| 摘要 |
PROBLEM TO BE SOLVED: To smoothly take lubrication oil from an outer ring oil supply hole into a bearing. SOLUTION: In an outer ring 11 of a roller bearing 10, collar parts 16 facing inward are formed on both end parts of an inner diameter surface, a raceway surface 15 is formed on the inner diameter surface between the collar parts 16 on the both sides, and oil supply holes 17 having openings are provided on the raceway surface 15. The oil supply holes 17 are provided close to the both side parts of the raceway surface 15. COPYRIGHT: (C)2011,JPO&INPIT
|
