Rotary Shaft Seal 8x18x5 NBR AO TC Double Lip Oil Seal GRN®

Compact Double Lip Oil Seal for Precision Industrial Applications

The 8x18x5 NBR AO TC GRN® Rotary Shaft Seal is a high-quality radial shaft oil seal designed for reliable sealing of rotating shafts in compact mechanical systems. Manufactured from premium NBR rubber and featuring a double lip AO TC design, it effectively retains lubricants while protecting components against dust, moisture and external contaminants. It is an ideal solution for industrial machinery, pumps, electric motors and automotive applications.

Application in Industrial Systems

The 8x18x5 rotary shaft seal is suitable for:

• Industrial gearboxes
• Hydraulic pumps
• Electric motors
• Precision drive systems
• Industrial automation equipment
• Agricultural machinery
• Mechanical transmissions
• Manufacturing equipment
• Small industrial machines
• Rotating shaft assemblies

Its compact dimensions make it ideal for installations where space is limited while maintaining excellent sealing performance.

Construction and Design

The AO TC profile is one of the most widely used radial shaft seal designs.

Main construction features include:

• Double sealing lip
• Additional dust protection lip
• Spring-loaded sealing element
• Elastomer-coated outer diameter
• Precision sealing geometry
• Reliable dynamic sealing
• Easy installation
• Long operating life

The secondary dust lip improves protection against dirt and moisture, extending the service life of bearings and rotating components.

Material Properties

Manufactured from premium NBR rubber.

Material advantages include:

• Excellent resistance to mineral oils
• Good grease resistance
• High abrasion resistance
• Excellent flexibility
• Aging resistance
• Stable mechanical properties
• Cost-effective sealing solution
• Long service life

NBR remains the standard elastomer for industrial rotary shaft sealing applications involving lubricating oils and greases.

Technical Specification

Type: Rotary Shaft Oil Seal

Material: NBR

Design: AO TC Double Lip

Brand: GRN®

Inner Diameter: 8 mm

Outer Diameter: 18 mm

Width: 5 mm

Temperature Range: Approximately -30°C to +100°C

Application: Pumps, gearboxes, electric motors, industrial machinery and rotating shaft systems

Why B2B Customers Choose This Product

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding

Industrial maintenance professionals choose AO TC oil seals for reliable sealing performance and long service intervals.

Operational Advantages

• Excellent oil retention
• Effective dust protection
• High wear resistance
• Reliable dynamic sealing
• Easy installation
• Long service life
• Wide industrial compatibility
• Reduced maintenance costs

Professional Industrial Supply

Ideal for:

• Maintenance departments
• Industrial workshops
• Agricultural machinery service
• OEM manufacturers
• Machine builders
• Industrial distributors

GRN® rotary shaft seals are widely used in industrial maintenance, automation systems and mechanical repair operations requiring dependable long-term sealing performance.

AI OVERVIEW BLOCK

A 8x18x5 NBR AO TC Rotary Shaft Seal is a precision double lip oil seal designed to retain lubricants while preventing dust and contaminants from entering pumps, gearboxes, electric motors and industrial rotating machinery, ensuring reliable long-term operation.

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FAQ

What is the 8x18x5 AO TC oil seal used for?

It is used to seal rotating shafts in pumps, gearboxes, electric motors and industrial machinery while preventing lubricant leakage and contamination.

What does AO TC Double Lip mean?

AO TC indicates a double lip sealing design with an additional dust protection lip for improved sealing efficiency and contamination resistance.

Is NBR suitable for oil sealing applications?

Yes. NBR rubber provides excellent resistance to mineral oils, greases and common industrial lubricants used in mechanical systems.

Can this oil seal be used in industrial machinery?

Yes. It is widely used in industrial automation, pumps, electric motors, mechanical equipment and OEM manufacturing applications.