COB-SRIM 010 self-lubricating bearings：It's made of high quality low-carbon steel plate, sintered porous bronze as its interlayer and the compound of PTFE and Pb as its surface. It offers the property of good self-lubricating,low wear and low frcation,it has made full use of the strong points of metals & polymer materials. It's used in printing machines,woven machines, tobacco machines,as well as gymnastic machines etc.
COB-SRIM 010 Metallurgical structure

	1.PTFE with lead 0.01~0.03mm
	2.Porous bronze 0.2~0.3mm
	3.Steel backing 0.7~2.3mm
	4.Tin-plating 0.005mm or copper plating 0.008mm

COB-SRIM 015 self-lubricating bearings(Without Pb)：It's made of high quality low-carbon steel plate, sintered porous bronze as it's interlayer & the compound of PTFE material and Pb as its surface. As it is without lead,which makes the bearing lubricating condition cleaner, and in accordance with environmental request.It's based on bronze alloy of a particular formulation with high density with sintered bronze layer as it's interlayer,with the compound of mostly PTFE and other factors. As it's without lead,which makes the bearing lubricating condition cleaner, and in accordance with environmental request.
COB-SRIM 015 Metallurgical structure

	1.PTFE with fibre 0.01~0.03mm
	2.Porous bronze 0.2~0.3mm
	3.Steel backing 0.7~2.3mm
	4.Tin-plating 0.005mm or copper plating 0.008mm

COB-SRIM 010 Application：
1.Dry or only a trace of grease or oil required maintenance free.
2.Low friction and with long life.
3.Low vibration,low noise & non-pollution in operation.
4.Electroplating is possible to prevent corrosion.It is widely used in various sliding motions of different kind of machine such as textile machine,tobacco machines,hydranlic,vehicles automobiles,agriculture machines etc.
5.Low stick slip properties ensuring accuracy of machine operation under low sliding speeds.
6.Load will spread over a wider area due to the bearing material's elastic nature.
7.PTFE and Lead film is transferred to the mating shaft to improve running properties.
8.It can be used in low hardness of mating shaft,so the shafts processing is easy. 9.The machine will be compact because of the thin thickness and low weight of the bush.

COB-SRIM 015 Application：
1.PTFE & fibre can protect the shaft while in operation. 2.It is suitable for the machine required harmless to people because of Lead-free.
3.Goodload capacity and antiwear.
4.Bronze and steel have good thermal conductivity.
5.Anti-corrosion because of surface plating.
6.It is widely used in general machines,and suitable for food machine,pharmaceutical machine,tobacco machine etc. It will subsitute SF-1 in future because of environment protection.

Physical and mechanical property：
Performance index		COB-SRIM 010	COB-SRIM 015
Max Load capacity,N/mm2	Static load	250	250
	Dynamic Load	140	140
Max line speed,m/s	Dry Fiction	2.5	2
	Oil Lubrication	5	5
PV value limit,N/mm2·m/s	Dry Fiction	3.6	3.8
	Oil Lubrication	50	50
Frication coef	Dry Fiction	0.08-0.20	0.08-0.22
	Oil Lubrication	0.02-0.07	0.02-0.07
Working temperature,℃		-200-+280	-200-+280
Thermal conductivity,W/m·k		40	40
Coefficient of linear ecpansion /K		12×10-6	12×10-6

TECHNICAL SUPPORT
★ SHANGHAI RESEARCH INSTITUTE OF MATERIALS
★ LANZHOU INSTITUTE OF CHEMICAL PHYSICS CHINESE
   ACADEMY OF SCIENCES