Description
Backup rings can prevent seal extrusion in high-pressure applications and can also be used to protect the life of the overall sealing system from pressure spikes.
Attributes
Cat® backup rings are designed together with the elastomeric seal and mating components, significantly improving the life and performance of sealing systems in high-pressure applications.
Backup ring dimensions always follow strict tolerances to ensure they properly engage the seal groove with the mating surfaces. The materials selected provide pressure resistance and wear resistance.
Backup rings can be either closed rings or split rings. Split rings are easy to assemble.
Cat sealing systems prevent leaks and contamination of more expensive parts. Genuine Cat seals protect your investment.
Applications
Backup rings are used in high-pressure static and dynamic sealing applications, such as hydraulic pumps, valves, and engine systems.
Specifications
| Cross-Section Height | 1.9 mm (0.08 in) |
|---|---|
| Material Description | PTFE provides excellent performance in air, engine oil, diesel fuel and coolant applications, but is prone to installation damage and debris. Suitable for ultra-high-temperature applications. |
| Remarks | Dimensions and material descriptions are for reference only. Color may differ from the image. |
| Cross-Section Width | 1.3 mm (0.05 in) |
| Inside Diameter | 18.8 mm (0.74 in) |
Compatible Equipment
- Generator Sets: C7.1
- Excavators: 340, 320E, 330 GC, 336E L, 326, 336F L, 323, 329E, 336F, 329E L, 320 GC, 336F L XE, 336F LN, 336D2 XE, 336E, 336E LH, 336, 336 GC, 325, 335F LCR, 330GC, 336E LN, 352, 335, 320, 336E H, 330
