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 Composition: Made up of two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings, the structure is robust and easy to maintain.
Clearance Adjustment: Spacers between inner and outer rings allow precise clearance adjustment, adapting to the harsh operating environments of local heavy industry.
Load-Bearing Advantage: Structurally optimized to bear large radial loads and certain axial loads at the same time, suitable for high-load and impact-prone working scenarios of mining and rolling mill equipment.

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4. Load-Carrying Capacity

Radial Load Capacity: The radial load-carrying capability is roughly 2.5-3.5 times higher than that of single-row tapered roller bearings, meeting the requirements of high-precision industrial loads.
Load Type Adaptability: Tailored for combined radial and axial loads (with radial loads as the primary), it shows outstanding tolerance to heavy loads and impact loads.

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5. Performance Characteristics

Limiting Speed: The bearing's structure imposes certain limitations, resulting in a lower maximum operating speed compared to four-row cylindrical roller bearings. This reduction in speed is the compromise made for achieving its superior load-bearing performance.
Axial Load Capacity: These bearings are capable of supporting axial loads from both directions. Consequently, they are suitable for application as bidirectional thrust bearings where axial loads must be managed in either direction.

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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: Its design is specifically tailored for work rolls and backup rolls in rolling mills, making it an ideal match for the high-precision and heavy-load requirements characteristic of European mill equipment.
Other Applications: Beyond its primary use, it finds broad applicability in various heavy-duty machines, including cranes, mining machinery, and wind turbines, all of which demand superior performance under high and impactful loads.