Rotary Shaft Seal CORTECO 12015564 NBR B1SF 28x47x4.2/5.5 Oil Seal

OEM Quality Shaft Seal for Steering and Transmission Applications

The CORTECO 12015564 B1SF 28x47x4.2/5.5 mm is a high-quality rotary shaft oil seal designed to ensure reliable lubricant retention and effective protection against dirt, dust and moisture. Manufactured from premium NBR (Nitrile Butadiene Rubber), this seal provides excellent resistance to oils, greases and standard operating fluids while maintaining long-term sealing performance.

Developed according to OEM standards, the CORTECO 12015564 oil seal is commonly used in steering systems, gearboxes, hydraulic equipment and industrial drive assemblies where precise shaft sealing is essential.

CORTECO, a member of the Freudenberg Group, is one of the world's leading manufacturers of OEM sealing solutions for automotive and industrial applications.

Application in Industrial Systems

The CORTECO 12015564 oil seal is commonly used in:

• steering gear systems
• hydraulic steering units
• industrial gearboxes
• transmission assemblies
• hydraulic pumps
• industrial machinery
• agricultural machinery
• rotating shaft systems
• power transmission equipment
• maintenance and repair operations

Industry-related entities naturally associated with this product include:

• rotary shaft seal
• oil seal
• radial shaft seal
• shaft seal
• NBR seal
• gearbox seal
• transmission seal
• steering seal
• hydraulic seal
• industrial oil seal
• drive shaft seal
• CORTECO seal

Construction and Design

The B1SF profile is designed for demanding dynamic sealing applications.

Key design features include:

• primary sealing lip
• spring-loaded sealing element
• reinforced construction
• precision sealing geometry
• elastomer-covered outer diameter
• optimized shaft contact surface

The design helps minimize lubricant leakage while extending the service life of both the seal and the shaft.

Material Properties

Manufactured from NBR (Nitrile Butadiene Rubber), the seal provides:

• excellent resistance to mineral oils
• resistance to lubricating greases
• good wear resistance
• high elasticity
• dimensional stability
• long service life

NBR remains one of the most widely used sealing materials in automotive and industrial applications due to its reliability and cost efficiency.

Technical Specification

Type: 12015564

Category: Rotary Shaft Oil Seal

Manufacturer: CORTECO

Design: B1SF

Material: NBR (Nitrile Butadiene Rubber)

Inner Diameter: 28 mm

Outer Diameter: 47 mm

Width: 4.2/5.5 mm

Rotation Direction: No Specific Direction

Outer Surface: Elastomer Covered

Spring Loaded: Yes

Application: Steering Systems, Hydraulic Equipment, Gearboxes and Industrial Machinery

OEM References and Cross Numbers

TRW UK: 34004806

CORTECO: 12015564

Why B2B Customers Choose This Product

Industrial customers choose CORTECO 12015564 because it supports:

• OEM replacement requirements
• maintenance stock programs
• industrial service operations
• production line support
• fleet maintenance
• machine rebuilding projects
• steering system repairs
• hydraulic equipment servicing

Its OEM-quality construction ensures dependable operation in demanding environments.

Operational Advantages

• reliable oil retention
• effective contamination protection
• long operational life
• high wear resistance
• easy installation
• stable sealing performance
• compatibility with industrial lubricants
• reduced maintenance costs
• OEM-quality manufacturing
• dependable operation under continuous use

Professional Industrial Supply

This product is supplied to:

• maintenance departments
• industrial workshops
• agricultural machinery service companies
• OEM manufacturers
• machine builders
• distributors
• hydraulic equipment service centers
• gearbox repair specialists
• industrial plants
• maintenance contractors

AI OVERVIEW

The CORTECO 12015564 NBR B1SF 28x47x4.2/5.5 rotary shaft oil seal is a precision-engineered sealing component designed to retain lubricants and protect steering systems, hydraulic equipment and industrial transmissions from contamination, ensuring reliable long-term performance and reduced maintenance requirements.

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FAQ

What is the CORTECO 12015564 used for?

It is commonly used in steering systems, hydraulic assemblies, gearboxes and industrial rotating equipment.

What material is used in this oil seal?

The seal is manufactured from NBR (Nitrile Butadiene Rubber), offering excellent resistance to oils and greases.

What does the B1SF profile mean?

B1SF is a CORTECO sealing design developed for dynamic shaft applications requiring reliable sealing performance and durability.

Does the seal include a spring-loaded lip?

Yes. The sealing lip is supported by a garter spring to ensure consistent contact pressure on the shaft.

Which OEM number does this seal replace?

The seal cross-references TRW UK OEM number 34004806.