Product Type: Four-Row Tapered Roller Bearing

1. Overview

Built as a high-performance component exclusively for heavy-duty machinery, the 3819/560 four-row tapered roller bearing offers superior resistance to heavy and impact loads, making it perfectly suited for critical industrial equipment.

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2. Basic Dimensions

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3. Structural Features

Component Composition: Superior stability is achieved through an advanced composite raceway structure featuring two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings.
Clearance Adjustment: Integrated precision spacers positioned between the inner and outer rings enable adjustable clearance, adapting flexibly to diverse application scenarios.
Load-Bearing Advantage: Thanks to structural optimization, the bearing offers outstanding load capacity — effortlessly handling high radial loads and some axial loads simultaneously.

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4. Load-Carrying Capacity

Radial Load Capacity: It possesses 2.5–3.5 times the radial load capacity of single-row tapered roller bearings, ensuring stable performance even under the most extreme high-load conditions.
Load Type Adaptability: It delivers excellent performance under combined radial and axial loads with radial loads as the dominant component, and withstands heavy loads and impact forces in tough environments.

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5. Performance Characteristics

Limiting Speed: The sliding contact between the rib and roller end face, a key feature of its structure, increases friction during the operation of four-row tapered roller bearings. As a result, these bearings have a comparatively lower limiting speed than other bearings with identical dimensions, for example four-row cylindrical roller bearings.
Axial Load Capacity: Single-row tapered roller bearings are only capable of unidirectional axial load resistance, while four-row tapered roller bearings are engineered to manage heavy bidirectional axial loads. This enables accurate axial location of the shaft and efficient control of thrust produced in the rolling process. While boasting excellent bidirectional thrust performance, it primarily sustains heavy radial loads, perfectly suited for complicated load conditions.

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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: Predominantly used in work rolls and backup rolls of rolling mills, it perfectly adapts to the demanding working conditions of the rolling sector.
Other Applications: Ideal for various heavy-duty equipment like cranes, mining machinery and wind turbines, it demonstrates excellent ability to withstand heavy loads and impact loads under complex working situations.