| 摘要 |
PURPOSE:To prevent lopsided contact of a main spindle and the damage of a contact face between a main bearing and said main spindle due to a foreign matter in oil by projecting the upper end part of a lower side main bearing formed on a bearing frame, into a lubrication passage formed in said bearing frame, in an enclosed scroll compressor. CONSTITUTION:A cylindrical lubrication passage 26 which introduces part of oil scooped up into an eccentric hole 24, to the lower side main bearing 16 of a main spindle 5 via an oil hole 25, is provided on the inner periphery of a lower bearing frame 7 through which the main spindle 5 passes. The upper end part 16a of the lower side main bearing 16 is projected into the lubrication passage 26 and a space 29 for catching a foreign matter in oil is formed on the outer periphery of the upper end part 16a. By this structure, the damage of a contact face between the lower side main bearing 16 and the main spindle 5 due to a foreign matter in oil can be prevented while the falling down of the main spindle 5 can be absorbed by the deflection of the upper end part 16a of the lower main bearing 16, thereby, preventing the lopsided contact of the main spindle 5.
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