Angular contact ball bearing

摘要

An angular contact bearing including an inner ring and an outer ring. Each ring includes a raceway. A plurality of balls are in rolling contact with the raceways. The bearing includes a retainer having a width being the distance between a first side and a second side of the retainer, an outer surface extending between the first side and the second side and an inner surface opposing the outer surface. The retainer also has a central portion having a first thickness T1, and tapered portions each having a second thickness T2. Each tapered portion 1) extends from one of said sides to said central portion up to 28% of the length of said retainer width, 2) tapers towards the inner surface of the retainer at an angle of 20° or less relative to said central portion, and 3) tapers away from the inner diameter surface of the outer ring.

主权项

1. An angular contact bearing, comprising:
an inner ring including an outer diameter surface and a raceway defined in said outer diameter surface; an outer ring including an inner diameter surface and a raceway defined in said inner diameter surface; a plurality of balls in rolling contact with said raceways; a retainer piloted by the outer ring including
a first side and a second side opposing said first side, said retainer having a width being the distance between said first side and said second side,an outer surface extending between said first side and said second side and an inner surface opposing said outer surface extending between said first side and said second side, wherein said outer surface and said inner surface define a central portion having a first thickness T1 and said outer surface provides a double taper, wherein said double taper is formed by a first tapered portion that increases in thickness from said first side to said central portion and extends up to 28% of the length of said retainer width, and a second tapered portion that increases in thickness from said second side to said central portion and extends up to 28% of the length of said retainer width,wherein said tapered portions are formed by tapering said outer surface away from said inner diameter surface of said outer ring and said inner surface is flat,wherein said tapered portions each having a second thickness T2,wherein each tapered portion is tapered at an angle of 20° or less relative to said central portion, andsaid second thickness T2 is less than said first thickness T1,wherein a first annular gap G1 is present between said outer ring and said outer surface of said central portion of said retainer and a second annular gap G2 is present between said inner surface of said retainer and said inner ring, wherein the thickness of said first annular gap G1 is less than the thickness of said second annular gap G2; and a plurality of through holes defined in said retainer, wherein one of said balls is positioned in each of said through holes in a rotatable manner.