| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing capable of stably supplying grease between a tip edge of a seal lip and a sliding face of a mating material slid and kept into contact with the tip edge from the beginning of use without excessively increasing sealing quantity of the grease, thus abrasion of the seal lip is reduced, and durability can be improved. SOLUTION: In this rolling bearing 1 comprising an outer ring-corresponding member 2 having an outer ring raceway track 8 on its inner peripheral face, an inner ring-corresponding member having an inner ring raceway track 9 on its outer peripheral face, a plurality of rolling elements 10 rotatably mounted between the outer ring raceway track 8 and the inner ring raceway track 9, and seal devices 12a, 12b for closing an axial opening portion between an inner peripheral face of the outer ring-corresponding member 2 and an outer peripheral face of the inner ring-corresponding member 3, the seal device 12a has the seal lip 114 composed of an elastic material and circularly formed, and a slinger 106 with which the tip edge of the seal lip 114 is slid and kept into contact over the whole circumference, a grease reservoir 118 is formed near the tip edge of the seal lip 114, and the grease 117 is applied to the grease reservoir 118. COPYRIGHT: (C)2006,JPO&NCIPI
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