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, two single-raceway outer rings — that’s the main makeup.
Clearance Adjustment: Spacers between inner and outer rings let you adjust the clearance accurately.
Load-Bearing Advantage: Optimized structure means it can bear large radial loads and certain axial loads simultaneously.

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4. Load-Carrying Capacity

Radial Load Capacity: Let’s put it simply—its radial load capacity is about 2.5 to 3.5 times stronger than single-row tapered roller bearings. That means it works reliably even when under heavy loads.
Load Type Adaptability: It works great with both radial and axial loads (radial is the main one) and can take heavy loads and impact loads, even in tough working environments.

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5. Performance Characteristics

Limiting Speed: Though limiting speed is somewhat lower than four-row cylindrical roller bearings (structural design), it aligns perfectly with the requirements of heavy-load operating scenarios.
Axial Load Capacity: It excels at bearing axial loads from both sides, serving as a high-performance 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: Engineered exclusively for work rolls and backup rolls of rolling mills, it is a perfect match for European rolling mill equipment’s strict high-precision and heavy-load requirements.
Other Applications: Beyond rolling mills, it is widely used in heavy-duty machinery (cranes, mining equipment, wind turbines) that demands excellent resistance to high loads and impact loads.