Backup ring 125-7002

A backup ring is a type of sealing element used in conjunction with O-rings in various applications, particularly in hydraulic and pneumatic systems. It is typically made of a stiff material and is designed to prevent the O-ring from extruding or deforming under high pressure. Backup rings are placed behind the O-ring in the groove, providing additional support and enhancing the sealing performance by maintaining the integrity of the O-ring during operation. This helps to improve the reliability and longevity of the seal.

Caterpillar backup rings are typically made from material PTFE (Teflon), it provides the necessary strength, durability, and resistance to various fluids and temperatures for the machine