| 摘要 |
PROBLEM TO BE SOLVED: To surely fix a seal to the other party mounting member without using an adhesive, thereby preventing the seal from co-rotating by shear resistance when the seal drops out or rotates in a seal structure for suppressing the leakage of grease and the entry of an outside foreign material by attaching the seal between an outer ring and an inner ring of a bearing.SOLUTION: A seal integrally includes a fixing part fixed to a mounting member being either of an outer ring and an inner ring and a seal lip closely in contact with the other party sliding member being the other, and is formed of a rubber elastic body. The fixing part includes first and a second annular protrusions 13 and 14, and also an annular recess 15 between both the protrusions. The first annular protrusion 13 is press-fitted into a first annular groove 63 formed at the mounting member with tightening interference in a radial direction, the second annular protrusion 14 is press-fitted into a second annular groove 64 with tightening interference in the radial direction and an annular projection 65 between both the grooves is press-fitted into the annular recess 15 with the tightening interference in the radial direction. Both the protrusions 13 and 14 sandwich the annular projection 65 from both sides in an axial direction. |
