How to maintain the stable performance and improve the service life of the rolling linear guide pair has always been a difficult problem for manufacturers and users to explore.

After the selection and installation of the rolling linear guide pair, the lubrication effect will greatly affect the application of the linear guide pair on the host. Reasonable lubrication can reduce friction and wear to prevent overheating, damage to its internal structure, and affect the movement function of the guide rail slider. If lubrication is unreasonable, the wear of the balls and raceways in the linear guide pair will increase, resulting in a significant decrease in its stability and reliability, affecting the machining accuracy and quality of the CNC machine tool.

Lubrication is mainly achieved by adding lubricant between the moving surfaces of the ball and the raceway, thereby forming an oil film to reduce frictional resistance and minimize surface wear. Reasonably controlling the thickness of the oil film and the factors that affect it can help form a good lubrication effect, thereby improving the application level of linear guide pairs on CNC machine tools.

Different lubrication conditions will have different effects on the performance of linear guide pairs, and the main factors affecting the lubrication effect include lubrication amount, lubricant viscosity, operating speed, etc.