SKF Nitrile Rubber (NBR) Seal, 20 mm ID, 37 mm OD, 7 mm

This radial shaft seal is designed to separate rotating and stationary machine parts, providing fluid retention and exclusion of contaminants in equipment that handles oil or grease. It features a rubber outer diameter and an additional non‑contacting lip to improve protection in polluted environments, making it suitable for rotating shafts where maintaining lubricant and excluding debris are required.

• Garter spring maintains tight contact with shaft for consistent sealing
• Auxiliary non‑contacting lip increases contamination exclusion efficiency
• Nitrile rubber lip resists oil and grease for extended service life
• Rubber outside diameter aids secure press‑fit into housing bore
• Permits circumferential speeds up to 4.12 m/s for moderate‑speed applications

• Suitable for sealing 20mm shaft assemblies in gearboxes and motors
• Ideal for bearing housings requiring rubber OD installation
• Used with rotating drives in automation equipment handling lubricants
• Can be used for replacement of shaft Seals in industrial machinery

It functions between −40°C to 100°C with short‑term tolerance up to 120°C.

Maximum rotational speed is 3960 r/min

It is rated for a pressure differential of 0.03 N/mm, suitable for low‑pressure retention tasks.