Product Type:Four-Row Tapered Roller Bearing

1. Overview

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2. Basic Dimensions

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3. Structural Features

The design is architected around a core set of components: two double-raceway inner rings, a single double-raceway outer ring, and two single-raceway outer rings. Inter-ring spacers are key to enabling precise clearance calibration. This synthesis results in a structurally optimized bearing capable of managing significant radial forces in conjunction with specified axial loads.

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4. Load-Carrying Capacity

Radial Load Capacity: Addressing the need for higher load ratings, this bearing delivers a radial capacity 2.5-3.5 times greater than single-row tapered roller bearings, fully complying with high-precision industrial standards.
Load Type Adaptability: It provides a reliable solution for combined radial and axial load scenarios (radial-dominant), ensuring dependable performance under significant heavy and shock loading.

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5. Performance Characteristics

Limiting Speed: The limiting speed, while lower than that of four-row cylindrical roller bearings, is more than adequate for the heavy-load applications it is designed for.
Axial Load Capacity: It excels in harsh industrial environments, capable of sustaining axial loads from both directions, which makes it an excellent bidirectional thrust bearing.

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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 application scope primarily covers work rolls and backup rolls in rolling mills.
Other Applications: Additionally, it is suitable for heavy-duty mechanical equipment such as cranes, mining machinery, and wind turbines, which necessitate high load-bearing and impact-load resistance.