| 摘要 |
PROBLEM TO BE SOLVED: To prevent a foreign matter from being caught between a roller and a spindle, in a roller supporting device which supports the roller by the fixed spindle. SOLUTION: A cutout part 11 is formed in a spindle 7, so that an oil passage 12 extended to an axial direction can be formed between a roller 6 and the spindle 7. Both axial sides of this oil passage 12 are opened to the outside. Lubricating oil supplied from an oil supply hole 15 to the inside of the oil passage 12 is led to flow into both axial sides in the oil passage 12, and led to flow out from an opening part to the outside. Therefore, even though a foreign matter is included in the lubricating oil, the foreign matter can be quickly delivered to the outside taking advantage of the lubricating oil led to flow in the oil passage 12. |
