A simple solution for evaluation of lubricants anti-wear properties

7th International Conference on Advanced Concepts in Mechanical Engineering

Românu, I.C.^1 ; Musc, I.^1 ; Couun, N.^1 ; Juravle, A.^1

Mechanical Engineering, Mechatronics and Management Department, Stefan Cel Mare University, Suceava, Romania^1

关键词: Antiwear property;    Bearing ball;    Body dimensions;    International standards;    Lubricating properties;    Special devices;    Specialized software;    Testing device;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012025/pdf
DOI  :  10.1088/1757-899X/147/1/012025

来源: IOP

【 摘 要 】

The present paper describes a simple four balls testing device adapted for a classical drilling machine, using standard methodology meant to evaluate the lubricating properties of lubricants. The advantage of the method consists in the possibility of using any type of balls and a special device adapted to a common drilling machine. The evaluation of anti-wear lubricants properties can be done by comparing the contact scar dimension obtained experimentally, following the procedure described in EN ISO 20623:2003 international standard. The contact scar diameter is measured using an optic microscope equipped with a camera and specialized software, by comparing the scar with a known body dimension. Some experimental results obtained for the contact between four 12.7 mm bearing balls lubricated with grease are presented as well. The contact scar dimension-load dependencies are similar to those presented in literature and therefore validate the experimental setup.