Inventory The Functions Of 8 Types Of Washers

A small part used between a connector and a nut. Generally, flat metal rings are used as the main method. Although they are small, they protect the surface of the connecting piece from being scratched by the nut and disperse the pressure of the nut on the connecting piece.
Copper asbestos pad
Copper asbestos pads have the characteristics of high pressure and high temperature resistance, and are used for engine cylinder gaskets. Before use, the copper asbestos pad should first remove any dirt or dust from the joint surface. Pay attention to the copper flange facing the cylinder head side to prevent air leakage during installation. Do not fold it hard during installation, and maintain it in good condition and sufficient elasticity.
Paper pad
It has two purposes. One is to increase sealing to prevent oil leakage; The second is to adjust the clearance between components. The axial clearance between the crankshaft bearing and the crankshaft is also achieved by adjusting the paper pad between the side cover of the flywheel end and the engine body. If the paper pad is damaged, it should be replaced in a timely manner to prevent oil leakage.
Flat cushion
Its function is to evenly distribute the pressure of the nut on the compressed part through a flat washer, while protecting the surface of the bolt thread and the connecting body. Generally, thin metal shells are fixed with metal flat pads.
Aluminum flat pad
Aluminum flat pads have a certain degree of toughness, and can generally be used at the connection of diesel and oil pipelines. Before installation, it is necessary to check whether there are dents or cracks on its surface. Otherwise, oil leakage may occur and air may be sucked into the pipe, which not only causes waste of oil, but also may lead to burning of the bearing and holding of the shaft due to insufficient oil supply.
Copper flat pad
The material of copper flat pads is generally red copper, which is mostly used in areas with high pressure, such as gaskets for fuel injectors.
Spring pad
Spring pads are used for bolt connections to prevent loosening of bolts and nuts due to vibration. Especially for bolts that are difficult to see and operate, spring washers should be used.
Asbestos pad
Asbestos pads have the characteristic of high temperature resistance, so the components used are all high-temperature components, such as between the exhaust pipe and the cylinder head. The role of asbestos pads is irreplaceable.
Rubber pad
When using rubber pads, it should be noted that oil resistant rubber pads can replace non oil resistant rubber pads, while non oil resistant rubber pads cannot replace oil resistant rubber pads. If it is found to have hardened and lost elasticity, it should be replaced in a timely manner to avoid causing component wear.
There are various types of washers, and their functional subdivisions are more diverse. How to select suitable fastening products? Here, we gather a variety of fastening products at once.