YHS-1 three-layer compound material which is composed of plastic cement-bronze-steel backing Application Feature: Oilless lubrication or little oil lubrication, applicable to places unable or difficult to add oil, while using, no maintenance or less maintenance High wearing resistance, low friction coefficient, long service life Proper elasticity can extend the stress to wider contact surface, hence to enhance carrying capacity of bearing. Static friction coefficient approaches to avoid climbing under low speed, hence guaranteeing working precision of precise machinery High adaptability, available to work from -195℃ to +280℃ Good break-in performance, scraping is unnecessary for assembly. It can lower mechanical vibration, lessen noise, prevent environmental pollution and improve working conditions. Transfer membrane is formed at work to protect the mating shaft to improve running properties. Low demand on mating shaft, shafts without thermal refining are available for application, and then the processing of relevant parts becomes easier. Thin wall structure, light weight, flexible mechanical volume. No water and oil absorption, low coefficient of thermal expansion, good heat dissipation, stable dimension Plating of steel backing is permissible, therefore it is applicable in corrosive medium without rust.