Product Type: Four-Row Tapered Roller Bearing

1. Overview

The 380695-1 four-row tapered roller bearing is a high-performance product designed for heavy-duty machinery. Thanks to its strong ability to bear heavy and impact loads, it has become the ideal option for critical industrial equipment.

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2. Basic Dimensions

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3. Structural Features

Component Composition: Adopting an advanced composite raceway structure comprising two double‑raceway inner rings, one double‑raceway outer ring and two single‑raceway outer rings, the bearing delivers outstanding stability.
Clearance Adjustment: Precision spacers are installed between inner and outer rings to realize flexible clearance adjustment, satisfying diverse working conditions.
Load-Bearing Advantage: Optimized structure brings extraordinary load-bearing performance, easily bearing heavy radial loads and specific axial loads at the same time.

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4. Load-Carrying Capacity

Radial Load Capacity: Providing a radial load capacity 2.5–3.5 times greater than single-row tapered roller bearings, it ensures consistent and reliable performance even under extreme load conditions.
Load Type Adaptability: It exhibits excellent performance when bearing combined radial and axial loads (with radial loads as the main component) and withstands heavy loads and impacts in challenging working conditions.

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5. Performance Characteristics

Limiting Speed: Structural properties, especially the sliding contact between the rib and roller end, result in higher operational friction. Therefore, the limiting speed of four-row tapered roller bearings is relatively lower than other bearing types of the same size.
Axial Load Capacity: Whereas single-row tapered roller bearings can only manage axial loads in one direction, four-row tapered roller bearings are constructed to carry heavy bidirectional axial loads. This bidirectional ability ensures precise shaft positioning and efficiently handles thrust generated in rolling. It mainly supports heavy radial loads, ideal for applications such as rolling mills.

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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 core application is in the work rolls and backup rolls of rolling mills, fully meeting the demanding operating requirements of the rolling sector.
Other Applications: It is an ideal choice for a wide range of heavy mechanical equipment such as cranes, mining machinery and wind turbines, with outstanding capacity to resist heavy loads and impact loads in complex environments.