Bearing 1. product :gear pump bearing 2.material:PTFE ,steel backing,porous bronze 0.2--0.3mm, copper/tin plating 0.002mm 3.It isa new kind of ZTOM10 whiich composes of a specailly designed surface layer of PTFE formulation and is specifically applied for the high PV value of gear pump bearing .It is used in gear pumps vane pump etc.