QUALITY & EXPERTISE FOR YOUR SEALING NEEDS

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SEAL DESIGN

Tolerance for the outside diameter of the seal (ØD)

Bore diameter

ØD1 (mm)

Apparent metal cage

Rubber coating

Coating with grooves

ØD1 ≤ 50.0

+0.10 / +0.20

+0.15 / +0.30

+0.20 / +0.40

50.0 < ØD1 ≤ 80.0

+0.13 / +0.23

+0.20 / +0.35

+0.25 / +0.45

80.0 < ØD1 ≤ 120.0

+0.15 / +0.25

+0.20 / +0.35

+0.25 / +0.45

120.0 < ØD1 ≤ 180.0

+0.18 / +0.28

+0.25 / +0.45

+0.30 / +0.55

180.0 < ØD1 ≤ 300.0

+0.20 / +0.30

+0.25 / +0.45

+0.30 / +0.55

300.0 < ØD1 ≤ 500.0

+0.23 / +0.35

+0.30 / +0.55

+0.35 / +0.65

500.0 < ØD1 ≤ 630.0

+0.23 / +0.35

+0.35 / +0.65

+0.40 / +0.75

Roundness tolerance

Bore diameter

ØD1 (mm)

Apparent metal cage

Rubber coating

ØD1 ≤ 50.0

0.18

0.25

50.0 < ØD1 ≤ 80.0

0.25

0.35

80.0 < ØD1 ≤ 120.0

0.30

0.50

120.0 < ØD1 ≤ 180.0

0.40

0.65

180.0 < ØD1 ≤ 300.0

0.25% of the outside diameter

0.80

300.0 < ØD1 ≤ 500.0

0.25% of the outside diameter

1.00

500.0 < ØD1 ≤ 630.0

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Tolerance for the inside diameter of the seal (Ød)

Free and without constraint, the inside diameter of the sealing lip is always smaller than

the diameter of the rod. The pre-tightening or interference denotes the difference between

these two values. Depending on the rod diameter, the diameter of the sealing lip is generally

considered to be less, between 0.8 and 3.5 mm.

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DESCRIPTION

The TC4 profile is a shaft seal

composed of a single metal cage

with a rubber coating and a double

sealing lip with an integrated spring,

suitable for linear movements.

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ADVANTAGES

Very good static sealing

Very good thermal expansion

compensation

Greater roughness is

allowed in the housing

Reduced risk of corrosion

Sealing for low and high viscosity fluids

Modern primary sealing lip

with low radial forces

Protection against undesirable

air contaminants

Sealing lips designed for

linear movements

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APPLICATIONS

All types of linear applications

Shock absorbers

Power-assisted steering

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MATERIALS

Rubber

FKM 75 - 80 Shore A

HNBR 75 - 80 Shore A

NBR 75 - 80 Shore A

Metal cage

Steel - AISI 1010

Steel - DC01 C490

Steel - DC01 C590

Spring

Steel - AISI 1070 - 1090

Stainless steel - AISI 316

SEALS FOR LINEAR

MOVEMENTS

TC4

ROTARY SEALS | SEALS FOR LINEAR MOVEMENTS |

TC4