ASTM D2625 Test Method for Endurance (Wear) Life and Load-Carrying Capacity of Solid Film Lubricants (Falex Pin and Vee Method)
4. Summary of Test Method
4.1 The endurance test (Procedure A) consists of running two stationary steel vee block specimens loaded to a predetermined value against a rotating steel pin specimen. The endurance (wear) life is determined when the torque increases by 10 in•lbf (1.13 N•m).
4.2 The load-carrying capacity test (Procedure B) consists of running two stationary steel vee block specimens against a rotating steel pin, increasing the load on the pin until a sharp increase (10 in•lbf (1.13 N•m)) in steady-state torque or pin breakage is experienced. Prior to both tests, the solid film lubricant is deposited on the surfaces of the test specimens.
5. Significance and Use
5.1 This test method differentiates between bonded solid lubricants with respect to their wear life and load-carrying capacity. If the test conditions are changed, wear life may change and relative ratings of the bonded solid film lubricants may be different.
