| 摘要 |
PROBLEM TO BE SOLVED: To provide a cage excelling in performance in introducing a lubricant into a cylindrical roller bearing.SOLUTION: A cage 50 is used in a cylindrical roller bearing. The cylindrical roller bearing is used in a gear transmission. In the cage 50, a plurality of protrusions 50d are provided at each of both end faces 50b in a bearing center axis direction. When a regulating member for regulating the axial movement of the cylindrical roller bearing contacts the cage 50, the protrusions 50d contact the regulating member. A clearance is therefore secured between the end face 50b of the cage 50 and the regulating member. A lubricant is introduced into the cylindrical roller bearing from the clearance. |
