Product Type:Four-Row Tapered Roller Bearing

1. Overview

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2. Basic Dimensions

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3. Structural Features

The bearing assembly is constituted by two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings. The interface between ring sets incorporates spacers, a design that provides for precise clearance adjustment. Structurally, the configuration is optimized to accommodate concurrent application of large radial loads and defined axial loads.

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4. Load-Carrying Capacity

Radial Load Capacity: Achieving 2.5 to 3.5 times the radial load capacity of single-row tapered roller bearings, this bearing is built for the rigorous demands of high-precision industries.
Load Type Adaptability: It is purpose-built for applications involving combined loads (primarily radial) and offers robust performance against severe heavy and impact loads.

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5. Performance Characteristics

Limiting Speed: Its limiting speed, though moderate compared to four-row cylindrical roller bearings, is optimal for heavy-load scenarios due to its robust design.
Axial Load Capacity: With its capacity to handle axial loads from both sides, it is well-suited for use as a bidirectional thrust bearing in challenging industrial 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: Serves as a key component for work rolls and backup rolls in rolling mills.
Other Applications: Its use extends to multiple heavy-duty sectors, exemplified by cranes, mining machinery, and wind turbines – all applications mandating robust performance under high and impactful loads.