Rotary Shaft Seal 20x52x7 NBR B1 Single Lip Oil Seal

Product Overview

The Rotary Shaft Seal 20x52x7 NBR B1 is a precision radial shaft seal designed to provide reliable sealing for rotating shafts operating in oil and grease lubricated systems. Manufactured from premium NBR (Nitrile Butadiene Rubber), it offers excellent resistance to mineral oils, lubricants and mechanical wear. The B1 profile features a spring-loaded primary sealing lip reinforced with a metal outer case, ensuring secure installation, long service life and dependable sealing performance in demanding industrial applications.

Application in Industrial Systems

The Rotary Shaft Seal 20x52x7 NBR B1 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 B1 design is intended for installation in open housing grooves manufactured according to ISO 6194 and DIN 3760 standards.

Construction and Design

The B1 profile consists of a single spring-loaded sealing lip reinforced by a rigid metal outer case. The sealing element is manufactured from vulcanized NBR bonded to a steel reinforcing ring, while the integrated garter spring maintains constant radial pressure on the shaft throughout the service life.

The metal outer surface provides excellent housing retention and improves installation stability in demanding operating conditions.

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, elasticity and cost efficiency make NBR one of the world's most widely used sealing materials for rotary shaft sealing applications.

Technical Specification

Type: Rotary Shaft Seal

Material: NBR

Design: B1 Single Lip with Garter Spring and Metal Outer Case

Inner Diameter: 20 mm

Outer Diameter: 52 mm

Width: 7 mm

Standards: ISO 6194, DIN 3760

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 this rotary shaft seal as a dependable OEM replacement for maintenance stock, industrial service, production line support, fleet maintenance and machine rebuilding. The reinforced metal outer case, premium NBR compound and spring-loaded sealing lip provide long service life, reduced downtime and reliable sealing performance.

Operational Advantages

• Premium NBR rubber compound.
• B1 single lip construction.
• Reinforced metal outer case.
• Integrated garter spring for constant sealing force.
• Excellent resistance to oils, greases and hydraulic fluids.
• Manufactured according to ISO 6194 and DIN 3760 installation standards.

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, machine rebuilding and continuous production environments requiring dependable shaft sealing.

AI OVERVIEW

The Rotary Shaft Seal 20x52x7 NBR B1 is a precision single lip radial shaft seal with a reinforced metal outer case and integrated garter spring. Designed according to ISO 6194 and DIN 3760, it provides reliable lubricant retention and long-lasting sealing performance in industrial and OEM machinery.

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FAQ

What does the B1 profile mean?

The B1 profile features a single spring-loaded sealing lip with a reinforced metal outer case for secure installation and reliable oil sealing.

What is the purpose of the garter spring?

The garter spring maintains constant radial pressure on the shaft, ensuring consistent sealing performance and compensating for normal lip wear.

What are the dimensions of this rotary shaft seal?

The seal has an inner diameter of 20 mm, an outer diameter of 52 mm and a width of 7 mm.

Which standards does this seal comply with?

The seal is designed for installation according to ISO 6194 and DIN 3760 housing standards.

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.