GRN Rotary Shaft Seal 25x40x7 NBR TC/BASL Double Lip Oil Seal

Product Overview

The GRN Rotary Shaft Seal 25x40x7 NBR AO/BASL is a high-quality radial shaft seal engineered for reliable sealing of rotating shafts in industrial and automotive applications. Manufactured from premium NBR (Nitrile Butadiene Rubber), it offers excellent resistance to oils, greases and mechanical wear. The AO/BASL profile incorporates a spring-loaded primary sealing lip and an additional dust lip, ensuring effective lubricant retention while preventing dust, dirt and moisture from entering the sealing system.

Application in Industrial Systems

The GRN Rotary Shaft Seal is suitable for:

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

The AO/BASL profile is ideal for applications requiring reliable sealing and additional protection against external contamination.

Construction and Design

The AO/BASL profile features a rubber-covered outer diameter, a spring-loaded primary sealing lip and a secondary dust lip. This double lip construction improves lubricant retention while preventing dust, moisture and abrasive particles from reaching the sealing interface. The garter spring maintains constant radial pressure on the shaft for consistent sealing performance.

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 balance of flexibility, durability and cost efficiency makes NBR one of the most widely used sealing materials for rotary shaft seals.

Technical Specification

Type: Rotary Shaft Seal

Material: NBR

Design: AO/BASL Double Lip with Garter Spring

Brand: GRN

Inner Diameter: 25 mm

Outer Diameter: 40 mm

Width: 7 mm

Temperature Range: -40 C to +120 C

Application: Industrial gearboxes, hydraulic pumps, water 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 reliable OEM replacement for maintenance stock, industrial service, production line support, fleet maintenance and machine rebuilding. Precision manufacturing, durable NBR material and the proven AO/BASL sealing design help reduce maintenance costs while extending the service life of rotating equipment.

Operational Advantages

• Premium NBR rubber compound.
• AO/BASL 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, equipment refurbishment and continuous industrial production requiring dependable shaft sealing.

AI OVERVIEW

The GRN Rotary Shaft Seal 25x40x7 NBR AO/BASL 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 AO/BASL profile mean?

The AO/BASL profile features a primary sealing lip with an integrated garter spring and a secondary dust lip for enhanced protection against contamination.

Is this seal suitable for hydraulic equipment?

Yes. The NBR compound provides excellent compatibility with hydraulic fluids, mineral oils, gear oils and lubricating greases.

What are the dimensions of this rotary shaft seal?

The seal has an inner diameter of 25 mm, an outer diameter of 40 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.

Where is this rotary shaft seal commonly used?

It is widely used in gearboxes, pumps, electric motors, compressors, agricultural machinery and industrial drive systems.