The wear phenomenon of roller parts and the wear of bearing housings are two common problems. Field repair, avoid machining methods, for enterprises to save a lot of downtime, to create a huge production output value. The traditional method usually used after welding machine to repair, and will make the surfacing parts surface of high temperature components, causing deformation or cracks, caused by machining to obtain size downtime greatly extended. Using fushilan macromolecule composite material for on-site repair, no thermal effect, the thickness of repair is not restricted, giving products with wear resistance and metallic materials do not have contact, ensure the repair site 100% fit, reduce equipment shock, to avoid the possibility of wear.