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: Two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings constitute the core structure.
Clearance Adjustment: Spacers inserted between inner and outer rings allow for precise adjustment of the operational clearance.
Load-Bearing Advantage: Structural optimization is implemented to enable the simultaneous bearing of substantial radial loads and moderate axial loads.

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4. Load-Carrying Capacity

Radial Load Capacity: Outperforming single-row tapered roller bearings by 2.5–3.5 times in radial load capacity, it delivers unwavering reliability under high-load conditions.
Load Type Adaptability: What sets it apart is its excellent adaptability to combined radial-axial loads (radial dominant) and its ability to stand up to heavy loads and impact loads in harsh working environments.

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5. Performance Characteristics

Limiting Speed: Slightly < four-row cylindrical roller bearings (structural design) → fully suitable for heavy-load operating scenarios.
Axial Load Capacity: Bidirectional axial load bearing; excels as 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: The product is specifically engineered for the work rolls and backup rolls of rolling mills, and it perfectly aligns with the high-precision and heavy-load requirements of European rolling mill equipment.
Other Applications: It is widely applicable to heavy-duty mechanical equipment, including cranes, mining machinery, and wind turbines, all of which demand exceptional resistance to high loads and impact loads.