Product Type:Four-Row Tapered Roller Bearing

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1. Overview

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2. Basic Dimensions

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3. Structural Features

Component Composition: Advanced composite raceway structure (two double-raceway inner rings + one double-raceway outer ring + two single-raceway outer rings) ensures superior stability.
Clearance Adjustment: Built-in precision spacers between inner and outer rings for flexible clearance adjustment, adapting to diverse operating scenarios.
Load-Bearing Advantage: Structural optimization delivers exceptional load capacity, easily handling large radial loads and certain axial loads simultaneously.

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4. Load-Carrying Capacity

Radial Load Capacity: Its radial load capacity is about 2.5-3.5 times stronger than single-row tapered roller bearings, so it works reliably even under high-load conditions.
Load Type Adaptability: It handles combined radial and axial loads well (with radial loads as the main force) and can take heavy loads and impact loads in harsh working environments.

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5. Performance Characteristics

Limiting Speed: Lower than four-row cylindrical roller bearings (structural constraint), with enhanced load-bearing performance as a trade-off.
Axial Load Capacity: Withstands bidirectional axial loads; usable as a bidirectional thrust bearing to meet dual-directional axial requirements.

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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: Mainly used in rolling mill work rolls and backup rolls, well-suited to local rolling industry’s harsh operations.
Other Applications: Fits cranes, mining machinery, wind turbines and other heavy-duty equipment, enduring high loads and impacts in complex environments.