SF-1X Self Lubricating Bushing is wall wrapped bearings made of triple layer composites material which consists of a steel backing, a sintered porous bronze particles interlayer and calendared with PTFE and Pb mixture as surface layer. It is of low friction coefficient, anti-wear, anti-corrosion and can be used without oil, or only os needed. Moreover, it it of low cast, low vibration and low noise compact and light.

  
Color Metallograph
  
---PTFE with lead, 0.01~0.03mm

---Porous bronze, 0.2~0.3mm
(CuSn8Zn3:Sn<=8%;Zn<=3%;Cu=Balance)  
--Steel backing, 0.7~2.3mm
 
 ---Copper(0.008mm) or Tin(0.005mm) Plating


Steel Backing Technical Data
Code Equal Code Chemical Composition% Physical Properties
ASTM DIN BS JIS C Mn P S Al Yield Strength
<=N/mm2		 Tensile Strength
N/mm2		 Elongation
%
ST12 1010
1008		 CK10(1.1121)
C10(1.0301)		 040A10
050A10
060A10		 S10C
S09CK		 0.10 0.5 0.035 0.035 -- 280 270~410 28

Physical Properties
Load Capacity Temperature Limit PV Limit (dry) PV Limit (oil) Friction Coef Speed Limit
140N/mm2 -195¡æ~280¡æ 3.6N/mm2 50N/mm2 0.03~0.18  10m/s

Size Specification

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

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