| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cylindrical roller bearing capable of preventing a contact point of a cylindrical roller and a collar part from being deformed to a shape other than ellipse even when load in the axial direction is large and skew occurs. <P>SOLUTION: When the diameter of the cylindrical roller 16 is Da, the radius of curvature of a chamfered part 20 formed in a boundary part of a peripheral face 16a of the cylindrical roller 16 and an end face 16b is c, the height of a relief groove 22 for grinding formed in a boundary part of a raceway surface 12a of a bearing ring and an inner face 18a of the collar part 18 is h1, and the ratio of the height of the relief groove 22 to the diameter of the cylindrical roller 16 is h1/Da = 0.05 to 0.07, the radius of curvature of a chamfered part 22 for the diameter of the cylindrical roller 16 is set in the range of c= 0.08 Da to 0.18 Da. <P>COPYRIGHT: (C)2004,JPO |
