What lubricants are used in miniature ball bearings?

1. Bearing lubricating oil: Bearing lubricating oil usually has a low viscosity and can form a film inside the miniature ball bearing to reduce friction and wear.

2. High-speed lubricating oil: For high-speed rotating miniature ball bearings, it is necessary to choose lubricating oil with lower viscosity and high-speed performance to ensure the normal operation and life of the bearing.

In addition to bearing oil, consider using bearing grease as a lubricant for miniature ball bearings. Bearing grease is a semi-solid lubricant consisting of base oil, thickener and additives and has the following advantages:

1. High viscosity: Bearing grease has a higher viscosity than lubricating oil, and can form a denser lubricating film, providing better lubrication performance and impact resistance.

2. Good sealing: Bearing grease has a high viscosity and can form a good seal inside the bearing to prevent external contaminants from entering the bearing and extend the life of the bearing.

3. Long-term lubrication: Bearing grease has high adhesion and can remain on the bearing surface for a long time, providing long-lasting lubrication effect.

4. Good water resistance: Bearing grease usually has good water resistance and can maintain stable lubrication effect in humid environment.