Patent ID: 8973271
Filing Date: 2015-03-10
Classification: B21D,F16C,Y10T

Abstract:
1. A method for manufacturing an integral duplex bearing, the integral duplex bearing having an outer ring, a first inner ring, and a second inner ring, the method comprising: forming a first outer raceway and a second outer raceway in an inner surface of the outer ring, the outer ring having an inner surface diameter; forming a first inner raceway in an outer surface of the first inner ring and a second inner raceway in an outer surface of the second inner ring while the first inner ring and the second inner ring are joined together, the first inner raceway and the second inner raceway formed with an orientation relative to each other, the first and second inner rings each having an outer surface diameter less than the inner surface diameter of the outer ring such that the first and second inner rings may be positioned inside the outer ring with the first inner raceway located adjacent to the first outer raceway and the second inner raceway located adjacent to the second outer raceway; separating the first inner ring from the second inner ring; positioning the first inner ring inside the outer ring such that a first plurality of balls contact at least a portion of both the first inner raceway and the first outer raceway; and positioning the second inner ring inside the outer ring such that a second plurality of balls contact at least a portion of both the second inner raceway and the second outer raceway, wherein the first inner raceway and the second inner raceway are positioned in the same orientation in which they were formed.