BREAK-IN COATING ON TRACK ASSEMBLY COMPONENTS

摘要

During the break-in period of track (22) assembly components, galling can occur between the components during use. The components include a pin (68) that is received within a bushing (70) and alternatively a sleeve bearing (74) between the pin (68) and the bushing (70) depending on the load. A method to prevent or reduce galling includes applying a coating (78) of zinc phosphate and a low-friction layer (76) on top of the zinc phosphate (78). The low-friction coating (76) can be made of WS2 (Tungsten Disulphide), BN (Boron Nitride), MoS2 (Molybdenum disulfide) or PTFE (Polytetrafluoroethylene) and deposited during a mechanical treatment.