PESS stainless steel teflon oilless bushing
PESS PTFE oilless stainless steel backing self lubricating 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.
PEB oilless slide bearing bushing is in SUS316 stainless steel backing sintered a bronze intermediate layer then inside sintered with PTFE (teflon) composite layer. PESS model code means stainless steel backing in cylinder or flange or washer type bearing
Technical Data
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 |
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)
