Product Type: Four-Row Tapered Roller Bearing

1. Overview

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2. Basic Dimensions

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3. Structural Features

Component Composition: The bearing adopts a sophisticated composite structure consisting of two inner rings each with double raceways, one outer ring with a double raceway, and two outer rings each with a single raceway. This design is engineered to ensure the stable distribution of mechanical forces.
Clearance Adjustment: Between the inner and outer rings, special spacers are positioned to enable the accurate adjustment of bearing clearance, ensuring compatibility with a wide range of working condition requirements.
Load-Bearing Advantage: Structural optimization has endowed the bearing with the ability to simultaneously withstand large radial loads and specific axial loads, resulting in a notable improvement in its overall load-bearing efficiency.

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4. Load-Carrying Capacity

Radial Load Capacity: This bearing boasts a radial load capacity that is approximately 2.5 to 3.5 times that of single-row tapered roller bearings, thereby guaranteeing consistent and stable operation even under extreme high-load working conditions.
Load Type Adaptability: It exhibits exceptional performance in handling combined radial and axial loads—with radial loads serving as the primary force—and demonstrates strong resistance to heavy loads and impact loads in harsh operating environments.

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5. Performance Characteristics

Limiting Speed: Somewhat lower limiting speed than four-row cylindrical roller bearings (structural design) but fully compatible with heavy-load operations.
Axial Load Capacity: Bidirectional axial load bearing; reliable as bidirectional thrust bearing in harsh industrial environments.

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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: Crafted specifically for rolling mill work rolls and backup rolls, this product is the perfect match for European rolling mill equipment, meeting its strict high-precision and heavy-load demands.
Other Applications: A versatile solution for heavy-duty machinery! It’s widely used in cranes, mining equipment, wind turbines, and more—all requiring top-tier resistance to high loads and impact loads.