| 摘要 |
A screw compressor 1 comprises a screw compressor body 2 having a pair of female and male screw rotors 21 meshed with each other encased in a rotor casing 22, and a motor casing 4 having a motor 3 for driving a male rotor 21b of the screw rotor 21 encased therein. The screw compressor body 2 and the motor casing 4 are connected integrally. The male rotor 21b and the motor 3 are connected by a common rotor shaft 23. In the common rotor shaft 23, the counter motor 3 side is supported by a rolling bearing and a projecting end of the motor 3 is supported by a rolling bearing 7 on the motor side, and a portion between the motor 3 and the screw rotor 21 is supported by an intermediate rolling bearing 6.
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