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: Featuring a composite structure, the bearing is constructed with two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings— a configuration that guarantees stable force distribution across all operational phases.
Clearance Adjustment: Special spacers are installed between the inner and outer rings, providing the functionality to accurately adjust the bearing clearance in accordance with the specific demands of different working conditions.
Load-Bearing Advantage: Through systematic structural optimization, the bearing exhibits the performance of simultaneously withstanding large radial loads and certain axial loads, which contributes to the enhancement of its overall load-bearing efficiency.

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4. Load-Carrying Capacity

Radial Load Capacity: 2.5–3.5x single-row tapered roller bearing radial capacity → stable operation under high-load scenarios.
Load Type Adaptability: Superior at combined radial-axial loads (radial dominant); withstands heavy/impact loads in harsh environments.

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5. Performance Characteristics

Limiting Speed: Quick note—limiting speed slightly lower than four-row cylindrical roller bearings (structure), but fully suitable for heavy-load scenarios.
Axial Load Capacity: Bears bidirectional axial loads; works 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: Specifically designed for rolling mill work rolls and backup rolls, perfectly fitting European rolling mills’ high-precision and heavy-load requirements.
Other Applications: Broadly applicable to heavy-duty equipment (cranes, mining machinery, wind turbines) requiring excellent high-load and impact load resistance.