200X250X15-R21, Neutral, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Single lip, 200, 250, 15
This item is not currently available from our stocks.
Despatch date information is on request.
38X54X10 HMSA10RG, SKF, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 38, 54, 10, 10, EAN code:ERROR: #N/A
39245, SKF, Radial shaft seal with double metal case, SKF Wave lip , for oil or grease
Radial shaft seal, Double Metal-cased, Nitrile rubber (NBR), Single lip, 100.03, 123.85, 11.13, 11.13, EAN code:85311034104
42X55X8 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, 42, 55, 8, 8, EAN code:07316572544570
64X80X8 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, 64, 80, 8, 8, EAN code:07316572546192
65X110X10-R23, Neutral, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 65, 110, 10
This item is not currently available from our stocks.
Despatch date information is on request.
40X50X8 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, 40, 50, 8, 8, EAN code:07316572544099
This item is not currently available from our stocks.
Despatch date information is on request.
40X55X8 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, 40, 55, 8, 8, EAN code:07316572033777
40X62X7 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, 40, 62, 7, 7, EAN code:07316572033951
40X72X7 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, 40, 72, 7, 7, EAN code:07316572545737
42528, SKF, Radial shaft seal with double metal case, SKF Wave lip , for oil or grease
Radial shaft seal, Double Metal-cased, Nitrile rubber (NBR), Single lip, 107.95, 139.85, 10.99, 10.998, EAN code:85311035149
52X68X8 HMSA10RG, SKF, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 52, 68, 8, 8, EAN code:ERROR: #N/A
60X80X10 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, 60, 80, 10, 10, EAN code:07316572035009
150X180X12 HMSA10RG, SKF, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 150, 180, 12, 12, EAN code:ERROR: #N/A
25X35X6 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, 25, 35, 6, 6, EAN code:07316572542811
25X40X7 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, 25, 40, 7, 7, EAN code:07316572032312
25X40X8 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, 25, 40, 8, 8, EAN code:07316572248973
25X62X10 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, 25, 62, 10, 10, EAN code:07316572545065
250X280X15 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, 250, 280, 15, 15, EAN code:07316572547953
280X320X20 CRWA1 R, SKF, Radial shaft seal with metal case, SKF Wave lip and auxiliary, contacting lip
Radial shaft seal, Metal-cased, Nitrile rubber (NBR), Double lip, 280, 320.31, 19.99, 19.99, EAN code:85311043540
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.