| 摘要 |
PURPOSE: A rotary shaft assembled body of a turbo compressor is provided to reduce support load of a bearing by minimizing the outer diameter and weight of a rotary shaft supported by the bearing with transmitting rotary force of a motor. CONSTITUTION: A rotary shaft assembled body of a turbo compressor includes a rotary shaft(20) having predetermined length and diameter, and coupled with impellers(10,11) at both end parts, a load body(2a) coupled with the rotary shaft, an axial diameter expansion member(30) fixedly coupled with the rotary shaft for expanding the diameter of the rotary shaft, and a bearing(R) supporting the rotary shaft by supporting the axial diameter expansion member.
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