PTFE O-ring Experimental results:
In order to verify the anti-wear effect of PTFE, the lip wear test and the friction torque test were carried out respectively using the PTFE rotary shaft lip oil seal. The experimental conditions were: no lubrication state (dry friction), shaft surface roughness: RaO. 4,
Experimental rotation speed: 3000 rpm, experimental temperature: 140 ° C, experimental time: 2 h.
It is concluded that the wear of the oil seal with PTFE coating is: O. 163mIll, PTFE-free oil seal
The amount of wear is: O. 431rm, with or without PTFE coating wear, the difference is: 0.43l - 0.163 = O. 268 coffee, thus obtained, PTFE
The coating oil seal is extremely effective in reducing wear. The frictional torque of the oil seal with PTFE coating is basically stable at O. 35 to 0.4. Without
The frictional torque of the PTFE-coated oil seal is not only large (up to 1.8), but also varies widely (O.7 to 1.8).
PTFE coated oil seals have significant advantages in reducing and stabilizing frictional torque.
P1rFE coating can be applied not only to high speed rotary shaft oil seals. Also applicable to shock absorber oil seals, gearbox shift shaft oil seals
The reciprocating oil seal, as well as the friction coefficient of the reciprocating process, can be greatly reduced due to its extremely low friction coefficient.
Oil seals with PTFE coating provide lower friction (about 8N), while oil seals without PTFE coating will not only produce larger
Friction. And the magnitude and instability of friction. This is detrimental to the sealing performance of the oil seal. Experimental results show that: PTFE
The application of the coating to the shock absorber oil seal not only reduces the friction but also creates a relatively stable friction between the oil seal and the guide.
Name: Mr wu
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