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Sélectionner tout	Attribut	Valeur
	Marque	SKF
	Inside Diameter	28mm
	Product Type	Radial Shaft Seal
	Outside Diameter	40mm
	Seal Type	Rotary Shaft Seal
	Thickness	7mm
	Seal Material	Nitrile Rubber (NBR)

Datasheet - 28X40X7 HMS5 RG

Pays d'origine :: CN

SKF Radial Shaft Seal, 28mm Inside Diameter, 40mm Outside Diameter - 28X40X7 HMS5 RG

This radial shaft seal provides a rotary sealing solution for shafts, designed to retain fluids and exclude contaminants in rotating assemblies. It is manufactured from nitrile rubber and suited for applications requiring a resilient lip seal with standard sealing geometry.

Features and Benefits:

• Nitrile rubber composition offering chemical resistance and elasticity
• Rotary lip design maintaining dynamic sealing under rotation
• 7mm cross-section supporting stable axial contact pressure
• 28mm internal bore ensuring firm shaft fit for concentricity
• 40mm external diameter enabling secure housing seating

Applications

• Suitable for small gearbox shaft sealing tasks
• Ideal for sealing pump rotary shafts in light machinery
• Used with motor shafts requiring oil retention
• Can be used for bearing housing contamination exclusion
• Appropriate for general industrial maintenance replacements

What material properties affect temperature and fluid compatibility?

The nitrile rubber compound provides balanced resistance to common oils and moderate operating temperatures while retaining elasticity.

How should one confirm correct radial fit during installation?

Measure shaft and housing diameters precisely and ensure interference tolerances match the seal’s internal and external dimensions.

What inspection criteria indicate seal replacement is needed?

Look for hardened or cracked material, deformed sealing lip, or loss of elasticity as signs that replacement is required.

How does the seal maintain sealing under rotation?

The rotary lip geometry generates a pressure-assisted contact with the shaft, preserving fluid retention during shaft movement.

SKF Nitrile Rubber (NBR) Radial Shaft Seal, 28 mm ID, 40 mm OD, 7 mm

Frais de livraison offerts pour toute commande de plus de 90,00 €