PE-S oilless dry bearing

PE-S PTFE coated steel backing oiIless dry bearing

is wrapped by steel backing, Sinter bronze inter layer and PTFE 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

ptfe lined oilless sliding dry bushing

Technical Data

steel backing ptfe composite layer

1.PTFE composite 0.01~0.03mm as sliding layer*

2.Porous bronze 0.2~0.3mm

3.Metal 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 in carbon steel, bronze or stainless steel.

Performance	Data (*According to steel backing)
Load capacity P (Dry friction)	Static load	250N/mm²
Load capacity P (Dry friction)	Dynamic load	140N/mm²
Max linear speed V	Dry friction	2.5m/s
Max linear speed V	Oil lubrication	5m/s
PV value limit	Dry friction	3.6N/mm².m/s
PV value limit	Oil lubrication	50N/mm².m/s
Friction coef u	Dry friction	0.08~0.20
Friction coef u	Oil lubrication	0.02~0.07
Working temperature	-200^oC~+280^oC
Thermal conductivity	40W/mk
Linear expansion	12*10 ^-6/K

Products Standard: ISO3547 (Replaces DIN1494)