26373, SKF, Radial shaft seal with metal case, SKF Wave lip and auxiliary, non-contacting lip
Radial shaft seal, Metal-cased, Polyacrylate elastomer (ACM), 66.68, 115.9, 18.26, 18.26, EAN code:85311028035
26X36X7-R23, Neutral, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 26, 36, 7
This item is not currently available from our stocks.
Despatch date information is on request.
26X37X7-BAU3SL1-902, Freudenberg Sealing Technologies, Radial Shaft Seal - Simmerring®
FST Code : 40411197, Nitrile rubber (NBR), Double lip, 26, 37, 7
This item is not currently available from our stocks.
Despatch date information is on request.
26X37X7-R21, Neutral, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Single lip, 26, 37, 7
This item is not currently available from our stocks.
Despatch date information is on request.
26X37X7 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, 26, 37, 7, 7, EAN code:07316572548844
26X37X7 HMSA10RG, SKF, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 26, 37, 7, 7, EAN code:ERROR: #N/A
26X38X5 HMSA10RG, SKF, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 26, 38, 5, 5, EAN code:ERROR: #N/A
26X38X7 HMSA10RG, SKF, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Double lip, 26, 38, 7, 7, EAN code:ERROR: #N/A
26X40X6-BABSL05-595, Freudenberg Sealing Technologies, Radial Shaft Seal - Simmerring®
FST Code : 40412979, Rubber (Metal reinforced), Fluoro rubber (FKM), Double lip, 26, 40, 6
This item is not currently available from our stocks.
Despatch date information is on request.
27295, SKF, Radial shaft seal with double metal case, SKF Wave lip and auxiliary, non-contacting lip
Radial shaft seal, Double Metal-cased, Polyacrylate elastomer (ACM), Double lip, 69.85, 89.99, 11.13, 11.13, EAN code:85311028332
27334, 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, 69.85, 92.02, 11.13, 11.13, EAN code:85311028387
27365, SKF, Radial shaft seal with double metal case, SKF Wave lip , for oil or grease
Radial shaft seal, Double Metal-cased, Fluoro rubber (FKM), Single lip, 69.85, 95.28, 11.13, 11.13, EAN code:85311028424
27368, 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, 69.85, 95.28, 11.13, 11.13, EAN code:85311028431
27394, SKF, Radial shaft seal with metal case and single sealing lip, for grease
Radial shaft seal, Metal-cased, Nitrile rubber (NBR), 69.85, 95.28, 6.35, 6.35, EAN code:85311028462
27452, SKF, Radial shaft seal with double metal case, SKF Wave lip and auxiliary, non-contacting lip
Radial shaft seal, Double Metal-cased, Polyacrylate elastomer (ACM), Double lip, 69.85, 98.45, 11.13, 11.13, EAN code:85311028516
27470, 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, 69.85, 98.45, 11.13, 11.13, EAN code:85311028530
27471, SKF, Radial shaft seal with double metal case, SKF Wave lip and auxiliary, non-contacting lip
Radial shaft seal, Double Metal-cased, Nitrile rubber (NBR), Double lip, 69.85, 98.45, 11.13, 11.13, EAN code:85311028547
275150037-R21, Neutral, Radial shaft seal
Seal, Rubber (Metal reinforced), Nitrile rubber (NBR), Single lip, 38.1, 69.85, 9.525, 1.5, 2.75, 0.375
This item is not currently available from our stocks.
Despatch date information is on request.
27565, SKF, Radial shaft seal with double metal case, SKF Wave lip and auxiliary, non-contacting lip
Radial shaft seal, Double Metal-cased, Polyacrylate elastomer (ACM), Double lip, 69.85, 101.68, 11.13, 11.13, EAN code:85311028608
64X80X8 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, 64, 80, 8, 8, EAN code:07316572552094
This item is not currently available from our stocks.
Despatch date information is on request.
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.