Product Description:

The MDD090A-N-020-N2L-130PL0 is a synchronous motor manufactured by Bosch Rexroth Indramat in the MDD Synchronous Motors series. Intended for digital drive controllers, it provides regulated rotary motion for positioning tables and other automated axes that demand fast feedback and accurate speed control. Permanent-magnet excitation with electronic commutation lets the unit convert drive power into torque delivered through its single shaft end to couplings or gearboxes inside machinery.

Its mechanical interface begins with a centering pilot of 130 mm, allowing accurate alignment against a machine flange. The rotor is dynamically balanced to the standard grade, reducing vibration at operating speed. The housing uses a standard enclosure design, and frame size 090 keeps the stator diameter moderate for compact machinery. A motor length coded as A keeps the active stack short, so mass and inertia stay low for rapid acceleration. Once energized, the motor can sustain a continuous standstill torque of 3.7 Nm, allowing it to hold a load at zero speed without overheating. Under rated drive voltage, the shaft reaches a nominal speed of 2000 rpm, giving the drive a practical operating range for velocity control. Power and feedback conductors exit on the left side through a keyed circular connector that mates with the drive cable set.

Control precision is enhanced by the integrated digital servo feedback encoder, which supplies absolute rotor position data directly to the drive. Because the model is delivered without a blocking brake, any static holding duty must be handled by the drive’s torque or an external clamp. A factory-installed shaft seal surrounds the output journal to limit dust and fluid ingress, while the machined keyway transmits torque into standard hub connections. The single-ended shaft configuration avoids a side-B extension, simplifying mounting in tight spaces while remaining compatible with couplings that follow the DIN key profile.