Patent ID: 6086262
Filing Date: 2000-07-11
Classification: F16C

Abstract:
A roller bearing comprising an inner ring, an outer ring and a roller rotatably interposed between said inner and outer rings, wherein said roller (1) includes a head portion (1a), a rolling surface (1d), and a chamfered portion (1b) disposed between said head portion and said rolling surface, and at least one of said inner and outer ring includes a race track surface (2a, 3a), a main collar surface (Ta) contactable with said head portion, and a relief groove (Tn) disposed between said race track surface and said main collar surface,in which the radius r.sub.c of curvature at a joint between said head portion (1a) and said chamfered portion (1b) of said roller is not less than 0.2 mm.