Radial shaft seals for heavy industrial applications

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Radial shaft seals, also known as lip seals, are used to seal rotary elements, such as a shaft or rotating bore. Common examples include strut seals, hydraulic pump seals, axle seals, power steering seals, and valve stem seals. Early radial shaft seals utilized rawhide as the sealing element, and many elastomeric seal companies today once were tanneries. The advent of modern elastomers replaced rawhide, industry also added a garter spring which helps the sealing lip compensate for lip wear and elastomer material changes.

The seal construction will consist of a sprung main sealing lip which has a point contact with the shaft. The point contact is formed by two angles, with the air side angle usually less than the oil side angle. Depending on the seal type these two angles are varied to create a pressure distribution at the seal contact point which has a steeper slope on the oil side of the seal. The shallower the slope on the oil side of the seal the wetter the seal will run. The spring is positioned such that axially the centerline of the spring is biased to the air side of the lip contact point.

In order to exclude contaminants numerous types of dust lips or exclusionary lips may be used. Common elastomers include FKM, ACM, NBR, HNBR, and AEM. In order to resist wear, the compounds' durometer (hardness) is typically 70 to 85 Shore A (between that of an automobile tire and a soft inline-skate wheel).

skf 2000238 Radial shaft seals for heavy industrial applications

7/16-20 0.5620 in
Alloy Steel Self-Lubricating

skf 1150250 Radial shaft seals for heavy industrial applications

1024 mm 13200 kN
15 mm 58 mm

skf 610x660x20 HDS2 R Radial shaft seals for heavy industrial applications

1.6250 in Zinc Plated
0.6250 in 0.7500 in

skf 650x710x25 HDS2 R Radial shaft seals for heavy industrial applications

Female Threaded Alloy Steel Heat Tre
0.1875 in Carbon Steel

skf 1550550 Radial shaft seals for heavy industrial applications

1830 kgf 40 mm
2990 kgf Cast Iron

skf 300x335x18 HDS2 R Radial shaft seals for heavy industrial applications

Standard 30.00 KGS
200mm 24040kejw33-timken

skf 920x984x25 HDS1 V Radial shaft seals for heavy industrial applications

Plain Lead, PTFE
50 mm 45 mm

skf 90017 Radial shaft seals for heavy industrial applications

skf 90017
1 pcs Negotiable

skf 300x360x25 HDS2 V Radial shaft seals for heavy industrial applications

0.6250 in Uncoated
10044 15 mm

skf 3125544 Radial shaft seals for heavy industrial applications

111000 lbf 42500 lbf
2800 RPM 1 in

skf 440x480x20 HDS1 V Radial shaft seals for heavy industrial applications

52100 Bearing Steel 5.5625 in
767303 Lubrication Fitting

skf 1525250 Radial shaft seals for heavy industrial applications

5700 lbf Non-Expansion Bearin
3450 lbf Double Lip
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