R911247428 (MDD090C-N-020-N2L-110PA0)

MDD Synchronous Motors

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The Bosch Rexroth MDD Servo Motor R911247428 (MDD090C-N-020-N2L-110PA0) is a permanent magnet-excited synchronous motor. It's optimised for rapid-response automation systems when paired with Indramat digital drive controllers. The motor boasts high overload capacity due to efficient heat transfer from its stator windings to its housing. It comes equipped with a temperature monitoring system to prevent overheating and damaging overload conditions. Designed for cooling via natural convection and surface cooling, the motor is relatively maintenance-free thanks to its brushless design and lifetime-lubricated bearings. The R911247428 (MDD090C-N-020-N2L-110PA0) complies with the DIN VDE 0530 balance class R for demanding applications, while its compact build ensures a high power-to-weight ratio. The digital servo feedback encoder and output shaft are designed to standard DIN 6885. With a nominal speed of 2000 RPM and theoretical maximum torque of 58.6Nm, it's enclosed in a sealed housing for protection against intrusions and sprays, earning an IP 65 rating under EN 60529.