GUIDE BUSHINGS Blank Material for Oilless Bushing　Growing Cast Iron/Copper Alloy Casting qFriction characteristics (SO#30:Growing Cast Iron) (SO#60:Copper Alloy Casting) t Pipe 25 Drive Condition Y No lubrication,Intermittent rotation Y Speed Vm5m/min qS30 (SO#30 : Growing Cast Iron Type) RoHS L qS30 (SO#30 : Growing Cast Iron Type) It has excellent wear resistance and seizure resistance of casting, and it is the oil impregnated bearing that has internal porosity by repeated composition adjustment and heat treatment in the porosity. · Less noise owing to porous structure. · High dimensional stability due to uniform material quality. · Where reduction in oil lubrication is desired. · Where reduction in vibration and sliding noise is desired. qS60 (SO#60 : Copper Alloy Casting Type) The major composition is copper alloy. With addition of special elements such as tin, zinc, etc., generation of crystal in solidification of molten metal is controlled. This easily generates minute shrink holes or discharge holes of melting gas. The base metal of the bearing has minute porosity and it is impregnated with high grade lubrication oil. · Piston ring, piston guide of hydraulic unit · Cylinder sleeve. · Bush for blower. Max. Allowable Sliding Speed V Max. Allowable PV value Operation Range Temperature 2 ˚C m/min N/mm Ym/min Lubricating Condition Environment Condition Regular lubrication Regular lubrication qPhysical Properties Tensile Strength 2 N/mm Linear Expansion Coefficient ×10−5/˚C Impregnation ratio % Modules of longitudinal elasticity 2 kN/mm qS60 (SO#60 : Copper Alloy Casting Type) qOperation Range · Less lubrication frequencies than before. Pipe Type Metal Sliding Materials