100X150X10-R23, Neutral, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 100, 150, 10
This item is not currently available from our stocks.
Despatch date information is on request.
105X140X12 HMS5 RG, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Single lip, 105, 140, 12, 12, EAN code:07316572553343
18X26X4-R21, Neutral, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Single lip, 18, 26, 4
This item is not currently available from our stocks.
Despatch date information is on request.
18X30X6 HMSA10 V, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Fluoro rubber (FKM), Double lip, 18, 30, 6, 6, EAN code:07316572542590
This item is not currently available from our stocks.
Despatch date information is on request.
18X32X7 HMSA10 V, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Fluoro rubber (FKM), Double lip, 18, 32, 7, 7, EAN code:07316572542675
19823, SKF, Radial shaft seal with metal case and SKF Wave lip
Radial shaft seal, Metal-cased, Fluoro rubber (FKM), Single lip, 50.8, 69.85, 7.95, 7.95, EAN code:85311022309
This item is not currently available from our stocks.
Despatch date information is on request.
150X180X12 HMS5 V, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Fluoro rubber (FKM), Single lip, 150, 180, 12, 12, EAN code:07316572547700
150X180X15-R21, Neutral, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Single lip, 150, 180, 15
This item is not currently available from our stocks.
Despatch date information is on request.
150X180X15 HMSA10RG, SKF, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 150, 180, 15, 15, EAN code:ERROR: #N/A
150X180X15 HMSA10 V, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Fluoro rubber (FKM), Double lip, 150, 180, 15, 15, EAN code:07316572035399
17X28X7 HMSA10RG, SKF, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 17, 28, 7, 7, EAN code:ERROR: #N/A
140X160X12 HMS5 RG, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Single lip, 140, 160, 12, 12, EAN code:07316572553541
16084, SKF, Radial shaft seal with metal case and SKF Wave lip
Radial shaft seal, Metal-cased, Nitrile rubber (NBR), Single lip, 41.28, 60.3, 7.95, 7.95, EAN code:85311016728
20X30X5 HMS5 V, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Fluoro rubber (FKM), Single lip, 20, 30, 5, 5, EAN code:07316572269916
20X32X6-R23, Neutral, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 20, 32, 6
This item is not currently available from our stocks.
Despatch date information is on request.
20X35X7 HMS5 RG, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Single lip, 20, 35, 7, 7, EAN code:07316572031964
20X35X7 HMS5 V, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Fluoro rubber (FKM), Single lip, 20, 35, 7, 7, EAN code:07316572031971
20X40X7 HMS5 V, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Fluoro rubber (FKM), Single lip, 20, 40, 7, 7, EAN code:07316572032015
20X40X7 HMSA10 V, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Fluoro rubber (FKM), Double lip, 20, 40, 7, 7, EAN code:07316572032039
20X47X7 HMS5 RG, SKF, Radial shaft seal with rubber outside diameter and single sealing lip
Radial shaft seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Single lip, 20, 47, 7, 7, EAN code:07316572032084
Radial shaft seals
Radial shaft seals are used between rotating and stationary machine components or between two components in relative motion and consist of two main parts:
- A cylindrical outer covering of sheet steel (case) or an elastomer that has the requisite interference fit to seal statically against the housing bore.
- A sealing lip made of an elastomeric or thermoplastic material that seals dynamically and statically against the shaft. The lip has a sealing edge that is formed by moulding, cutting or grinding. It is normally pressed against the counterface surface of the shaft, with a defined radial load, by a garter spring. The edge of the sealing lip and the shaft counterface surface form the most important functional area of a radial shaft seal. The sealing effect of the lip can be enhanced by designing the contact area of the lip with hydrodynamic features.
Some radial shaft seal designs have an auxiliary lip that protects the primary sealing lip from dust and other contaminants. A suitable lubricant in the space between the primary sealing lip and the auxiliary lip can reduce wear and delay corrosion. Contaminants that have passed the auxiliary lip will eventually cause damage in the counterface surface area. A build-up of heat can also occur between the two lips, resulting in premature wear.
Radial shaft seals are used in a multitude of applications. Because of the importance of radial shaft seals for the operational reliability and service life of machines and equipment, both seal manufacturers and users are equally interested, to some degree, in standardization. These cover boundary dimensions, tolerances, material specifications, test methods and terminology as well as the basic outside diameter constructions and sealing lip arrangements.
The terminology used in this chapter is listed for metal-cased seal and for rubber outside diameter seal.
Maintenance:
- Regularly inspect seals for signs of wear or damage.
- Ensure proper installation to avoid leaks and premature failure.
- Replace seals as part of routine maintenance to maintain system performance.