| 摘要 |
A vane-type rotary compressor is provided with front and rear side plates for closing both axial ends of a cam ring, are provided boss sections for receiving bearing for rotatably supporting rotor shaft, and a flange sections radially extending from the associated boss sections. The boss section and the flange section are made of different material and formed into integral form by insert casting. Namely, the boss section is made of a material having a linear expansion coefficient substantially equal to the linear expansion coefficient of a bearing. Furthermore, the boss section is formed with one or more radially extending projections.
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