Automotive water pump bearings tell you how to use rolling bearings correctly

Rolling bearings are mainly used in automobiles. There are dozens of types of bearings in each automobile. They include almost all common bearing types. The collision and damage of rolling bearings are also common. Because rolling bearings are generally installed inside the mechanism, it is inconvenient to inspect visually. You can only make a rough judgment based on the failure phenomenon, and then disassemble and inspect. The correct use of rolling bearings is the only way to reduce bearing failures and extend bearing life. The following automotive water pump bearings introduce the use requirements and common faults and damages of rolling bearings:

1. Common faults of rolling bearings

The main fault phenomenon of rolling bearings is that the temperature of the bearing installation part is too high.

The reasons for the excessively high bearing temperature include: the quality of lubricating oil does not meet the requirements or deterioration, the viscosity of lubricating oil is too high; the mechanism assembly is too tight (insufficient clearance); the bearing assembly is too tight; the bearing race rotates on the shaft or in the housing; Large; the bearing cage or rolling elements are broken, etc.

Second, the correct use of rolling bearings

1. Disassembly and assembly of the bearing

The bearing should be cleaned before installation. When installing, use special tools to press in the auxiliary bearing straight and evenly. Do not strike with a hammer. It is especially forbidden to strike directly on the bearing. When the bearing race is loose with the seat hole, the seat hole should be repaired or the bearing should be replaced. Do not use pitting or pad copper on the bearing mating surface. When disassembling the bearing, use a suitable puller to pull the bearing out, and do not knock the bearing with a chisel, hand hammer, etc.

2. Lubrication of bearings

Commonly used lubricants for rolling bearings are lubricating oil and grease. When the peripheral speed of the shaft is less than 4-5m/s, or the parts on the car that cannot be lubricated with lubricating oil, grease lubrication is used. The advantage of grease lubrication is that the sealing structure is simple, the grease is not easy to lose, and it is not affected by temperature. It can be used for a longer time with one grease.