R911255838
Product R911255838 (MDD090B-N-020-N2M-110PA0), a model from the Bosch Rexroth MDD servo motors series, is a high-performance, maintenance-free, synchronous servo motor with an advanced electronic commutation system. With a nominal speed of 2,000 rpm, it delivers maximum efficiency, even under demanding conditions. The peak rated current for this motor is 48.6A. The built-in rotor employs a permanent magnet composed of rare earth and iron oxide, ensuring low inertia and high dynamics. It also features a thermal sensor in the stator winding to safeguard against thermal overloading. This motor exhibits an excellent heat dissipation mechanism from the stator to the housing walls, thus enabling a higher overload capability.
Designed according to Balance Class R per DIN VDE 0530, R911255838 (MDD090B-N-020-N2M-110PA0) is fitting for rigorous applications such as grinding machines. It employs digital servo feedback with an integrated multiturn absolute encoder for accurate system responses. The output shaft of this servo motor employs a keyway as per DIN 6885-1 and is sealed with a shaft sealing ring. It incorporates a centering diameter of 110mm and can generate a theoretical maximum torque of 39.0Nm, making it an ideal choice for applications demanding precise torque transmission. This servo motor supports both natural convection and surface cooling systems, making it suitable for high-load applications including continuous, start-stop operations.
