Standard Test Method for Measurement of Extreme-Pressure Properties of Lubricating Grease (Four-Ball Method)

Importancia y uso:

5.1 This test method, used for specification purposes, differentiates between lubricating greases having low, medium, and high level of extreme-pressure properties. The results do not necessarily correlate with results from service.4

5.2 It is noted that lubricating greases that have as their fluid component a silicone, halogenated silicone, or a mixture comprising silicone fluid and petroleum oil, are not applicable to this method of test.

Subcomité:

D02.G0.04

Referida por:

D2783-21, D8324-21, D4950-22, F2489-06R22, D6185-11R17, D6185-11R17, D6185-11R17

Volúmen:

05.01

Número ICS:

75.100 (Lubricants, industrial oils and related products)

Palabras clave:

extreme pressure; four-ball EP; grease; Hertz line; load-wear index; lubricating grease; weld point;