Back-up Ring XSBUR11
Function:
Back-up rings or Anti Extrusion Rings do not have a sealing function. They are designed to prevent elastic sealing elements of gap extrusion.
Features:- Active Anti Extrusion Ring for Rod Seal XSRS02
- Reduced gap extrusion of the elastomer seal and/or higher pressures up to 700 bar possible
- Prevention of twisting of the seal in the groove.
- Available as split non-split version.
|
Seal housing recommandation
Tolerances | [mm]  |   |
---|
L < 10 mm
| + 0,2 | |
L ≥ 10 mm
| + 0,3 | |
∅ NA
| H8 | |
∅ NI
| f8 | |
|
---|
Surface roughness | Rtmax [ µ]  | Ra [ µ]  |
---|
Bottom of groove
| ≤ 6,3 | ≤ 1,6 |
Face of groove
| ≤ 15 | ≤ 3 |
|
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Sliding surface | Rtmax [ µ]  | Ra [ µ]  |
---|
PU, elastormeres
| ≤ 2,5 | ≤ 0,1 - 0,5 |
PTFE
| ≤ 2 | ≤ 0,05 - 0,3 |