Solid lubrication Under some special conditions of use, adding a small amount of solid lubricant to the grease, such as adding 3 to 5% of No. 1 molybdenum disulfide, can reduce wear and improve pressure and heat resistance. For high temperature, elegance, high vacuum, and corrosion resistance , radiation resistance, and extreme low temperature and other special conditions, adding solid lubricants to engineering plastics or powder metallurgy materials can make INA bearing parts with self-lubricating properties. For example, using a binder to bond the solid lubricant to the raceway , the cage and the rolling elements form a lubricating film, which has a certain effect on reducing friction and wear.