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
| 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 |
|---|---|
| Material Hardness | 90A |
| Polymer | NBR (Nitrile butadiene) |
| Cross-Section Diameter | 3.1 mm (0.122 in) |
| Material | NBR – Nitrile |
| Inside Diameter | 134.4 mm (5.291 in) |
Compatible Equipment
- Generator Sets: 3512B
- Wheel Excavators: M313D, M322D, M315D, M320, M315
- Mini Excavators: 305.5, 305.5E, 306
- Excavators: 320 GC, 320, 326, 302.7CR, 340, 352, 333, 330 GC, 320D FM, 323, 320D L, 320C, 325C, 329D L, 320D GC, 325C L, 324D L, 330D2 L, 320D2 L, 323D L, 323D2 L, 320E, 320D2 GC, 320B, 320D RR, 323GC, 326D L, 326GC, 325D, 329E, 325B L, 328D LCR, 330D2, 325, 329E L, 325D L, 349, 324D, 323D, 335F LCR, 326 GC, 323 GC, 335, 330GC, 325B, 323D2, 320C L, 333 GC, 320D, 320D2, 330, 305, 303, 326D2, 329D, 326D2 L, 329D2 L, 305C CR, 329D2
- Wheel Loaders: M314
Additional information
| Machine Model | 302.7CR, 303, 305, 305.5, 305.5E, 305C CR, 306, 320, 320 GC, 320B, 320C, 320C L, 320D, 320D FM, 320D GC, 320D L, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 323, 323 GC, 323D, 323D L, 323D2, 323D2 L, 323GC, 324D, 324D L, 325, 325B, 325B L, 325C, 325C L, 325D, 325D L, 326, 326 GC, 326D L, 326D2, 326D2 L, 326GC, 328D LCR, 329D, 329D L, 329D2, 329D2 L, 329E, 329E L, 330, 330 GC, 330D2, 330D2 L, 330GC, 333, 333 GC, 335, 335F LCR, 340, 349, 3512B, 352, M313D, M314, M315, M315D, M320, M322D |
|---|---|
| Equipment Type | Excavators, Mini Excavators, Wheel Excavators, Wheel Loaders, Generator Sets |
| Part Source | Genuine OEM |
