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 adhere to 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
| Compatible | Diester Lubricants; Halogenated Hydrocarbons (Above 100 Degrees C); Excellent Compression Set Resistant Material; Petroleum Fluids; Phosphate Ester Fluids; Silicone Oils; Certain Acids |
|---|---|
| Polymer | FKM (Fluorocarbon) |
| Not Compatible | Amines; Brake Fluids; Engine Coolants; Fire-Resistant Fluids; Ketones; Steam; Water |
| Application | High-pressure, high-temperature applications requiring resistance to air, fuel, lubricants and hydraulic oil; ORFS, STORS seals |
| Temperature | -40 – 175 °C (-40 – 350 °F) |
| Dash Size | 220 in |
| Seal Inside Diameter | 34.52 mm |
| Material Hardness | 90A |
| Cross-Section Diameter | 3.5 mm (0.14 in) |
| Outside Diameter | 41.58 mm (1.64 in) |
| Inside Diameter | 34.5 mm (1.36 in) |
| SAE AS568 Dash Size | -220 |
| Hardness | 90 Shore A |
| Color | Green |
| 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. |
| Coating | None |
| Color Note | Actual o-ring color may differ from image. |
| Remarks | Dimensions and material descriptions are for reference only. Color may differ from the image. |
| Material | FKM – Fluoroelastomer |
Compatible Equipment
- Wheel Excavators: M315GC, M320, M315D, M320D2, M315D2, M313D, M322D, M315, M317D2
- Excavators: M325D L MH
- Wheel Loaders: M314
