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YK2 series three phase asynchronous motors are designed for screw compressors, and the housing is made of high strength cast iron. Terminal box position could be on the top or the side. Motor size is ranged from H132 to H315, mounting arrangements are IMB3 and IMB35. Service factor could be 1.15 or 1.2 or 1.25. Temperature rise should be tested according to class B at an rated load, the motor temperature examined by 90K and the bearing temperature should not exceed 95C.