Back-up Ring XSBUR08
Function:
Back-up rings do not have a sealing function. They are designed to prevent elastic sealing elements such als O-Rings or Quad Rings of gap extrusion.
Back-up rings do not have a sealing function. They are designed to prevent elastic sealing elements such als O-Rings or Quad Rings of gap extrusion.
Features:
|
Application
|
Tolerances | [mm]  |   |
---|---|---|
L < 10 mm | + 0,2 | |
L ≥ 10 mm | + 0,3 | |
∅ NA | H8 | |
∅ NI | h9 | |
Surface roughness | Rtmax [ µ]  | Ra [ µ]  |
Bottom of groove | ≤ 6,3 | ≤ 1,6 |
Face of groove | ≤ 15 | ≤ 3 |
Sliding surface | Rtmax [ µ]  | Ra [ µ]  |
PU, elastormeres | ≤ 2,5 | ≤ 0,1 - 0,5 |
PTFE | ≤ 2 | ≤ 0,05 - 0,3 |