| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a screw compressor in which a bearing for removably supporting a driving shaft can be easily replaced.SOLUTION: An inner ring 211 of a cylindrical roller bearing 21 for removably supporting a driving shaft 83 is formed as a double-rib ring with ribs being formed from both width-direction ends toward an outer periphery, and an outer ring 212 is formed as a rib-less ring having an inner diameter larger than an outer diameter (a diameter of a tooth tip circle) of a driven gear 87 to be fixed to the driving shaft 83. Then, an outer ring fixing part 23a for receiving the outer ring 212 from a cylinder 73 side and having a width W equal to or larger than a width (w) of the outer ring 212 is formed in a through-hole 23 formed in a casing 70. A latching part 23b having a diameter larger than an outer diameter of the driven gear 87 and a diameter smaller than an outer diameter of the outer ring 212 and protruding toward an inner peripheral direction of the through-hole 23 is provided near an end part of the through-hole 23 at a side opposite to the cylinder 73. The outer ring 212 inserted into the outer ring fixing part 23a is held and fixed between the end surface of the latching part 23b and a snap ring 25.</p> |
