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

Composition: Includes two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings.
Clearance Control: Features spacers between inner and outer rings for precise clearance adjustment.
Load Performance: The optimized structure is capable of withstanding significant radial loads along with certain axial loads simultaneously.

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4. Load-Carrying Capacity

Radial Load Capacity: This bearing offers a radial load capacity of about 2.5 to 3.5 times greater than single-row tapered roller bearings, meeting the stringent demands of high-precision industrial applications.
Load Type Adaptability: It is engineered to handle combined loads where radial forces are dominant, and boasts exceptional performance under both heavy and impactful operating conditions.

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5. Performance Characteristics

Limiting Speed: While this bearing exhibits superior load-bearing performance, this comes at the cost of a lower limiting speed compared to four-row cylindrical roller bearings, due to its structural design.
Axial Load Capacity: It is capable of withstanding bidirectional axial loads, making it a viable option as a thrust bearing for dual-directional 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: Work rolls and backup rolls in rolling mills.
Other Applications: Heavy-duty machinery including cranes, mining equipment, and wind turbines that require high resistance to both static and impact loads.