Product Type: Four-Row Tapered Roller Bearing

1. Overview

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2. Basic Dimensions

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3. Structural Features

Component Composition: The key components are two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings.
Clearance Adjustment: Spacers between inner and outer rings allow precise clearance tuning to fit your equipment.
Load-Bearing Advantage: Structural optimization lets it bear large radial loads and certain axial loads at once, meeting your operational needs.

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4. Load-Carrying Capacity

Radial Load Capacity: In comparison with single-row tapered roller bearings, this component’s radial load capacity is enhanced by 2.5–3.5 times, providing superior reliability under high-load conditions.
Load Type Adaptability: Unlike components with limited load adaptability, it performs well with combined radial-axial loads (radial dominant) and resists heavy/impact loads in harsh working environments.

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5. Performance Characteristics

Limiting Speed: How’s its limiting speed? A bit lower than four-row cylindrical roller bearings (due to structure), but it’s fully good for heavy-load scenarios.
Axial Load Capacity: What axial loads can it handle? Both sides’ axial loads, and it works well as a bidirectional thrust bearing in harsh industrial settings.

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6. Material & Manufacturing

Heat Treatment: Special heat treatment process applied to enhance hardness, wear resistance, and fatigue life.

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7. Application Fields

Primary Application: What’s it mainly used for? Work rolls and backup rolls of rolling mills—perfect for European rolling mill equipment’s high-precision and heavy-load needs.
Other Applications: Any other uses? It’s widely applied to heavy-duty machinery like cranes, mining equipment, and wind turbines that require excellent high-load and impact load resistance.