SKF Nitrile Rubber (NBR) Seal, 12 mm ID, 22 mm OD, 6 mm

This seal is a rotary shaft sealing component designed to separate rotating and stationary parts in machinery, preventing lubricant leakage and limiting contaminant ingress. It features an elastomeric sealing lip and a rubber outer diameter for a secure housing fit, intended for oil or grease sealing in industrial equipment where relative motion occurs.

• Garter spring ensures consistent lip contact at varying shaft speeds
• Auxiliary non-contacting lip improves exclusion of dust and debris
• Nitrile rubber lip resists common oils and greases during operation
• Accepts slight misalignment to maintain effective sealing under load
• Permits circumferential speeds up to 2.05 m/s for moderate-speed shafts

• Suitable for bearings in automation drives and gearboxes
• Ideal for motor shafts in electrical equipment maintenance
• Used with rotating assemblies in mechanical manufacturing machinery
• Can be used for sealing housings in electronics cooling fans

It operates continuously from −40°C up to 100°C with short excursions to 120°C for intermittent conditions.

The seal is rated for a maximum circumferential speed of 2.05 m/s and a rotational speed up to 3240 r/min, beyond which performance may degrade.

The allowable pressure differential across the seal is 0.03 N/mm², suitable for low-pressure retention applications.

Use a thin protective sleeve such as the manufacturer’s Speedi-Sleeve to restore worn shaft journals before fitting the seal.