Valve Rocker Bushing take 10# steel or spcc low carbon steel ... steel back,Cu-Pb alloy powders sintered Valve Rocker Bushing:1.Max bearing capacity: 150N/mm2.Tensile strength: ... 120+ 2006.Alloy material: CuPb10Sn10Our bushing are specially suitable for connecting rod, rocker arm, gear box, starting motor for automobile engine, ... engineering machinery, and air conditioner compressor. Valve Rocker Bushing