Testing Methods in Tribology 1

[MolaKule]

What standard testing method would one use to determine the coefficient of friction of (C.O.F.) of automatic transmission fluids?




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[Falken]

SAE #2 Friction Test. Clutch packs stop a rotating flywheel. The torque is measured from the stopping event in order to calculate the COF.

 

[MolaKule]

Originally Posted By: MolaKule
What standard testing method would one use to determine the coefficient of friction of (C.O.F.) of automatic transmission fluids?


Let me restate the question:


What standard testing method OR methods would one use to determine the coefficient of friction of (C.O.F.) of automatic transmission fluids?

 

[MolaKule]

Bump.

People have asked for testing methods to be discussed so where are they GaleHawkens?

 

[MolaKule]

For determining wet clutch behavior of the clutch-fluid combination, a number of tests can be done,

The SAE #2 Friction Test is one test method used used for determining COF.

Another is the JASO M348 (modified SAE #2 Friction Test) and the JASO M349 Low Velocity Friction Apparatus (LVFA) (Du/Dv) test.

Another is the CEC L-11-T-72 COF test using the DZK friction machine.


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