SKF Nitrile Rubber (NBR) Seal, 25 mm ID, 35 mm OD, 6 mm

This radial shaft seal provides a dynamic barrier between rotating and stationary components to retain oil or grease in machinery. It features a rubber outer diameter and a single elastomeric sealing lip with a garter spring to maintain radial pressure, making it suitable for installations where a rubber-to-housing Interface is required and where moderate misalignment may occur.

• Permits circumferential speed up to 5.03 m/s for moderate rpm applications
• Withstands continuous temperatures from -40°C to 100°C for varied environments
• Short-term temperature tolerance to 120°C for transient thermal events
• Garter spring maintains consistent radial load to reduce leakage risk
• Handles pressure differential of 0.03 N/mm to resist minor fluid backflow
• Accommodates shaft runout and misalignment to prolong service life

• Suitable for gearbox oil retention in industrial automation systems
• Ideal for motor shafts in electrical drive assemblies
• Used for sealing bearing housings in mechanical plant equipment
• Can be used in servo and precision actuator shafts requiring low leakage
• Used with rotating modules in electronic cooling systems

It is intended for a 25mm shaft and fits a 35mm housing bore with a 6mm seal width.

The sealing lip is MADE from nitrile rubber (NBR) selected for oil resistance and compatibility with common lubricants.

The construction and material combination limit maximum rotational speed to 3,840 rpm to maintain lip integrity and spring effectiveness.

A thin metal sleeve such as a Speedi-Sleeve can be used where a damaged housing bore requires repair before seal fitting.