What Is a Backing Ring?
A backing ring is a component used during the tightening of bolts or nuts to protect their seating surfaces from damage.
The principle of operation involves placing the backing ring between the seating surfaces of bolts or nuts to prevent direct contact and thus prevent damage. There are two main types: metal and plastic, each with its own unique advantages. Backing rings come in various shapes such as flat, round, and grooved, and there are also different types such as spring backing rings and washer backing rings.
Backing rings are used in various applications including automotive, construction machinery, and general industries to prevent damage to the seating surfaces of bolts or nuts, improve tightening torque, and prevent loosening. It is important to select the appropriate size and thickness of backing ring and to install it correctly when using it.