Product Type: Four-Row Tapered Roller Bearing

1. Overview

The 382030X2 four-row tapered roller bearing stands as a high-performance solution tailored for heavy-duty machinery. Featuring extraordinary resistance to heavy and impact loads, it is highly suitable for critical equipment in industrial sectors.

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2. Basic Dimensions

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3. Structural Features

Component Composition: With an advanced composite raceway configuration including two double-raceway inner rings, one double-raceway outer ring and two single-raceway outer rings, superior stability is achieved.
Clearance Adjustment: Precision spacers placed between inner and outer rings enable flexible clearance modification, adapting to various industrial operating scenarios.
Load-Bearing Advantage: The optimized structure provides remarkable load-bearing capacity, easily managing heavy radial loads and a certain degree of axial loads at once.

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4. Load-Carrying Capacity

Radial Load Capacity: The radial load capacity reaches 2.5–3.5 times that of single-row tapered roller bearings, delivering unwavering reliability even in extreme high-load situations.
Load Type Adaptability: It features superior adaptability to combined radial and axial loads (predominantly radial loads) and shows strong resistance to heavy loads and impacts under tough working conditions.

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5. Performance Characteristics

Limiting Speed: Because of its structure, especially the sliding contact between the rib and roller end, four-row tapered roller bearings operate with higher friction. For this reason, their limiting speed is relatively lower than other bearings of comparable size.
Axial Load Capacity: As opposed to single-row tapered roller bearings with only unidirectional axial load capacity, the four-row design is specially built to carry heavy axial loads from both directions. This ensures reliable shaft positioning and efficiently manages thrust during the rolling process. It mainly supports heavy radial loads, making it highly suitable for rolling mill applications.

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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/backup rolls, perfectly matches European rolling mills’ high-precision, heavy-load requirements.
Other Applications: Widely applicable to your cranes, mining machinery, wind turbines—all heavy-duty equipment needing excellent high-load/impact resistance.