Graphite bearing lubricant is generally a solid lubricant, which is a solid material synthesized from a variety of substances with good lubricating performance and embedded in bearings and sliding blocks to play a self-lubricating role. It can replace the traditional lubricant and achieve good self-lubricating effect under certain specific conditions. Bearing is a common sliding part in the machinery industry, and there are metal, non-metal and composite materials. Graphite bearing is a carbon bearing developed on the basis of metal bearing with the performance requirements of mechanical equipment. Graphite material is the main substrate. Graphite bearings have different characteristics from metal bearings, mainly including: self lubrication, high temperature resistance, corrosion resistance, light weight, etc. Bearings are divided into rolling bearings and sliding bearings, and graphite bearings are mostly used for sliding bearings. It is applied to the bearings of conveyor, dryer, textile machine, submersible pump motor and other industrial departments such as food, beverage, textile and chemical industries. If grease lubricant is used in these parts, it will inevitably cause pollution. Graphite bearings have strong self lubrication and corrosion resistance, so they can operate for a long time without using lubricating oil.