SKF Nitrile Rubber (NBR) Seal, 25 mm ID, 38 mm OD, 7 mm

This seal is a rotary shaft sealing component designed to separate rotating and stationary parts in machinery, preventing lubricant escape and excluding contaminants. It features a rubber outer diameter and a single elastomeric sealing lip with an auxiliary non‑contacting lip and garter spring to maintain effective contact on the shaft in polluted environments. The construction suits oil or grease applications across common industrial equipment.

• Short-term temperature handling up to 120°C
• Permits circumferential speed up to 5.03 m/s
• Maximum rotational speed rated at 3,840 r/min
• Pressure differential capability of 0.03 N/mm enhances retention
• Dust‑excluding auxiliary lip improves contamination resistance

• Suitable for sealing gearboxes in automation systems
• Ideal for motors in electrical drive assemblies
• Used with pumps handling oil or grease lubricants
• Can be used for bearings in mechanical equipment
• Used for rotating shafts in electronic cooling fans

The primary sealing element is nitrile rubber (NBR) and the outside diameter is rubber with metal reinforcement.

A garter spring maintains radial force on the sealing lip, allowing compensation for minor misalignment and surface irregularities.

Yes, it is rated for short periods at temperatures up to 120°C while continuous operation is limited to 100°C.

A Speedi-Sleeve accessory is listed as an associated product for restoring damaged shaft bores.