Product Description:

The MDD090A-N-040-N2L-130GA0 is a motor for digital drive controllers from Bosch Rexroth Indramat in the MDD Synchronous Motors series. As a compact AC servo unit, it converts commanded current into controlled rotary motion for automated handling equipment, packaging stations, and general machinery. Its design combines electronic commutation with a permanent-magnet rotor, allowing the connected drive to regulate position, speed, and torque in a closed loop. This arrangement supports fast response during repeated starts, stops, and direction changes on coordinated machine axes. It is suited to servo axes that require accurate synchronization with conveyors, transfer units, or rotary tables.

A centering diameter of 130 mm aligns the flange precisely on the machine frame, while power and feedback leads exit on Side A through a keyed connector that keeps cable routing straightforward in compact installations. During continuous stall operation, the stator can deliver 3.7 Nm of torque, which gives the axis a stable holding capability against load changes at very low speed. Because the unit is supplied without a blocking brake, vertical axes need an external holding method when position must be maintained during power loss. The motor also uses standard dynamic balancing and a standard cast housing, supporting smooth running and predictable integration with adjacent machine parts.

Dynamic performance is capped by a nominal speed of 4000 rpm, giving the drive a broad operating range for rapid indexing cycles and quick positioning moves. Rotor position is reported through integrated digital servo feedback, so the controller can monitor shaft motion continuously during acceleration, deceleration, and settling. That integrated feedback arrangement reduces the need for separate position sensing hardware around the drive train. A machined plain shaft is supplied in the standard length with no rear extension, and it uses a shaft seal to limit lubricant ingress. The compact 090 frame with A length helps the motor fit multi-axis assemblies where installation space is limited.