SF-1T Self Lubricating Bushing is composed of a specially designed surface layer of PTFE formulations and is specifically applied for the high PV bushes of gear oil pump. It is to be used in hydrodynamic or boundary lubrication condition of medium or high pressure gear oil pimps such as P=16-26Mpa,V=3.5-5m/s. It shows the benefit of low friction coefficient, wear resistant and anti-impact properties. At Hydrodynamic lubrication, the PV limit reaches to 120N/mm2.m/s.
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Color Metallograph  
---PTFE with lead, 0.01~0.03mm
 
---Porous bronze, 0.03mm
(CuSn8Zn3:Sn<=8%;Zn<=3%;Cu=Balance)
  
--Steel backing, 0.7~2.2mm
 
 
 
---Copper(0.008mm) or Tin(0.005mm) Plating

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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 4.3N/mm2 60N/mm2 0.03~0.18  10m/s

Size Specification



Application Case
1. Low friction under oil condition.
2. Wear resistant and anti-impact.
3. At hydrodynamic lubrication, the PV limit reached to 120N/mm2*m/s
4. It is the best choice for the bushed in various kinds of gear pumps as
     well as plunger, vane pumps and so on.

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