Home > PE PTFE Composite Bearing
is wrapped by steel backing, Sintering bronze inter layer and PTFE(Teflon) composite anti-wear inner surface. Also it is name SF-1 bushing in China and DU, DP4, PAP P10 overseas. It is wildly used in hydraulic gear pumps, oil cylinder, oil Damping bushes and piston rings for automobiles and motorcycles and textile, food-stuff machines, etc.
PTFE oilless dry bearing bushing is in carbon steel backing with sintered bronze intermediate layer, then PTFE (teflon) composite inner coated.PE model code means carbon steel in cylinder type bushing
1.PTFE composite
0.01~0.03mm as sliding layer*
2.Porous bronze
0.2~0.3mm
3.Steel backing
0.7~2.3mm**
4.Tin-plating 0.005mm or
copper plating 0.008mm
*Normally it is without lead, customized can add it.
** Metal can be in carbon steel, bronze or stainless steel.
Performance
Data
(*According to steel backing)
Load capacity P
(Dry friction)
Static
load
250N/mm2
Dynamic
load
140N/mm2
Max linear speed V
Dry
friction
2.5m/s
Oil
lubrication
5m/s
PV value limit
Dry
friction
3.6N/mm2.m/s
Oil
lubrication
50N/mm2.m/s
Friction coef u
Dry
friction
0.08~0.20
Oil
lubrication
0.02~0.07
Working temperature
-200oC~+280oC
Thermal conductivity
40W/mk
Linear expansion
12*10 -6/K
Products Standard: ISO3547 (Replaces DIN1494)
Click here downloading:
Catalogue of PE PTFE composite bearing
DP4 Specifications(sizes) List
Contact: Sales Department
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