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

This design features a configuration of two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings. Precise clearance adjustment is achieved through the use of spacers between these rings. Furthermore, the structurally optimized design enables it to simultaneously withstand substantial radial loads and certain axial loads.

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4. Load-Carrying Capacity

Radial Load Capacity: The radial load-carrying capacity reaches approximately 2.5-3.5 times that of single-row tapered roller bearings, complying with high-precision industrial load requirements.
Load Type Adaptability: Specifically designed for combined radial and axial loads (with radial loads as the primary component), and demonstrates excellent resistance to heavy loads and impact loads.

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5. Performance Characteristics

Limiting Speed: The enhanced load-bearing performance is achieved at the expense of limiting speed, which is inherently lower due to structural constraints compared to four-row cylindrical roller bearings.
Axial Load Capacity: These bearings possess the capability to sustain axial loads in either direction, thereby allowing their deployment as bidirectional thrust bearings.

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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: Engineered for work rolls and backup rolls within rolling mill systems.
Other Applications: Extended to various heavy-duty equipment like cranes, mining machinery, and wind turbines, where high load capacity and impact resistance are critical.