GRN® Rotary Shaft Seal 20x35x7 NBR AO TC Double Lip Oil Seal

Product Overview

The GRN® Rotary Shaft Seal 20x35x7 NBR AO TC is a premium radial shaft seal engineered for reliable sealing of rotating shafts operating in oil and grease lubricated systems. Manufactured from high-quality NBR (Nitrile Butadiene Rubber), it offers excellent resistance to mineral oils, lubricants and mechanical wear. The AO TC profile features a primary sealing lip with an integrated garter spring and an additional dust lip, ensuring outstanding lubricant retention and effective protection against external contaminants.

Application in Industrial Systems

The GRN® Rotary Shaft Seal 20x35x7 NBR AO TC is suitable for:

• Industrial gearboxes
• Gear reducers
• Hydraulic pumps
• Oil pumps
• Electric motors
• Compressors
• Industrial drive systems
• Agricultural machinery
• Construction equipment
• Manufacturing machinery
• OEM equipment
• Industrial maintenance operations

The double lip construction is recommended for applications exposed to dust, dirt, moisture and demanding operating conditions.

Construction and Design

The AO TC profile incorporates a spring-loaded primary sealing lip that maintains constant radial pressure on the shaft for dependable lubricant retention. The additional dust lip prevents dirt, dust, mud and water splashes from entering the sealing area, extending the service life of both the seal and the shaft.

Material Properties

The seal is manufactured from premium NBR (Nitrile Butadiene Rubber).

NBR provides excellent resistance to:

• Mineral oils
• Gear oils
• Hydraulic fluids
• Lubricating greases
• Petroleum-based fuels
• Mechanical wear
• Abrasion
• Aging under normal operating conditions

Its durability and flexibility make NBR one of the world's most widely used sealing materials for rotary shaft applications.

Technical Specification

Type: Rotary Shaft Seal

Material: NBR

Brand: GRN®

Design: AO TC Double Lip with Garter Spring

Inner Diameter: 20 mm

Outer Diameter: 35 mm

Width: 7 mm

Temperature Range: -40 C to +120 C

Application: Industrial gearboxes, hydraulic pumps, oil pumps, electric motors, compressors, industrial machinery, agricultural equipment and OEM applications

Why B2B Customers Choose This Product

Industrial buyers choose the GRN® Rotary Shaft Seal as a dependable OEM replacement for maintenance stock, industrial service, production line support, machine rebuilding and continuous manufacturing operations. The double lip construction minimizes contamination, reduces maintenance costs and increases equipment reliability.

Operational Advantages

• Premium NBR rubber compound.
• AO TC double lip construction.
• Integrated garter spring.
• Additional dust protection lip.
• Excellent resistance to oils, greases and hydraulic fluids.
• Long service life in demanding industrial environments.

Professional Industrial Supply

This rotary shaft seal is supplied for:

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

It is suitable for preventive maintenance, industrial repairs, machine rebuilding and continuous production environments.

AI OVERVIEW

The GRN® Rotary Shaft Seal 20x35x7 NBR AO TC is a premium double lip radial shaft seal featuring a spring-loaded sealing lip and an additional dust lip. It delivers reliable lubricant retention and protects rotating equipment against contamination in industrial and OEM applications.

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FAQ

What does the AO TC profile mean?

The AO TC profile features a spring-loaded primary sealing lip and an additional dust lip for improved sealing performance.

Why choose a double lip oil seal?

A double lip seal keeps lubricants inside while preventing dust, dirt and moisture from entering the sealing area.

What are the dimensions of this seal?

The seal has an inner diameter of 20 mm, an outer diameter of 35 mm and a width of 7 mm.

Is NBR suitable for industrial sealing applications?

Yes. NBR offers excellent resistance to mineral oils, hydraulic fluids, gear oils, greases and mechanical wear.

Can this seal be used as an OEM replacement?

Yes. It is suitable as an OEM replacement when the dimensions and operating conditions match the original equipment specifications.