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: For heavy-duty applications, the component integrates two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings.
Clearance Adjustment: Spacers between inner and outer rings ensure precise clearance tuning to match application requirements.
Load-Bearing Advantage: Structural optimization allows it to simultaneously bear large radial loads and certain axial loads, ideal for high-demand equipment.

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4. Load-Carrying Capacity

Radial Load Capacity: Boasting radial load capacity 2.5–3.5 times that of single-row tapered roller bearings, it maintains reliable performance even in extreme high-load conditions.
Load Type Adaptability: It excels at handling combined radial-axial loads (radial as the primary force) and resists heavy loads and impact loads in the harshest working environments.

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5. Performance Characteristics

Limiting Speed: The limiting speed is moderately lower than four-row cylindrical roller bearings as a result of structural design, but heavy-load operating scenarios are fully accommodated.
Axial Load Capacity: Axial loads from both directions can be borne, and it is effectively utilized as a bidirectional thrust bearing in harsh industrial environments.

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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: Work rolls and backup rolls of rolling mills are the specific targets for this product’s design, and the high-precision and heavy-load requirements of European rolling mill equipment are perfectly matched by it.
Other Applications: Heavy-duty mechanical equipment including cranes, mining machinery, and wind turbines widely adopt this product, as excellent resistance to high loads and impact loads is demanded by such equipment.