SCROLL MACHINE, SCROLL MEMBER, AND METHOD OF MANUFACTURING THE SCROLL MEMBER

摘要

PROBLEM TO BE SOLVED: To compensate for a displacement of a bearing from a cylindrical shape produced due to the nonuniform bending of a hub and the bearing caused by the press-fitting of the bearing into the hub of a swing scroll member. SOLUTION: A hub hole 92 extending vertically from a swing scroll member 56 is formed in a truncated cone shape, and a bearing press-fitted into the hole due to a nonuniform bending of the hub and bearing produced when the bearing is press-fitted into the hole is formed in a more cylindrical shape than a conventional one. The hub hole is formed so that the diameter 98 of a closed end thereof is larger than the diameter 96 of an open end thereof.