Oil Seal TC4

The TC4 profile is a special double lip seal for motorcycles and bicycles shock absorbers, composed of a single rubbercoated metal cage, a double sealing lip, with spring, and an additional anti-dust lip, suitable for linear movements.

CHARACTERISTICS 
  • 1. Very good static sealing.
  • Very good thermal expansion compensation
  • Greater roughness is allowed in the casing.
  • Reduced risk of corrosion.
  • Sealing for low- and high-viscosity fluids
  • Modern primary sealing lip with low radial forces
  • Protection against undesirable air pollutants.
  • Sealing lips designed for linear movements.

See our gInstallation guide for oil seals to perform a correct installation of the seal. 

ø ºC bar m/s
15-100 mm
-30ºC / 100ºC
≤ 6.5 bar
≤ 1,5 m/s
MATERIALS

Elastomer

    NBR 80-90 Shore A

    HNBR 80-90 Shore A

    XNBR 80-90 Shore A

Metal casing

AISI 1060-90 - AISI 304 - AISI 316

Spring

AISI 1060-90 - AISI 302 - AISI 304 - AISI 316

TOLERANCES FOR THE OUTSIDE DIAMETER OF THE OIL SEAL
Housing diameter Metal cage Elastomeric coating Housing with grooves
≤50.0+0.10 / +0.20+0.15 / +0.30+0.20 / +0.40
<50.0 ≤80.0+0.13 / +0.23+0.20 / +0.35+0.25 / +0.45
<80.0 ≤120.0+0.15 / +0.25+0.20 / +0.35+0.25 / +0.45
<120.0 ≤180.0+0.18 / +0.28+0.25 / +0.45+0.30 / +0.55
<180.0 ≤300.0+0.20 / +0.30+0.25 / +0.45+0.30 / +0.55
<300.0≤500.0+0.23 / +0.35+0.30 / +0.55+0.35 / +0.65
<500.0 ≤630.0+0.23 / +0.35+0.35 / +0.65+0.40 / +0.75
TOLERANCE FOR THE INNER DIAMETER OF THE SEAL 

The inner diameter of the sealing lip is always smaller than the shaft diameter. Depending on the shaft size, the sealing lip diameter is generally between 0.8 and 3.5 mm smaller than the shaft diameter.

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