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 Set: Two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings.
Integrated Spacers: For precise clearance adjustment between rings.
Combined Load Capacity: Optimized structure to handle large radial and some axial loads at the same time.

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4. Load-Carrying Capacity

Radial Load Capacity: Engineered to provide a radial load capacity that is 2.5-3.5 times higher than single-row tapered roller bearings, it satisfies the critical requirements of high-precision industries.
Load Type Adaptability: The design is optimized for applications with combined radial and axial loading (primarily radial), and it exhibits superior tolerance for heavy and shock loads.

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5. Performance Characteristics

Limiting Speed: The limiting speed is somewhat lower than that of four-row cylindrical roller bearings due to structural design, but it remains fully suitable for heavy-load operating scenarios.
Axial Load Capacity: It can bear axial loads from both directions and functions effectively as a 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: Finds its main use in the work rolls and backup rolls of rolling mills.
Other Applications: Also applied in fields utilizing heavy-duty machinery such as cranes, mining equipment, and wind turbines, particularly where high and impact load resistance is a prerequisite.