BEARING STRUCTURE IN FLUID MACHINE AND JIG FOR DEMOUNTING BEARING

摘要

PROBLEM TO BE SOLVED: To easily replace a bearing in a fluid machine in a short time. SOLUTION: A pair of jig insertion holes 132 and 133 are formed around an annular accommodation recessed part 46 accommodating a radial bearing 21. The jig insertion holes 132 and 133 are connected to a bottom 461 of the accommodation recessed part 46 along a side part of the accommodation recessed part 46 from an outer end face 131 of a front housing 13 in the direction of an axis 191 of a rotary shaft 19. The jig insertion holes 132 and 133 are formed on rotational symmetrical positions of 180 deg. on an axis 191 of the rotary shaft 19 as a center. Latching arms 52 and 53 of the bearing demounting jig 48 are inserted into the jig insertion holes 132 and 133, and hooks 521 and 531 are latched on end parts 213 of outer rings 212 of the. radial bearing 21.