Rotary Shaft Seal 15x25x5 NBR B1 Single Lip Oil Seal

Product Overview

The Rotary Shaft Seal 15x25x5 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, excellent dimensional stability and long-lasting sealing performance.

Application in Industrial Systems

The Rotary Shaft Seal 15x25x5 NBR B1 is suitable for:

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

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 against the shaft throughout its operating life.

The metal outer surface improves housing retention, installation accuracy and mechanical strength under continuous 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 excellent balance of flexibility, durability and cost efficiency makes NBR one of the world's most widely used elastomers 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: 15 mm

Outer Diameter: 25 mm

Width: 5 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 choose 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 reliable sealing performance while reducing maintenance costs and equipment downtime.

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 for long-term industrial operation.

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 15x25x5 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 installation requirements, it provides reliable lubricant retention and long-lasting sealing performance for industrial rotating equipment.

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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 reliable oil retention and secure installation.

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 15 mm, an outer diameter of 25 mm and a width of 5 mm.

Which standards does this seal follow?

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.