Bearing assembly for a connecting rod

摘要

A bearing assembly including a connecting rod (30) with a first end (32) and a second end (36), the second end (36) defining a first outer raceway (44a) and a second outer raceway (44b) with a thrust ring (60) therebetween, a crankshaft (10) defining a cylindrical inner raceway (14), a first plurality of radial roller elements (52a) disposed between the first outer raceway (44a) and the inner raceway (14), and a second plurality of radial roller elements (52b) disposed between the second outer raceway (44b) and the inner raceway (14). An axial length of at least one of the first radial roller elements (52a) is greater than an axial length of the first outer raceway (44a) and the axial length of at least one of the second radial roller elements (52b) is greater than an axial length of the second outer raceway (44b).

主权项

1. A bearing assembly comprising:
a connecting rod with a first end and a second end, the first end defining a cylindrical aperture with a thrust ring depending radially inwardly therefrom such that the cylindrical aperture defines a first outer raceway and a second outer raceway on opposite sides of the thrust ring, the thrust ring including an outer circumferential surface and a pair of parallel sides depending radially inwardly therefrom that define opposed first and second bearing surfaces, the thrust ring being received in an annular groove that extends radially outwardly from an inner surface of the cylindrical aperture; a crankshaft defining a cylindrical inner raceway disposed between a pair of opposed inner walls; a first plurality of radial roller elements disposed between the first outer raceway and the inner raceway, each of the first radial roller elements having a first end face, an opposed second end face and defining an axial length therebetween; and a second plurality of radial roller elements disposed between the second outer raceway and the inner raceway, each of the second radial roller elements having a first end face, an opposed second end face and defining an axial length therebetween, wherein the axial length of at least one of the first plurality of radial roller elements is greater than an axial length of the first outer raceway and the axial length of at least one of the second plurality of radial roller elements is greater than an axial length of the second outer raceway, the first end face of the at least one of the first plurality of radial roller elements contacts the first bearing surface of the thrust ring and its second end face extends axially outwardly beyond the first outer raceway, and the first and second outer raceways are continuous along their lengths.