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JF-20 Bimetal bushing

JF-20 Bimetal bushing

Basic characteristics

JF-20 is a high tin and aluminum based bushing, which adopts steel as backing and is coated a lining of AlSn20Cu through rolling treatment. It is a fairly good fatigue resistance, load capatity and good anti-corrosion and also performs well in bearing's sliding properties. It is widely applied under high speed and low load such as in internal combustion engine

  TECHNICAL DATE

	Static	120N/m㎡		Yield Point	HB＞260
Max.Load				Temp.	-40℃～+250℃
	Dynamic	60N/m㎡		Frictioncoefficient	0.08～0.20
Max.Speed		2m/s		Thermalconductivity	60W(m*k)-1
Max.PV		2.8N/mm2﹡m/s		Coef.ofthermalexpansion	40*10-6*k-1
Breaking Load		350N/mm2

  Chemical compositions

Material	Alloycomposition	Internationalstandard	AlloyHardness
JF800	CuPbl0Snl0	JIS-LBC3/SAE-797	HB70-100
JF720	CuPb24Sn4	JIS-LBC6/SAE-799	HB45-70
JF700	CuPb30	JIS-KJ3/SAE-48	HB30-45
JF20	AISn20Cu	JIS-AJL/SAE-783	HB30-40

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