Product Description:

The MDD090A-N-040-N2M-130GB1 is a synchronous servo motor manufactured by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Designed for digital drive controllers, it converts controlled AC power into precise rotary motion for positioning axes and process drives in automated machinery. This motor type is suited to applications that require repeatable speed and position control during indexing, transfer, and process movement. The A length code and 090 frame size keep the motor compact, while the standard housing allows installation in general-purpose enclosures. Its mechanical interface is prepared for a centering seat on the mounting flange so alignment with gearboxes or couplings remains repeatable.

The motor reaches a nominal speed of 4000 rpm, providing adequate surface velocity for fast traverse moves. At standstill, it produces a continuous torque of 3.7 Nm, so low-to-medium inertia loads can be held without overheating. A centering diameter of 130 mm matches the flange recess on compatible machine frames and helps maintain coaxial alignment. All power and feedback conductors exit on the rear because the connections are on side B, and a round connector simplifies cable routing. Standard dynamic balancing keeps residual vibration within normal operating limits during rotation.

In static holding situations, a blocking brake rated at 6.5 Nm prevents uncommanded motion when power is removed. Rotor position is measured by an integrated multi-turn absolute encoder, and the signal is returned over digital servo feedback lines for closed-loop control. This arrangement gives the drive immediate position information after power is restored. The output end is a plain shaft with a shaft seal that limits lubricant escape and contaminant ingress. Because the shaft end is omitted on the opposite side of the rotor, the housing stays short and leaves more clearance for nearby machine elements.