R911283984 (MKD112D-027-GG3-BN)

MKD Synchronous Motors

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The Bosch Rexroth MPN R911283984 (MKD112D-027-GG3-BN) is a synchronous servo motor designed for industrial automation, featuring natural or surface cooling with a radial cooling system. It operates at a characteristic speed of 3000 min⁻¹ and has a peak current of 142.2 A. The motor provides continuous torque at standstill of 48.0 Nm, with a continuous current range from 31.6 A to 47.4 A, and yields a maximum theoretical torque of 187 Nm. Electrical properties include a voltage constant of 154.5 V/1000 min⁻¹, winding resistance of 0.35 Ω, inductivity of 5.65 mH, and 4 pole pairs. The shaft is plain with sealing, and the holding brake produces 70 Nm of torque. A resolver (RSF) is used for encoder feedback, with relative position detection. The motor is equipped with a multiturn absolute encoder, has a centering diameter of 130 mm, motor length D, and size 112. It is suitable for mounting at 1000 m above sea level, and intended operating and storage temperatures are 0–40°C and -20–80°C, respectively. The rotor moment of inertia is 350×10⁻⁴ kg·m², weight is approximately 56 kg, and lifetime-lubricated bearings are used.