X-rings
Four-lobed rings for static or dynamic applications compatible with the profile. Check groove dimensions and installed preload.
Family illustration; not an individual profile or manufacturing drawing.
Reference profiles.
Open a profile for construction details and the available manufacturer technical sheet.
XRContinuous ring; four-lobed cross-section
Construction features
- Continuous ring; four-lobed cross-section
Technical documentation
Manufacturer technical sheet: section geometry, dimensions and operating information for the referenced profile.
Technical sheet · PDF · EN ↗FST catalogue reference. Dimensions and compound must match the selected item.
No matching profile. Try a shorter code.
Data for the correct selection.
| Selection parameter | What to specify |
|---|---|
| Dimensions | Inside diameter d₁ × cross-section d₂; groove drawing |
| Material and compound | Compound code, hardness, reinforcements and any required approvals. Check the individual profile document. |
| Medium | Fluid type, concentration, additives and cleaning agents. |
| Service conditions | Minimum/maximum temperature, pressure and peaks; sliding speed or rotation; duty cycle. |
| Installation | Groove drawing, surface finish, clearances, pressure direction and assembly method. |
| Traceability and documents | Specify the required compound, conformity declarations and batch documentation in the enquiry. |
Temperature, pressure and speed limits depend on the exact compound, profile and installation. Do not combine maximum ratings from different conditions or extend one profile’s ratings to the whole family.
Profile identifiers refer to the FST technical catalogue. Supply configuration and documentation are confirmed for the specific enquiry.
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