SKF Nitrile Rubber (NBR) Seal, 25 mm ID, 52 mm OD, 10 mm

This radial shaft seal provides a rotary sealing solution for interfaces between moving and stationary components in mechanical and electromechanical equipment. It is designed to retain lubricant and exclude contaminants in environments where shafts rotate relative to housings, offering compatibility with oil and grease lubrication and engineered for use in automated and industrial assemblies.

• Nitrile elastomer lip resists oils and greases, extending service life
• Auxiliary non-contact lip reduces contaminant ingress in polluted settings
• Garter spring ensures consistent radial contact under rotation
• Withstands shaft circumferential speeds up to 5.03 m/s for high-speed applications
• Operates between -40°C to 100°C for broad temperature ranges

• Suitable for bearing protection in automation equipment
• Ideal for motor shafts in electrical drives
• Used with gearboxes in industrial machinery
• Suitable for actuator and servo assemblies in robotics
• Can be used for pump-shaft sealing in fluid systems

The flexible elastomer lip and spring-assisted contact allow modest angular and axial misalignments typical in rotating assemblies without loss of sealing function.

It tolerates brief peaks up to 120°C, enabling continuity during transient thermal events in drive trains.

The maximum recommended rotational speed is 3,840 r/min, beyond which sealing integrity may be compromised.

A standard bore prepared to accept a rubber outside diameter with metal reinforcement is needed to ensure correct fit and retention.

A thin-walled remediation sleeve can be used to repair worn shafts prior to fitting to restore proper sealing contact.