Product Type: Four-Row Tapered Roller Bearing

1. Overview

Exclusively designed for heavy-duty machinery, the 3819/600 four-row tapered roller bearing is a high-performance component. Its superior ability to withstand both heavy and impact loads makes it a perfect candidate for critical industrial equipment.

---

2. Basic Dimensions

---

3. Structural Features

Component Composition: Featuring an advanced composite raceway structure (two double-raceway inner rings + one double-raceway outer ring + two single-raceway outer rings) for enhanced stability.
Clearance Adjustment: Built-in precision spacers between the inner and outer rings allow adjustable clearance, adapting easily to various working conditions.
Load-Bearing Advantage: With structurally optimized design, the bearing provides exceptional load capacity — readily handling large radial loads and certain axial loads at once.

---

4. Load-Carrying Capacity

Radial Load Capacity: Boasting a radial load capacity 2.5–3.5 times that of single-row tapered roller bearings, it ensures stable and reliable operation in extreme heavy-load situations.
Load Type Adaptability: It demonstrates excellent resistance to heavy loads and impacts under combined radial and axial loads with radial loads as the primary part.

---

5. Performance Characteristics

Limiting Speed: Due to the sliding contact inherent between the rib and roller end face, four-row tapered roller bearings exhibit greater friction during operation. Hence, their limiting speed is comparatively lower than that of other bearings of equal size.
Axial Load Capacity: Single-row tapered roller bearings are limited to resisting axial loads in a single direction, but four-row tapered roller bearings are designed to handle heavy axial loads from both directions. This bidirectional function allows precise axial location and effective management of rolling thrust. It is highly suitable for complex combined load environments such as rolling mills.

---

6. Material & Manufacturing

Heat Treatment: Special heat treatment process applied to enhance hardness, wear resistance, and fatigue life.

---

7. Application Fields

Primary Application: Designed for work rolls and backup rolls in rolling mills, it is highly adaptable to the tough operating environment of the local rolling sector.
Other Applications: Widely used in heavy-duty mechanical equipment like cranes, mining machinery and wind turbines, it can effectively withstand high loads and impact loads in complex scenarios.