SKF Nitrile Rubber (NBR) Seal, 50 mm ID, 68 mm OD, 10 mm

This seal is a rotary shaft sealing component designed to prevent fluid leakage and exclude contaminants in rotating equipment. It is intended for use where a resilient contact element is required to maintain a barrier between a shaft and its housing. The construction uses an elastomer material chosen for resistance to common oils and greases, making it suitable for continuous rotational service in industrial assemblies.

• Nitrile rubber material offers oil resistance and wear tolerance
• Rotary shaft design maintains sealing contact during rotation
• Compact thickness reduces axial space requirements
• Low-friction sealing profile supports smooth shaft operation
• Robust external form aids installation within housings

• Suitable for sealing shaft ends in small gearboxes and drives
• Ideal for use in electric motor output shafts
• Used with pumps to retain lubricants and prevent ingress
• Can be used for actuator shafts in automation equipment
• Used for bearings to limit contamination in mechanical assemblies

The nitrile rubber compound provides good resistance to mineral oils, greases and common hydraulic fluids while offering moderate resistance to fuels and some solvents.

The inner diameter must match the shaft running diameter closely to ensure lip contact, and the outer diameter should press into the housing bore to produce a secure interference fit.

The sealing lip maintains continuous contact with the rotating surface, creating a dynamic barrier that minimises fluid loss while tolerating standard shaft misalignment and surface finish variations.

Its thin sectional profile allows use where axial clearance is limited, enabling sealing functionality without significant increase in assembly length.