Patent ID: 7048665

Claim:
A power transmission chain comprising: a plurality of interleaved inside links, each of the inside links having a pair of apertures, the inside links being interleaved and connected into a series of non guide rows; a plurality of guide links, each of the guide links having a pair of apertures, the guide links being placed outside of alternate rows of interleaved inside links to form guide rows; connecting pins comprising a rocker pin and a second pin received in the apertures, the rocker pin extending across the rows of all of the inside links, and the second pin extending across the rows of the chain and having ends secured within the apertures of the guide links thereby connecting the inside links and the guide links; spacing elements on opposite sides of the chain, located between the guide links and an adjacent outermost inside link, the spacing elements acting to maintain a spaced relationship between each guide link and outermost adjacent inside links, into which the rocker pin extends; wherein at least one of the spacing elements being a spring link spanning a first set and a second set of connecting pins, the first set of connecting pins associated with a first outermost inside link and a second set of connecting pins associated with a second outermost inside link, for holding the inside links in compressive frictional contact therebetween and wherein the rocker pin extends fully through the apertures of the outermost inside links in the non guide row into the spaced relationship between the guide links and the outermost adjacent inside links to provide full support of the outermost inside links.