Abstract: A plug-in tubular carrier pin is provided for a chain assembly. The pin is larger in diameter than conventional carrier pins and has a plug pin insertable into one end of a cylindrical body being held in place by a crimp in the cylindrical body. A rounded nose is either integrally formed with the cylindrical body or inserted into the end opposite the plug pin and held in place by an additional crimp.

Abstract: Bicycle Chain is made of alternating bushing links and pin links. The bushing links have parallel bushings held in interference fit in bushing plates and extended axially beyond the bushing plates, solid metal rolls with a lubricating plating are held loosely on the bushings, and loosely between the bushing plates. The bushings extend axially outward beyond the bushing plates for substantial distances. Pins extend through the bushings and are fixed in pin plates to form pin links which alternate with the bushing links. The pin plates are held outward from the bushing plates for a substantial amount by the axial bushing extensions to prevent dirt build up. The pin plates, bushing plates and bushings are plated with an anti-corrosion plating. The pins and rolls are plated with a porous metal plating with solid polymeric lubricant held within pores of the plating for lubricating the pin-bushing interior interface and for lubricating the roll-bushing and roll-bushing plate interfaces.

Abstract: Chain having increased life is constructed similar to conventional power transmission and conveyor chain with the exception that the increased-life chain has enlarged bushing receiving openings in link plates.