| 摘要 |
PROBLEM TO BE SOLVED: To prevent contact of a boundary part between a roller end face and a chamfered part with inner and outer ring flanges, in a cylindrical roller bearing. SOLUTION: In a cylindrical roller bearing having a cylindrical roller 4 where a chamfered part 4c is formed between the roller end face 4a and a roller rolling surface 4b, a cone shape part 4d of an oblique angleαis formed in a range up to the chamfered part 4c of the roller end face 4a and on an outline extending in the radially external direction of a cylindrical roller end face outer peripheral part.
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