According to the work of the sliding bearing, the coordination of the general band holes and the shaft is the same as the gap. The size deviation of the axis diameter and the holes diameter of the part map is generally ensured that there is a reasonable gap between the axis and the holes of the bans when the average operating temperature is 20 ° C at 20 ° C. 20 ° C. The change is determined. There are many factors affecting the sliding bearing overheating failure. The design of the bearing structure is reasonable. When the material is used correct, the sliding bearing overheating is mainly caused by improper assembly and improper use of the bearing radial gap.

         The effects of sliding bearing radial gap on the bearing overheating failure. The radial gap Δ of the sliding bearing is the difference between the diameter and the diameter of the neck of the bearing hole. The sliding bearing must have a certain radial gap. At the minimum condition for activity; the guarantee of the operating accuracy of the axis; it is an important condition for forming liquid lubrication. Therefore, the radial gap of sliding bearing is very important, and it is extremely harmful to too large or too small. If the gap is too small, it is difficult to form a lubricating oil film. The friction heat is not easy to be taken away, making the bearing too hot, and in severe cases, the gap is too large, and the oil film is difficult to form. It will reduce the operating accuracy of the machine. , Even leading to burning tile accidents.

         During the actual use of the bearing, due to the small gap, the friction heat is not easy to be taken away. In addition, the lubricant is a medium residue oil, and the impurities are more. Essence