GB/T 3142-2019
Standard test method for determination of load-carrying capacity of lubricants—Four-ball method (English Version)

Standard No.

GB/T 3142-2019

Language

Chinese, Available in English version

Release Date

2019

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 3142-2019

Replace

GB/T 3142-1982

Scope

This standard specifies the method for measuring the bearing capacity of lubricants using a four-ball extreme pressure testing machine, including the determination of the maximum non-seizing load (P,) sintering load (Pu) and comprehensive wear value (ZMZ). This standard applies to lubricants. In practical applications, different evaluation indicators can be selected according to the different uses of lubricants.

GB/T 3142-2019 Referenced Document

• GB 1922 Petroleum solvents for paints and cleaning
• GB/T 15894 Chemical reagent.Petroleum ether
• GB/T 308.1 Rolling bearings.Balls.Part 1:Steel balls

GB/T 3142-2019 history

• 2019 GB/T 3142-2019 Standard test method for determination of load-carrying capacity of lubricants—Four-ball method
• 1982 GB/T 3142-1982 Lubricants--Determination of load carrying capacity(four balls method)