RS102R

Rod Seal, Single Acting, Hydraulics
Mechanical drawing of an electronic component with labeled dimensions, showing a blue and gray component with pins extending downward.
Technical drawing of a mechanical part with labeled dimensions and angles, showing a rounded and burr-free design.

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

  • Asymmetrical rod seal with backup ring.

  • Suitable for large extrusion gaps for higher pressure ranges.

  • Good return characteristics, low stick-slip tendency.

  • Standard design with rectangular backup ring.

Diagram showing four types of mechanical motion: linear, static, oscillating, and screwing.

Brightened symbols: seal only for limited use.

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Design Application

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 Support Ring Temperature (°C) Max. Sliding Speed (m/s) Maximum Pressure²
HPU Premium POM / PA6 -30 - +100 0.5 700 bar (10100psi)
HPU Diet POM / PA6 -20 - +100 0.5 700 bar (10100psi)
SLPU POM / PA6 -20 - +100 0.7 700 bar (10100psi)
HPU Low Temperature POM / PA6 -50 - +100 0.5 700 bar (10100psi)
NBR Standard POM / PA6 -30 - +100 0.5 250 bar (3600psi)
FPM Diet PTFE glass -20 - +200 0.5 250 bar (3600psi)
EPDM Spring POM / PA6 -50 - +150 0.5 250 bar (3600psi)
HNBR Diet POM / PA6 -25 - +100 0.5 250 bar (3600psi)
HNBR Diet PTFE glass -25 - +150 0.5 250 bar (3600psi)
Aflas Standard PTFE glass -10 - +200 0.5 250 bar (3600psi)

Standard Dimensions

¹The specified extrusion gap is valid up to 70°C, higher temperatures requre lower values. ²P = Polyurethane, R = Elastomer. ³Maximum service pressure for rubber seals.
Maximum radial extrusion gap s¹ (mm)
P² R² P² R²
Ød f8 (mm) ØD H10 (mm) L +0.2mm H (mm) C (mm) 20 bar 100 bar 250³ bar 400 bar 700 bar
≥23 - ≤25 d + 8 6.30 6.10 3.50 0.80 0.60 0.80 0.8 0.52 0.30 0.04
>25 - ≤50 d + 10 8.00 7.80 4.00 1.00 1.00 1.00 1.00 0.66 0.37 0.04
>50 - ≤150 d + 15 10.00 9.70 5.00 1.50 1.50 1.47 1.40 0.78 0.46 0.05
>150 - ≤300 d + 20 14.00 13.60 6.00 2.00 2.00 1.77 1.66 0.88 0.54 0.06
>300 - ≤500 d + 25 17.00 16.50 8.50 2.50 2.50 2.06 1.91 1.00 0.62 0.0
>500 - ≤700 d + 30 25.00 24.30 10.00 3.00 3.00 2.43 2.18 1.13 0.76 0.06
>700 - d + 40 32.00 31.20 13.00 3.00 3.00 2.43 2.18 1.13 0.76 0.06

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