Lubricants Quality Check Part 4: Ball Scar Test

A variation of the 4 Ball Weld Load Test, the 4 Ball Scar Test, aims to determine the wear reduction properties of lubricants and greases.  The configuration of the 4 steel balls and lubricant (or grease) is the same as with the Weld Load test, but the load applied on the top ball is fixed at only 40 kgs., for 1 hour.   Welding is not a typical occurrence in this test, yet a ‘scar’ is typically manifested on the steel balls after the test.

The scar diameter is measured in mm., and the values resulting from the tests of different lubricants may be compared to provide guidance on wear-reduction properties.

For more ideas and knowledge about industrial lubricants, you can check out our other blogs! Fluid Solutions is the best industrial lubrication service provider in the Philippines. We offer various industrial lubrication products like Food Grade Oils and Greases, High Performance Greases, Specialty Lubrication, Maintenace Equipment, Metalworking Fluids,a and many more! Contact us at (02) 696-7120 or email us at for more information!

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