Product Type: Four-Row Tapered Roller Bearing

1. Overview

Engineered for heavy-duty machinery, the 380695 four-row tapered roller bearing provides high-level performance. Its exceptional capability to endure heavy and impact loads qualifies it as the ideal choice for key industrial equipment.

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2. Basic Dimensions

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3. Structural Features

Component Composition: Designed with an advanced composite raceway structure featuring two double-raceway inner rings, one double-raceway outer ring and two single-raceway outer rings, it ensures superior stability.

Clearance Adjustment: High-precision spacers integrated between inner and outer rings enable flexible clearance adjustment to fit diverse operating environments.
Load-Bearing Advantage: Through structural optimization, the bearing achieves excellent load capacity and can carry heavy radial loads and certain axial loads simultaneously.

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4. Load-Carrying Capacity

Radial Load Capacity: Its radial load capacity is 2.5–3.5 times that of single-row tapered roller bearings, ensuring uninterrupted reliability even under extremely high loads.
Load Type Adaptability: It performs remarkably with combined radial and axial loads, mainly radial loads, and stands firm against heavy loads and impact forces in rough working environments.

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5. Performance Characteristics

Limiting Speed: Due to the sliding contact between the rib and roller end, these bearings experience greater friction during operation, leading to a relatively lower limiting speed than comparable bearings.
Axial Load Capacity: In contrast to single-row tapered roller bearings that support only unidirectional axial loads, the four-row structure is optimized for heavy bidirectional axial loads. This ensures reliable axial positioning and effectively absorbs thrust during rolling. It primarily undertakes heavy radial loads, perfectly suited for complex industrial load applications.

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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: It is mainly used for work rolls and backup rolls in rolling mills, and is well adapted to the harsh operating conditions of the rolling industry.
Other Applications: It is also suitable for various heavy-duty machinery including cranes, mining equipment and wind turbines, performing excellently in withstanding high loads and impact loads under complex working conditions.