R911279912 (MHD112C-024-PP3-BN)

MHD Synchronous Motors

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The Bosch Rexroth synchronous servo motor R911279912 (MHD112C-024-PP3-BN) is engineered for precise operation in applications such as machine tools and automation systems. It features a maximum speed of 4000 RPM, an integrated holding brake delivering 70 Nm, and a digital multiturn absolute encoder for position feedback across more than 4096 revolutions. The motor is equipped with four pole pairs, winding inductivity of 6.7 mH, and winding resistance of 0.44 Ohms. At a rated speed of 2500 RPM, torque output is 16.6 Nm at 60K over-temperature and 32.6 Nm at 100K. The device is liquid cooled, has a keyed shaft with shaft seal, and supports side B power output via an output connector. Physical dimensions include a 130 mm centering diameter, 192 mm flange, overall length of 458 mm, and a weight of 45 kg. Optimal operating conditions are an ambient temperature of 0 to 40°C and altitude up to 1000 m.