Patent ID: 6658837
Filing Date: 2003-12-09
Classification: F16G

Abstract:
Chain comprising: a plurality of chain members, each chain member having two inner flat links arranged parallel to one another, and two generally cylindrical bushes disposed between the inner flat links, the two inner flat links connecting the two bushes of a given chain member to one another, the bushes having end portions extending laterally outside outer surfaces of the inner flat links, a bolt rotatably extending through each bush, the bolts having ends extending laterally beyond the end portions of the bushes, and pairs of parallel outer flat links having ends fixed to the bolt ends so that each pair of parallel outer flat links connects adjacent chain members together in a series, the outer ends of the bushes including at least one lubricant slot extending from an outer radius to an inner radius of each bush end portion, each lubricant slot having a depth that varies between the outer and inner radii of each bush.