Description
O-rings are used for static sealing and some dynamic applications.
Features
Cat® O-rings are made from materials compatible with the fluids, temperatures and pressures in Cat engines and machines. These materials resist wear and extrusion, giving the seals excellent compression set resistance. In addition, some Cat O-rings are coated with PTFE to minimize seal twisting and cutting during installation.
Our O-rings are dimensioned to strictly follow tight tolerances, ensuring they are properly seated in the seal groove with the right seal compression.
With more than 2500 different sizes and materials of O-rings, Cat O-rings are the best solution for the O-ring needs of your Cat and other mobile equipment.
Cat sealing systems prevent leaks and contamination of more expensive parts. Genuine Cat seals protect your investment.
Applications
O-rings are used in many static and dynamic joints in Cat machines and engines.
Specifications
| Material Hardness | 90A |
|---|---|
| Polymer | NBR (Nitrile butadiene) |
| Compatible | Anti-Wear Agents; Alpha-Olefin-Based Synthetic Lubricants; Glycols; Hydrocarbon Fuels; Petroleum-Based Lubricants; Silicone Oils and Greases; Water, Water-Based Engine Coolants; ORFS, STORS Seals |
| Cross-Section Diameter | 3.5 mm (0.138 in) |
| Material | NBR (90) |
| Inside Diameter | 28.7 mm (1.13 in) |
Compatible Equipment
- Generator Sets: 3512B
- Motor Graders: 349 GC, 316F
- Mini Excavators: 303.5, 303.5E, 307D, 303.5D, 307C, 303.5C
- Excavators: 374, 330D L, 349F L, 313D2, 320D3, 345 GC, 352, 350, 350MHPU, 349, 336D2 L, 395, 325C, 355, 374F L, 323, 320D FM, 336F L, 345C, 320C, 324D L, 314C, 330D, 329D L, 320D RR, 336D L, 336D2 GC, 336E, 312D, 336F, 336F L XE, 320D2 L, 314D LCR, 320D GC, 330D2, 330C, 315D L, 311C, 335F LCR, 312E, 336E L, 320D L, 313D2-GC, 325D L, 330D2 L, 320D2 GC, 313F LGC, 312D2 L, 313D2 GC, 325B, 330C L, 312D2, 328D LCR, 325, 318D L, 320C L, 320E, 312D2 GC, 323D2 L, 312D L, 336F LN, 336E LH, 336D2 XE, 311D LRR, 318D2 L, 323D2, 314D CR, 323D L, 329E, 315C, 320B, 323D, 325C L, 312E L, 318D2, 313F L, 349E L VG, 3101, 325D, 312C, 313D, 329E L, 324D, 336E H, 336E LN, 312C L, 312F, 325B L, 315F LCR, 326D L, 349E L, 390F, 345D, 345C L, 349E, 349D L, 345D L, 340D2 L, 352F, 340D L, 320D2, 336D2, 320D, 326D2, 326D2 L, 329D2 L, 308D, 336D, 329D, 308E, 303, 303C CR, 329D2, 390F L, 349D2, 349D2 L, 349D, 374F
- Skid Steer Loaders: 313D2 LGP
