| 摘要 |
The present invention provides a rolling bearing capable of suppressing the generation of retainer noise and abnormal vibration by specifying the circumferential width of axial grooves formed on the guide face of an outer ring guide retainer or an inner ring guide retainer. In a rolling bearing 1 according to the present invention, axial grooves 13 are formed on the outer circumferential face of the outer ring guide type retainer 10 thereof. The displacement amount xo of the center position of the retainer 10, the outer diameter Doc of the retainer 10, the guide diameter Dog of the outer ring 2, the circumferential width h of the axial grooves 13, the guide clearance DeltaLc between the outer ring 2 and the retainer 10, and the clearance DeltaP between the pocket 11 and the rolling element 4 satisfy the following relational expressions: [ Mathematical ⁢ ⁢ expression ⁢ ⁢ 1 ] ⁢ x o = 1 2 ⁢ ( D oc - D og + D og 2 - h 2 - D oc 2 - h 2 ) ( 1 ) [ Mathematical ⁢ ⁢ expression ⁢ ⁢ 2 ] ⁢ Delta ⁢ ⁢ L o + 2 ⁢ ⁢ x o Delta ⁢ ⁢ P < 1 ( 2 ) are satisfied. |
