Patent ID: 8128308

Claim:
A bushing installation comprising: a work member including a first side, a second side, and a tubular surface defining an opening extending between the first side and the second side; a first bushing comprising a first flange on the first side of the work member and a first tubular body within the opening, the first tubular body including a first end, a second end opposing the first end, and a first outer surface between the first and the second ends, the first outer surface facing the tubular surface of the work member and defining a first outer circumference, the first flange connected to and extending outwardly from the first end; and a second bushing comprising a second flange on the second side of the work member and a second tubular body within the opening, the second tubular body including a first end, an opposing second end adjacent to the second end of the first tubular body, and a second outer surface between the first and the second ends of the second tubular body, the second outer surface facing the tubular surface of the work member and defining a second outer circumference that is substantially equal to the first outer circumference, the second flange connected to and extending outwardly from the first end of the second tubular body, wherein the first and the second bushings have been radially expanded to provide substantially equal radial expansion of the opening throughout at least most of a longitudinal length of the opening such that fatigue life enhancing compressive stresses are provided along most of the tubular surface of the work member.