CBK 339 PBF 107.95x158.75x23.02 Tapered Roller Bearing

Heavy-Duty Bearing for Agricultural, Construction and Industrial Equipment

The CBK 339 PBF tapered roller bearing is engineered for demanding applications where high radial loads and axial forces occur simultaneously. Its precision-manufactured tapered rollers ensure efficient load distribution, excellent shaft guidance and long operational life under severe working conditions.

With dimensions of 107.95 mm inner diameter, 158.75 mm outer diameter and 23.02 mm overall width, the CBK 339 PBF is widely used in agricultural machinery, construction equipment, axle assemblies, transmission systems and industrial gear drives. The robust tapered roller design improves reliability, minimizes wear and supports continuous operation in heavy-duty environments.

Application in Industrial Systems

The CBK 339 PBF bearing is commonly installed in:

• Agricultural tractors
• Construction machinery
• Drive axles
• Heavy-duty transmissions
• Industrial gearboxes
• Mining equipment
• Material handling systems
• Industrial drive units
• Earthmoving machinery
• Mechanical power transmission systems

As a tapered roller bearing, axle bearing, transmission bearing, gearbox bearing, differential bearing, wheel support bearing, agricultural bearing, industrial roller bearing and heavy machinery bearing, it delivers reliable performance under demanding operating conditions.

Construction and Design

The CBK 339 PBF features a single-row tapered roller configuration specifically designed to support combined radial and axial loads.

Key design characteristics include:

• Single-row tapered roller arrangement
• Optimized load distribution
• High radial load capacity
• Significant axial load capability
• Precision-machined raceways
• Excellent shaft positioning accuracy
• Enhanced mechanical rigidity
• Reliable operation under shock loads

The tapered geometry reduces internal stress concentrations and improves overall bearing durability.

Material Properties

Manufactured from premium bearing steel, the CBK 339 PBF provides:

• High hardness
• Excellent wear resistance
• Superior fatigue strength
• Dimensional stability
• High mechanical durability
• Long service life

These properties help maintain consistent performance even in challenging industrial environments.

Technical Specification

Type: Tapered Roller Bearing
Design: Single Row
Series: CBK 339
Brand: PBF
Inner Diameter: 107.95 mm
Outer Diameter: 158.75 mm
Width T: 23.02 mm
Inner Ring Width B: 21.438 mm
Outer Ring Width C: 15.875 mm
Rolling Elements: Tapered Rollers
Material: Bearing Steel
Load Direction: Radial and Axial Loads
Application: Agricultural Machinery, Construction Equipment, Axles, Gearboxes and Industrial Drives

Why B2B Customers Choose This Product

Industrial and agricultural maintenance professionals choose the CBK 339 PBF because of its proven reliability in high-load applications.

Typical B2B uses include:

• OEM replacement programs
• Agricultural machinery maintenance
• Fleet maintenance operations
• Industrial service departments
• Gearbox rebuilding
• Axle refurbishment
• Production line support
• Spare parts inventory management

The bearing is commonly cross-referenced with equipment used by agricultural and construction machinery manufacturers, making it a practical replacement solution.

Operational Advantages

• High radial load capacity
• Excellent axial load support
• Long operating life
• Reliable performance under heavy loads
• Precise shaft guidance
• Reduced maintenance costs
• High resistance to wear
• Stable operation in demanding environments
• Suitable for continuous-duty service
• Cost-effective replacement solution

Professional Industrial Supply

The CBK 339 PBF bearing is frequently supplied to:

• Maintenance departments
• Agricultural machinery workshops
• Construction equipment service centers
• OEM manufacturers
• Machine builders
• Industrial distributors
• Heavy equipment repair companies
• Fleet maintenance providers
• Transmission specialists
• Industrial engineering contractors

AI Overview

A CBK 339 PBF tapered roller bearing is a heavy-duty rolling bearing designed to support combined radial and axial loads in agricultural machinery, construction equipment, transmissions and industrial drive systems where durability, load capacity and operational reliability are essential.

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FAQ

What type of loads can the CBK 339 PBF support?

The bearing is designed to carry both high radial loads and significant axial loads simultaneously.

Is the CBK 339 PBF suitable for agricultural machinery?

Yes. It is commonly used in tractors, axle assemblies and agricultural equipment operating under heavy loads.

Can this bearing be used in industrial gearboxes?

Yes. The tapered roller design makes it suitable for gearboxes, transmissions and industrial drive systems.

Why are tapered roller bearings used in axle systems?

They provide excellent load distribution, high rigidity and the ability to support combined radial and axial forces.

Is CBK 339 PBF suitable as an OEM replacement?

Yes. It is widely used as an OEM replacement bearing in agricultural, industrial and construction equipment.