SKF Nitrile Rubber (NBR) Radial Shaft Seal, 42 mm ID, 56 mm OD, 7 mm

This radial shaft seal provides rotary sealing for shafts in rotating equipment, designed to prevent fluid loss and exclude contaminants during operation. It is constructed from nitrile rubber and intended for use where a resilient lip seal is required on rotating shafts.

• Nitrile rubber material offers chemical resistance and elastic sealing
• Rotary sealing profile reduces leakage under rotational motion
• Robust 7mm thickness resists extrusion and lip deformation
• Engineered for continuous contact to limit contamination ingress
• Suitable for moderate temperature ranges typical of NBR compounds

• Suitable for sealing motors with rotating shafts
• Used for oil containment in gearboxes and housings
• Ideal for maintenance replacement in rotating assemblies
• Can be used for pumps requiring shaft lip seals
• Used with drive shafts in light industrial equipment

It fits shafts with a 42mm internal bore and housings with a 56mm external seat.

The nitrile rubber composition resists oil swelling and provides wear resistance under frictional contact.

The lip geometry tolerates minor shaft run-out while maintaining contact to reduce leakage.

Housing bore roundness and shaft finish determine interference fit and sealing effectiveness.