ROLLING BEARING

摘要

There is provided a rolling bearing including: inner and outer members, rolling elements in a raceway space, flexible annular sealing members which close openings at both ends of the raceway space, and annular metal shield members. Each sealing member is formed in three-dimensional shape such that the sealing member in a natural state is convex inwardly between outer and inner circumferential edge portions and the inner circumferential edge portion is elastically in surface contact with the outer surface of the inner member when the sealing member is fitted to the outer member. Each metal shield member is fixed to the outer member in a state that the outer circumferential edge portion of each sealing member is sandwiched between the metal shield member and the outer member. Each metal shield member covers part of each sealing member without contacting the inner member.

主权项

1. A rolling bearing comprising:
an inner member having an inner race surface; an outer member having an outer race surface which forms an annular raceway space between the outer race surface and the inner race surface; a plurality of rolling elements arranged in the raceway space; flexible annular sealing members which close openings at both ends in an axial direction of the raceway space respectively; and annular metal shield members provided at outer sides of the sealing members in the axial direction respectively, wherein each of the sealing members has an outer circumferential edge portion and an inner circumferential edge portion which contacts an outer surface of the inner member; each of the sealing members is formed in a three-dimensional shape such that the sealing member in a natural state is convex inwardly in the axial direction between the outer circumferential edge portion and the inner circumferential edge portion, and the inner circumferential edge portion of the sealing member is elastically in surface contact with the outer surface of the inner member when the sealing member is fixed to the outer member; each of the metal shield members is fixed to the outer member in a state that the outer circumferential edge portion of each sealing member is sandwiched between the metal shield member and the outer member; and each of the metal shield members covers at least part of each sealing member without contacting the outer surface of the inner member.