SF1 is wall wrapped bearing of triple layer composites material
which consists of a steel backing, a sintered porous bronze
particles inerlayer and calendared with PTFE and Pb Mixture as
surface layer. It is of low friction coefficient, antiwear,
anticorrosion and can be used withour oil, or only a trace of oil
so needed. Moreover, it is of low cost, low vibration and low nisei,
compact and light.SF1 is widely applied in various sliding articles
of different kind of machines such as textile machines, tobacco
machines, hydraulic vehicles , automobiles.