SKF Nitrile Rubber (NBR) Radial Shaft Seal, 40 mm ID, 80 mm OD, 8 mm

This radial shaft seal is designed to prevent fluid leakage and exclude contaminants in rotating machinery. It is suitable for use where a resilient sealing lip is required around a spinning shaft, offering a Durable Interface between stationary housings and moving components in industrial equipment.

• Nitrile rubber material offers resistance to oils and fuels
• Rotary design maintains continuous contact during shaft movement
• Thin-profile 8mm cross-section minimises axial space requirements
• Symmetric geometry reduces vibration-induced leakage risk
• Robust sealing lip preserves performance under repeated shaft rotation

• Suitable for gearbox oil retention in light industrial equipment
• Ideal for use in motor end-shields and pump housings
• Used with rotating shafts in conveyor drive systems
• Can be used for maintenance replacements in workshop repairs
• Suitable for assemblies requiring Compact shaft sealing solutions

The seal is MADE from nitrile rubber which provides resistance to many oils and petroleum-based fluids, influencing suitability for hydrocarbon-exposed applications.

Select the seal to match the shaft diameter to ensure the sealing lip contacts the journal without excessive interference, allowing proper rotation and sealing.

Look for lip distortion, hardening, tearing or visible extrusion of the elastomer as signs that the seal should be replaced.

Minor angular or radial shaft runout can be tolerated due to the flexible lip design, but significant misalignment will increase wear and reduce service life.