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Spring washers are widely used in load-bearing and non load-bearing structures of general mechanical products. They are characterized by low cost and easy installation, and are suitable for parts with frequent assembly and disassembly. However, the anti loosening ability of spring washer is very low! Now let's introduce the installation of spring washer!

The spring washer is installed under the nut to prevent the nut from loosening.

It is stated in the national standards.

Hexagon slotted nut is specially used with the bolt with hole at the end of the screw to insert the cotter pin from the groove of the nut into the hole of the screw to prevent the nut from loosening automatically. It is mainly used in occasions with vibration load or alternating load.

Methods to prevent automatic loosening of nuts (or bolts) in mechanical design and manufacturing include:

1. add spring washer; (easy to do)

1. use hexagon slotted nut + cotter pin; (increased processing operations on a year-on-year basis)

1. pad the lock washer; (increased processing operations on a year-on-year basis)

1. insert the steel wire into the hexagon head opening of the hexagon bolt. (increased processing operations on a year-on-year basis)

First, the physical dimensions are considered, followed by the workload. Scale is the first issue because you need to know the outside diameter, hole size and thickness required. After these factors are known, you can specify the rated spring washer that will be placed on it through your equipment and the load of bolts and nuts. Spring washers made of different materials such as stainless steel, nickel alloy steel and copper alloy are also available.

Second, consider the gasket type. Types of spring washers several different types of spring washers exist. They are washers, which are a round spring compacted to a disk shape before hardening and tempering; Corrugated washer, which is a wavy, flat disc; Conical washer, which is designed as a high bearing washer; The bent washer, which is used to provide play at the coiling end, is also known as axial clearance during assembly; Constant force washers, which are adjustable gaskets; Or a finger washer having a finger around the outer diameter which is designed to remove some load from the inner diameter of the washing machine and place it on the outside.

Finally, the spring washer is installed in an assembly in the same way that the spring washer is installed in a regular flat washer is used; The washer assembly is under the nut during assembly and the nut is tightened to a specified torque. This preloads the spring washer to its correct load rating.

The ideal installation method is to flatten as much as possible. The closer to the flattening state, the faster the tension torque increases. The proper bolt tension can be obtained without a torque wrench.

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