SF-2 Boundary lubrication bearing steel is for substrate, middle sintering spherical bronze powder ... ...

SF-2Y Boundary lead-free bearing is improved on the basis of SF-2. Its performance with SF-2 are the same ... ...

SF-2S Non-oil lubricated bearings, SF-2 is an improved product, with copper back as the substrate ... ...

SF-2L Lead free lubrication bearing is improved from SF-2. It has low friction coefficient ... ...

SF-2P(PEEK) Three-layer composite bearings, is a novel sliding bearing, which consists of steel, copper powder, PEEK + f ...