Product Description:

The MDD090A-N-020-N2L-110PB1 is a synchronous servo motor manufactured by Bosch Rexroth Indramat in the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts controlled electrical power into rotary motion for positioning axes and feed drives in automated machinery. The unit works with matching drive modules to provide precise velocity and torque regulation for coordinated multi-axis motion. By combining permanent-magnet excitation with electronic feedback, it supports the closed-loop operation required for repeatable production cycles and dynamic tool handling. This arrangement allows the motor and controller to respond quickly to changing load conditions during indexing, cutting, and transfer tasks.

The motor housing uses standard balancing to reduce residual vibration, and its centering diameter measures 110 mm, which provides the reference surface for flange mounting. Power and feedback leads exit on Side B, and a single connector plug simplifies cable attachment and removal. This layout keeps the cable exit on one side of the housing and helps maintain a clear routing path in machines with limited rear clearance. At standstill, the electromagnetic circuit can generate 3.7 Nm continuously, while the integrated blocking brake provides 6.5 Nm to hold the shaft when power is disconnected. Under rated excitation, the rotor reaches 2000 rpm, and digital servo feedback transmits position data to the drive so torque demand can be updated during each control cycle. That feedback channel also allows the controller to correct motion errors during acceleration and deceleration.

The mechanical interface uses size code 090, giving the motor a compact outer diameter for transfer lines and similar machine assemblies. A shaft seal helps prevent lubricant from entering the encoder cavity, and the keyway shaft provides a direct method of torque transfer without relying on shrink fits. The A length keeps the housing short so the moving mass remains lower during acceleration. The motor has a single shaft end, which leaves the opposite side closed and simplifies guarding in compact installations. It also leaves more space for couplings and nearby machine components at the drive end.