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: The bearing adopts a composite structure including two inner rings with double raceways, one outer ring with double raceways, and two outer rings with single raceways, ensuring stable force distribution.
Clearance Adjustment: Special spacers are arranged between the inner and outer rings, which can accurately adjust the bearing clearance to meet different working condition requirements.
Load-Bearing Advantage: Through structural optimization, the bearing achieves the performance of withstanding large radial loads and certain axial loads at the same time, improving the overall load-bearing efficiency.

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4. Load-Carrying Capacity

Radial Load Capacity: Delivers 2.5-3.5 times the radial load capacity of single-row tapered roller bearings, ensuring uncompromising reliability even under extreme high-load scenarios.
Load Type Adaptability: Performs exceptionally well with combined radial and axial loads (radial loads as the main component) and stands up to heavy loads and impact forces in tough working conditions.

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5. Performance Characteristics

Limiting Speed: While its limiting speed is somewhat lower than four-row cylindrical roller bearings (due to structural design), this is balanced by significantly improved load-bearing performance—ideal for heavy-load scenarios.
Axial Load Capacity: With the ability to bear axial loads from both directions, it functions reliably as a bidirectional thrust bearing, perfectly suited to applications requiring dual-directional axial load support.

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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: Core application lies in work rolls and backup rolls of rolling mills, perfectly adapting to the tough operating conditions of the local rolling sector.
Other Applications: Ideal for diverse heavy-duty mechanical equipment such as cranes, mining machinery, and wind turbines, excelling at withstanding high loads and impact loads in complex working scenarios.