 3.7 Nm, allowing the axis to support fixtures without overheating during idle clamping. Under rated excitation, the rotor reaches 2000 rpm, which suits gearless medium-inertia mechanisms. When power is removed, the brake applies 11.0 Nm to keep suspended loads stationary. Mechanical alignment is simplified by a centering pilot of 130 mm, and cable routing is straightforward because all power and feedback plugs emerge on Side A of the housing. The housing is the standard version without integrated cooling, so surrounding airflow is responsible for removing heat during operation.

Feedback to the drive is supplied through digital servo feedback (DSF), which supports precise position control without an external encoder package. Electrical terminations use a keyed connector for matching series cables, helping keep installation straightforward. The motor has frame size 090, and the hardened plain shaft passes through a shaft seal that helps keep dust and coolant away from the bearings. The motor length code A keeps overall depth low where mounting space is limited. Standard balancing and the single-ended shaft arrangement support smooth running during repeated motion cycles.