WB Wrapped bronze bearing-DU BUSH, spring bush, bronze bushing, SLIDING BEARING, CHINA BEARING, THRUST WASHER, THRUST WASHER, needle bearing

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WB Structure	Feature	Typical Application
The bearings are wrapped of a cold formable homogenous bronze (CuSn8), which will obtain exceptional material properties. The standard size are fitted with diamond shaped lubrication indents on the bearing surface. These indents serve as lubricant reservoirs to rapidly build up a lubrication film in the start movement and therewith reduce the start friction. The material suitable for constructions, agriculture etc where high load and slow movement are occurring.	1. Easy of fitting and lubrication 2. High load capacity 3. Possibility of producing items, inner side can be machined 4. High level thermal conductivity 5. Minimum overall dimensions 6. Chemical resistance Initial pre-lubrication at assembly required...	This type of bushing is widely applied in hoisting machines and other construction machines, automobiles, tractors, trucks, machines tools and some mineral engines. It can be fabricated into bushes, half bearings, flanged bushes, trust washers, spherical bearing so on.

Chemical compositions
Material type	Cu%	Sn%	P%	Pb%	Zn%
WB	91.3	8.5	0.2	/	/

Tech.Data
Max.Load	Static	120N/mm²	Hardness	HB110-150
Max.Load	Dynamic	40N/mm²	Elongation	40%
Max.Speed		2m/s	Temp.	-100℃~+200℃
Max.PV		2.8N/mm²*m/s	Frictioncoefficient	0.08～0.25
Tensilestrength		450N/mm²	Thermalconductivity	60W(m*k)^-1
Yieldpoint		250N/mm²	Coef.ofthermalexpansion	1510^-6k^-1

WB Structure	Feature	Typical Application
WB-2 derive from WB-1 bearings, but with the difference that the indentations on the sliding surface are replaced by through-holes which have a greater capacity to collect the lubricant compared with the indentations. These indents serve as lubricant reservoirs to rapidly build up a lubrication film in the start movement and therewith reduce the start friction. The material suitable for constructions, agriculture etc where high load and slow movement are occurring. The bearing surface of the WB-2 should be reduced by 15% in consideration of the through-holes	1. Easy of fitting and lubrication 2. High load capacity 3. Excellent wear resistance with lower friction 4. High level thermal conductivity 5. Minimum overall dimensions 6. Chemical resistance 7. Extended service life and lubrication intervals than normal FB090 type bearings 8. Free choice of lubricant 9. Collection of dust and rub off particles in the holes Initial pre-lubrication at assembly required...	This type of bushing is widely applied in hoisting machines and other construction machines, automobiles, tractors, trucks, machines tools and some mineral engines. It can be fabricated into bushes, half bearings, flanged bushes, trust washers, spherical bearing so on.

Chemical compositions
Material type	Cu%	Sn%	P%	Pb%	Zn%
WBG	91.3	8.5	0.2	/	/

Tech.Data
Max.Load	Static	120N/mm²	Hardness	HB 110﹣150
Max.Load	Dynamic	40N/mm²	Elongation	40%
Max.Speed		2.5m/s	Temp.	-100℃~+200℃
Max.PV		2.8N/mm²*m/s	Frictioncoefficient	0.08~0.25
Tensilestrength		450N/mm²	Thermalconductivity	60W(m*k)^-1
Yieldpoint		250N/mm²	Coef.ofthermalexpansion	1510^-6k^-1

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