TWO-PIECE RETAINER, AND TWO-PIECE ROLLER BEARING

摘要

PROBLEM TO BE SOLVED: To prevent loss of oil film by eliminating an angled part generated on a mated face of a two-piece retainer to improve lubrication performance of a bearing.

SOLUTION: The two-piece retainer 22 is composed by combining a pair of semicircular retainers 22a in an annular form includes a lubricating oil reservoir groove 28 having a groove wall face 29 which is a circular arc face formed on both the sides of the mated face 27 of the retainers 22a and a groove bottom 31 formed on a part including the mated face 27.

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