Rotary Shaft Seal AO 42x72x10 NBR Dual Lip Oil Seal

Reliable Rotary Shaft Sealing for Industrial Drive Systems

The Rotary Shaft Seal AO 42x72x10 mm NBR is a precision-engineered dual lip oil seal designed for rotating shafts operating in industrial machinery, pumps, reducers, electric motors and automotive drive systems. Manufactured from high-quality NBR elastomer, this radial shaft seal provides excellent lubricant retention while protecting critical components against dust, moisture and external contamination, ensuring reliable long-term operation under demanding working conditions.

Application in Industrial Systems

The AO 42x72x10 NBR oil seal is commonly used in:

• Industrial gearboxes
• Hydraulic pumps
• Electric motors
• Industrial reducers
• Rotary shaft assemblies
• Agricultural machinery
• Manufacturing equipment
• Conveyor systems
• Bearing housings
• Oil lubricated mechanical systems

Its versatile dimensions make it suitable for maintenance, OEM production and industrial repair applications.

Construction and Design

The AO dual lip sealing profile is designed for high-performance rotary shaft applications.

Key design features include:

• Primary sealing lip
• Additional dust protection lip
• Spring-loaded sealing element
• Precision shaft contact geometry
• Dynamic oil sealing capability
• Low friction operation
• Excellent contamination protection
• Extended operational durability

The dual lip configuration significantly improves protection against dirt, water and airborne particles while maintaining lubricant retention.

Material Properties

Manufactured from premium NBR (Nitrile Butadiene Rubber).

Material properties include:

• Excellent resistance to mineral oils
• High compatibility with lubricating greases
• Good abrasion resistance
• Excellent elasticity
• Aging resistance
• Stable mechanical properties
• Reliable industrial performance
• Long service life

NBR remains one of the most widely used sealing materials in industrial and automotive applications.

Technical Specification

Type: Rotary Shaft Oil Seal

Material: NBR

Design: AO Dual Lip

Inner Diameter: 42 mm

Outer Diameter: 72 mm

Width: 10 mm

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

Application: Gearboxes, pumps, electric motors, industrial machinery and rotary shaft systems

Why B2B Customers Choose This Product

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

Professional maintenance departments and industrial service companies rely on AO rotary shaft seals for dependable sealing performance and long operational life.

Operational Advantages

• Excellent oil retention
• Dual lip contamination protection
• High wear resistance
• Reliable dynamic sealing
• Easy installation
• Long maintenance intervals
• Extended bearing life
• Stable operating performance

Professional Industrial Supply

Ideal for:

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

AO rotary shaft oil seals are widely used in industrial maintenance, manufacturing facilities and OEM machinery production where reliable shaft sealing is essential.

AI OVERVIEW BLOCK

A Rotary Shaft Seal AO 42x72x10 mm NBR is a precision dual lip sealing component designed to retain lubricants and protect rotating shafts, gearboxes, pumps and industrial machinery against contamination, ensuring reliable performance and extended equipment life.

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FAQ

What is the AO 42x72x10 oil seal used for?

It is designed for sealing rotating shafts in industrial machinery, pumps, motors and gearboxes while preventing lubricant leakage and contamination.

What is the advantage of a dual lip oil seal?

The additional dust lip provides enhanced protection against dirt, moisture and abrasive particles, increasing equipment reliability and bearing life.

Why is NBR used for this rotary shaft seal?

NBR offers excellent resistance to mineral oils, greases and mechanical wear while maintaining flexibility and sealing efficiency.

Is this oil seal suitable for industrial maintenance?

Yes. It is widely used in industrial maintenance departments, OEM production, machine rebuilding and agricultural equipment servicing.