If using light oil, simply apply several drops of directly onto the ball bearing raceways on each side. The light oil will spread once the carriage is reapplied to the linear rail.

When using a specialised bearing lubricant, it is important to use the correct grade. The recommended grade of grease is EP00 or EP000 as these lubricate well, without being too viscous.

It is recommended to use a disposable syringe filled with the grease to apply a thin layer directly to the ball bearings. This will then be spread once the carriage is reapplied to the linear rail.