As one of the most essential types of rolling bearings, tapered roller bearings are known for their excellent ability to handle both radial and axial loads. Based on structural design and load capacity, they can be classified into single-row, double-row, and four-row types, widely used in industries such as metallurgy, heavy equipment, machine tools, mining, automotive, and rolling mills.
Single-Row Tapered Roller Bearings
Single-row tapered roller bearings consist of an inner ring, an outer ring, and a cage with tapered rollers. They feature a compact structure and easy installation, suitable for handling radial loads and unidirectional axial loads. These bearings typically need to be paired to achieve accurate axial positioning in both directions.
Product Features:
Simple structure, compact and easy to install
Capable of withstanding radial and unidirectional axial loads
Requires pairing for bi-directional axial positioning
Typical Applications:
Automotive rear wheel hubs, large machine tool spindles, high-power gear reducers, conveyor systems, and heavy-duty transport equipment.
Double-Row Tapered Roller Bearings
Double-row tapered roller bearings incorporate two rows of rollers in one bearing unit, capable of handling high radial and bi-directional axial loads. Common structures include TDI (double inner) and TDO (double outer) types.
Product Advantages:
Strong axial rigidity, ideal for fluctuating or impact load conditions
Suitable for dual-direction axial positioning
Fewer components, higher rigidity, and simplified installation
Adjustable clearance by changing spacer ring thickness
Typical Applications:
Speed reducers, winding machines, steel rolling mills, wind turbine main shafts, and mid-size mechanical transmission assemblies.
Four-Row Tapered Roller Bearings
Four-row tapered roller bearings are specially engineered for heavy load and high-precision applications. With superior radial and axial load capacities, they are suitable for combined loads and harsh industrial environments.
Product Features:
Radial load capacity is 2 to 3 times higher than that of single-row bearings
Effectively limits axial movement, suitable for bi-directional positioning
Compact design saves installation space
Lower limiting speed, suitable for low-speed, heavy-duty operations
Typical Applications:
Hot and cold rolling mills, billet mill main rolls, heavy-duty metallurgy machinery, and other impact-intensive systems.
Summary: Bearing Type Comparison
| Type | Features | Application Scenarios |
|---|
| Single-Row | Simple structure, requires paired use | Automotive hubs, machine tool spindles, gear reducers |
| Double-Row | Handles dual-directional loads, mid-speed | Wind turbines, speed reducers, winding systems |
| Four-Row | Heavy-duty, axial positioning, impact use | Rolling mill main shafts, metallurgy and steel machinery |
Contact us
Contact CHG today to request samples or get personalized solutions for your equipment needs.
Website: www.chgbearings.com
Email: info@chg-bearing.com
Phone: +86 0379 65793878
