RS108

  • Asymmetric compact rod seal with groove.

  • Tight fit on the outer diameter for stable hold in housing design.

  • Use with highly viscous liquids and small installation spaces.

  • Not suitable for high speeds.

Material and Application Parameters

²Pressure Values as a function of the hap dimension. ³≤Ø280mm: POM ; >Ø280mm: PA6G The specified application parameters are generally valid values and must not be used simultaneously with the application. An order can be placed by specifying the profile type, material and specified housing design dimensions.
Sealing Element Temperature (°C) Max. Sliding Speed (m/s) Maximum Pressure²
HPU Premium -30 - +110 0.3 400 bar (5800psi)
HPU Diet -20 - +110 0.3 400 bar (5800psi)
SLPU -20 - +110 0.4 400 bar (5800psi)
HPU Low Temperature -50 - +110 0.3 400 bar (5800psi)

Standard Dimensions

¹The specified extrusion gap is valid up to 70°C, higher temperatures requre lower values.
Maximum radial extrusion gap s¹ (mm)
Ød f8 (mm) ØD H10 (mm) L +0.2mm H (mm) C (mm) 20 bar 100 bar 200 bar 400 bar
≥5 - ≤25 d + 8 6.30 5.80 3.50 0.33 0.17 0.17 0.05
>25 - ≤50 d + 10 8.00 7.00 4.00 0.37 0.22 0.22 0.10
>50 - ≤150 d + 15 10.00 9.00 5.00 0.46 0.31 0.31 0.19
>150 - ≤300 d + 20 14.00 13.00 6.00 0.54 0.39 0.39 0.26
>300 - ≤500 d + 25 17.00 16.00 8.50 0.61 0.46 0.46 0.33
>500 - ≤600 d + 30 25.00 23.00 10.00 0.67 0.52 0.52 0.39
Rod Seal, Single Acting, Hydraulics

The dimensions s + c are dependent on the respective seal type.

Brightened symbols: seal only for limited use.

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Design Application

Surface Finish

Roughness Rtmax(µm) Ra(µm) Material Portion
Sliding Surface ≤ 2.5 0.1 - 0.3 Ratio contact area: 50 - 95% at a cutting depth of 0.5 x RZ starting from cref = 0%
Groove Base ≤ 6.3 ≤ 1.6
Groove Flanks ≤ 15 ≤ 3