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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 shaft. The pre-tightening or interference denotes the difference between

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

considered to be less, between 0.8 and 3.5 mm.

Pumping leads

Clockwise

Anti-clockwise

Bi-directional

R

L

H0

Other types of pumping leads can be created according to your specifications. Please

contact our experts.

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DESCRIPTION

The TCWHP profile is a high-pressure

shaft seal composed of a single metal

cage with rubber grooves on the

outside of the cage and a primary

sealing lip with an integrated spring

and an additional anti-pollution lip.

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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

Easy to assemble with very

limited bounce-back effect

Sealing for low and high viscosity fluids

Primary sealing lip designed for

higher pressures up to 1 MPa

Protection against undesirable

air contaminants

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APPLICATIONS

All types of rotative applications

2-stroke engines

Hydrostatic commands

(motors and pumps)

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MATERIALS

Rubber

FKM 75 - 80 - 85 - 90 Shore A

HNBR 75 - 80 - 85 - 90 Shore A

NBR 75 - 80 - 85 - 90 Shore A

Metal cage

Steel - AISI 1010

Spring

Steel - AISI 1070 - 1090

HIGH-PRESSURE

SHAFT SEALS

TCWHP

QUALITY & EXPERTISE FOR YOUR SEALING NEEDS

ROTARY SEALS | HIGH-PRESSURE SHAFT SEALS |

TCWHP