Product Type: Four-Row Tapered Roller Bearing

1. Overview

Specially developed for heavy-duty machinery, the 380692-2 four-row tapered roller bearing delivers high-performance operation. Its excellent ability to support heavy and impact loads ensures it is an ideal option for key industrial equipment.

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2. Basic Dimensions

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3. Structural Features

Component Composition: The sophisticated composite raceway system (two double-raceway inner rings, one double-raceway outer ring, two single-raceway outer rings) ensures excellent operational stability.
Clearance Adjustment: Built-in high-precision spacers between inner and outer rings support flexible clearance adjustment, suitable for diverse application conditions.
Load-Bearing Advantage: Optimized structural design offers superior load capacity, efficiently handling large radial loads and specific axial loads simultaneously.

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4. Load-Carrying Capacity

Radial Load Capacity: With 2.5–3.5 times the radial load capacity of single-row tapered roller bearings, it ensures stable and reliable operation even under maximum load conditions.
Load Type Adaptability: It performs excellently when subjected to combined radial and axial loads, with radial loads dominating, and endures heavy loads and impact forces in demanding industrial environments.

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5. Performance Characteristics

Limiting Speed: Structural design involving sliding contact between the rib and roller end raises operational friction, leading to a comparatively lower limiting speed than four-row cylindrical roller bearings.
Axial Load Capacity: Single-row tapered roller bearings can only resist axial loads in a single direction, but the four-row structure is designed to support heavy bidirectional axial loads. This bidirectional performance ensures accurate axial positioning and efficiently absorbs rolling thrust. It primarily undertakes heavy radial loads while handling dual-direction thrust, perfect for complex load conditions.

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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: In comparison with conventional rolling mill components, this product’s exclusive design for work and backup rolls enables it to perfectly match the high-precision and heavy-load standards that define European rolling mill technology.
Other Applications: Unlike components with limited load tolerance, it demonstrates outstanding resistance to both high static loads and dynamic impact loads, making it a preferred choice for heavy-duty equipment like cranes, mining machinery, and wind turbines.