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 under sudden pressure changes.
Features
Cat® backup rings are designed together with the elastomeric seal and mating components and contribute greatly to the life and performance of sealing systems in high-pressure applications.
Backup ring dimensions strictly follow tight tolerances, ensuring they properly bridge the seal groove and the mating surfaces. Materials are selected based on their pressure resistance and wear resistance.
Backup rings are available in two types: closed rings and split rings. Split rings are used to ensure ease of installation.
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, for example, hydraulic pumps, valves, and engine systems.
Specifications
| Material | PTFE – Polytetrafluoroethylene |
|---|---|
| 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. |
| Inside Diameter | 16 mm (0.63 in) |
| Cross-Section Width | 1.2 mm (0.05 in) |
| Remarks | Dimensions and material descriptions are for reference only. Color may differ from the image. |
| Cross-Section Height | 2 mm (0.08 in) |
Compatible Equipment
- Generator Sets: 3512B, C7.1
- Motor Graders: 349 GC, 316F
- Wheel Excavators: M315, M317D2, M320, M313D, M315D, M322D, M315D2, M315GC, M320D2
- Mini Excavators: 307, 307D, 307E2, 308E2
- Excavators: 330D L, 313 GC, 313, 316 GC, 374, 349F L, 325, 320, 340, 313F L, 320C, 312D, 313D2, 313D2 GC, 311D LRR, 325C, 315D L, 325D L, 336F L, 330C L, 312E L, 312D2 L, 312D L, 312C L, 311C, 330C, 330D, 330 L, 318D2 L, 336F LN, 311B, 336F, 312D2, 318D L, 323D L, 329E L, 314D LCR, 395, 336, 323, 336 GC, 336D2 L, 336D2 GC, 349, 320 GX, 323 GX, 320D L, 336D L, 328D LCR, 352, 326, 355, 330D2 L, 324D L, 330D2, 329D L, 324D, 320D RR, 320D2 L, 320 GC, 323 GC, 313F LGC, 320D3 GC, 350, 352F, 336F L XE, 330 GC, 345 GC, 330GC, 336E, 314D CR, 312F, 312C, 325D, 320D2 GC, 323GC, 326GC, 333, 315C, 336E L, 325B L, 335F LCR, 314C, 333 GC, 326 GC, 326D L, 345D L, 323D2 L, 3101, 336D2 XE, 315, 313D2-GC, 320E, 345C, 345B, 345C L, 313D, 365B, 385C L, 320B, 312E, 312D2 GC, 349D L, 340D L, 323D, 336E LH, 336E H, 336E LN, 330B, 329E, 318D2, 325C L, 315F LCR, 325B, 385B, 335, 350MHPU, 340D2 L, 345D, 315 GC, 313 GX, 312 GX, 316 GX, 312 GC, 349E L, 349E, 330, 308D, 308E, 320D, 336D2, 336D, 320D2, 329D2 L, 329D, 326D2, 349D2 L, 349D2, 326D2 L, 349D, 307E, 329D2
- Wheel Loaders: M314
- Skid Steer Loaders: 313D2 LGP
