Patent ID: 6231242
Filing Date: 2001-05-15
Classification: F16C,G01M

Abstract:
A double row ball bearing, comprising:an inner race having first and second inner race raceways on its outer peripheral surface;an outer race having first and second outer race raceways on its inner peripheral surface; anda plurality of freely rolling balls respectively incorporated into a space between said first inner race raceway of said inner race and said first outer race raceway of said outer race and into a space between said second inner race raceway of said inner race and said second outer race raceway of said outer race; anda couterbore portion provided in the first one of said outer race raceways,wherein said balls are incorporated in a maximum manner into the space between said first outer race raceway and said first inner race raceway, andwherein the diameter dimension of each ball to be incorporated in the maximum manner into the space between said first outer race raceway and said first inner race raceway is in the range from 22% to 25% both inclusive of an outside diameter dimension of said outer race.