Product Type: Four-Row Tapered Roller Bearing

1. Overview

The 3806/510-1 four-row tapered roller bearing is a high-performance component designed specifically for heavy-duty machinery. With exceptional heavy load and impact load resistance, it is an ideal choice for critical industrial equipment.

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2. Basic Dimensions

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3. Structural Features

Component Composition: The advanced composite raceway structure formed by two double-raceway inner rings, one double-raceway outer ring and two single-raceway outer rings ensures stable operation.
Clearance Adjustment: Precision spacers are built in between inner and outer rings for flexible clearance setting, adapting to different application environments.
Load-Bearing Advantage: Structural optimization provides excellent load capacity, allowing it to bear large radial loads and certain axial loads simultaneously without difficulty.

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4. Load-Carrying Capacity

Radial Load Capacity: It achieves 2.5–3.5 times the radial load capacity of single-row tapered roller bearings, ensuring stable and reliable operation even under extreme high-load situations.
Load Type Adaptability: It is highly adaptable to combined radial and axial loads with radial loads as the primary component, and resists heavy loads and impact forces in severe working environments.

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5. Performance Characteristics

Limiting Speed: Because the structure incorporates sliding contact between the rib and roller end face, four-row tapered roller bearings generate increased friction while running. As a consequence, their limiting speed is relatively lower compared with other bearings of identical size.
Axial Load Capacity: Different from single-row tapered roller bearings with only unidirectional axial load capacity, four-row tapered roller bearings are specially developed to withstand heavy bidirectional axial loads. This capability enables precise axial positioning and effective control of thrust during the rolling process. While excelling in bidirectional thrust resistance, it mainly sustains heavy radial loads.

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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: Core applications are concentrated in the work rolls and backup rolls of rolling mills, with excellent adaptability to the harsh operating conditions of the rolling sector.
Other Applications: It is well suited for various heavy-duty machines such as cranes, mining equipment and wind turbines, showing superior load-bearing and impact-resistant performance in complex working environments.