R911252253 (MDD093C-N-020-N2M-110GB1)

MDD Synchronous Motors

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The Bosch Rexroth MPN R911252253 (MDD093C-N-020-N2M-110GB1) is a digital AC servomotor engineered to accommodate significant axial and radial forces, featuring a standard housing and a weight of 22 kg. It supports thermal deformation up to 0.6 mm at the shaft end. The unit includes a plain shaft with seal, centering diameter of 110 mm, and blocking brake providing 11 Nm holding torque. Motor feedback is delivered via an integrated multiturn absolute encoder with ±0.5 angular minutes accuracy across 4096 revolutions and digital servo feedback (DSF). The nominal speed is 2000 min⁻¹, and winding inductance is 6.1 mH. Cooling is achieved through natural convection and additional radial surface air flow, while all electrical connections—including power, brake, and temperature sensor—are integrated in connector form on side B. The blower is designed to function independently of the drive controller. All handling and maintenance should be performed by qualified personnel to maintain shaft integrity.