RS129

Rod Seal, Single Acting, Hydraulics

  • O-Ring supported PTFE sealing element, single acting.

  • Excellent frictional properties; for low and high speeds.

  • In combination with double lipped wiper RA211 or rod seal RS101.

  • Very good suitability for pressure surges.

Material and Application Parameters

²Pressure Values as a function of the hap dimension. 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 Preload Element Temperature (°C) Max. Sliding Speed (m/s) Maximum Pressure²
PTFE glass NBR 70 -30 - +100 10 600 bar (8700psi)
FKM 75 -20 - +200
PTFE bronze NBR 70 -30 - +100 10 600 bar (8700psi)
FKM 75 -20 - +200
PTFE carbon NBR 70 -30 - +100 10 600 bar (8700psi)
FKM 75 -20 - +200

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 R (mm) H (mm) C (mm) ØOR (mm) 100 bar 200 bar 400 bar 600 bar
>4 - ≤8 d + 4.90 2.20 0.40 2.00 2.50 1.78 0.30 0.20 0.15 0.05
>8 - ≤19 d + 7.30 3.20 0.60 3.00 3.50 2.62 0.40 0.25 0.15 0.05
>19 - ≤38 d + 10.70 4.20 1.00 4.00 4.00 3.53 0.40 0.25 0.20 0.10
>38 - ≤200 d + 15.10 6.30 1.30 6.10 5.00 5.33 0.50 0.30 0.20 0.10
>200 - ≤256 d + 20.50 8.10 1.80 7.90 6.00 7.00 0.60 0.35 0.25 0.15
>256 - ≤650 d + 24.00 8.10 1.80 7.90 8.00 7.00 0.60 0.35 0.25 0.15
>650 - ≤1000 d + 27.30 9.50 2.50 9.10 10.00 8.40 0.70 0.50 0.30 0.20
>1000 - ≤2000 d + 38.00 13.80 3.00 13.30 12.00 12.00 1.00 0.70 0.60 0.30

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 - 0.5 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