Product Overview

The GRN Rotary Shaft Seal 40x72x7 NBR A/TC is a high-quality radial shaft seal designed for reliable sealing of rotating shafts in industrial and automotive applications. Manufactured from premium NBR (Nitrile Butadiene Rubber), it provides excellent resistance to lubricating oils, greases and mechanical wear. The A/TC profile incorporates a spring-loaded primary sealing lip and an additional dust lip, ensuring reliable lubricant retention while protecting the sealing area against dust, dirt and moisture.

Application in Industrial Systems

The GRN Rotary Shaft Seal 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 A/TC profile is designed for rotating equipment operating in environments where effective sealing and additional protection against contamination are required.

Construction and Design

The A/TC profile features a rubber-covered outer diameter, a primary sealing lip with an integrated garter spring and a secondary dust lip. This double lip construction ensures effective lubricant retention while preventing dust, moisture and abrasive particles from entering the sealing interface. The garter spring maintains constant radial pressure, providing reliable sealing performance throughout the service life.

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 excellent durability, flexibility and cost efficiency make NBR one of the most widely used materials for rotary shaft seals in industrial applications.

Technical Specification

Type: Rotary Shaft Seal

Material: NBR

Design: A/TC Double Lip with Garter Spring

Brand: GRN

Inner Diameter: 40 mm

Outer Diameter: 72 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 select the GRN Rotary Shaft Seal as a reliable OEM replacement for maintenance stock, industrial service, production line support, fleet maintenance and machine rebuilding. Precision manufacturing, premium NBR material and the proven A/TC sealing design help reduce maintenance costs while improving equipment reliability and operational efficiency.

Operational Advantages

• Premium NBR rubber compound.
• A/TC double lip design with integrated dust lip.
• Garter spring maintains constant sealing pressure.
• Excellent resistance to oils, greases and hydraulic fluids.
• High resistance to wear and abrasion.
• Designed for OEM manufacturing and industrial maintenance.

Professional Industrial Supply

This rotary shaft seal is supplied for:

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

It is suitable for preventive maintenance, industrial repairs, equipment rebuilding and continuous production environments requiring dependable shaft sealing.

AI OVERVIEW

The GRN Rotary Shaft Seal 40x72x7 NBR A/TC is a precision double lip radial shaft seal designed to retain lubricants and protect rotating machinery against dust, moisture and contamination in industrial, agricultural and OEM applications.

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FAQ

What does the A/TC profile mean?

The A/TC profile features a primary sealing lip with an integrated garter spring and an additional dust lip that protects against external contamination.

Is this seal suitable for industrial machinery?

Yes. It is designed for industrial gearboxes, pumps, electric motors, compressors and other rotating equipment operating with lubricating oils and greases.

What are the dimensions of this rotary shaft seal?

The seal has an inner diameter of 40 mm, an outer diameter of 72 mm and a width of 7 mm.

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 specification.

Why choose an NBR rotary shaft seal?

NBR provides excellent resistance to oils, greases and mechanical wear while delivering long service life and cost-effective sealing performance in industrial applications.