Patent ID: 6817770
Filing Date: 2004-11-16
Classification: F16C

Abstract:
A single row deep groove radial ball bearing comprising:an inner ring having a deep groove inner ring raceway provided at an outer circumferential surface of said inner ring; an outer ring having a deep groove outer ring raceway provided at an inner circumferential surface of said outer ring; and a plurality of balls rotatably provided between said inner ring raceway and said outer ring raceway; wherein at least one of said inner ring raceway and said outer ring raceway has a cross-sectional shape in which a transversely central portion thereof is different in a radius of curvature from transverse end portions between which said transversely central portion is interposed; and wherein transverse end edges of said portions having different radius of curvatures are made to be smoothly continuous with each other; and wherein the radius of curvature of the transversely central portion is set to be in the range of 50.5% to 52% of the outside diameter of the ball.