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 fit properly in the seal groove with the necessary 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. Protect your investment with Genuine Cat seals.
Applications
O-rings are used in many static and dynamic joints in Cat machines and engines.
Specifications
| Material | FKM – Fluoroelastomer |
|---|---|
| Polymer | FKM (Fluorocarbon) |
| Material Hardness | 90A |
| Seal Inside Diameter | 43.69 mm |
| Cross-Section Diameter | 3 mm (0.12 in) |
| Coating | None |
| Compatible | Diester Lubricants; Halogenated Hydrocarbons (Above 100 Degrees C); Excellent Compression Set Resistant Material; Petroleum Fluids; Phosphate Ester Fluids; Silicone Oils; Certain Acids |
| Temperature | -215 °C (-390 °F) |
| Inside Diameter | 43.7 mm (1.72 in) |
| Dash Size | 924 in |
| Application | High-pressure, high-temperature applications requiring resistance to air, fuel, lubricants and hydraulic oil; ORFS, STORS seals |
| Not Compatible | Amines; Brake Fluids; Engine Coolants; Fire-Resistant Fluids; Ketones; Steam; Water |
| Remarks | Dimensions and material descriptions are for reference only. Color may differ from the image. |
| Material Description | FKM provides excellent performance in most applications, including air, engine oil, diesel fuel, hydraulic oil, automatic transmission fluid and biodiesel. Most FKM formulations must not be used with coolant/urea. FKM is effective at high temperatures and has good abrasion and cut resistance. |
Compatible Equipment
- Engines: C32
- Dozers: D9R, D9N, D8L, D9L, D10R, D10N
- Excavators: 637G
- Wheel Loaders: 836, 992D, 988F, 992C
- Off-Highway Trucks: 785, 797F, 773E, 777D, 773D, 771D, 773
- Asphalt Pavers: AD45
