Product Type:Four-Row Tapered Roller Bearing

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1. Overview

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2. Basic Dimensions

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3. Structural Features

Component Composition: The bearing features a standardized structure consisting of two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings, complying with industrial precision requirements.
Clearance Adjustment: Precision-machined spacers are installed between the inner and outer rings to realize accurate clearance adjustment, ensuring optimal operating performance under various working conditions.
Load-Bearing Advantage: Structural optimization enables the bearing to simultaneously withstand large radial loads and certain axial loads, meeting the high-load requirements of heavy-duty machinery in strict European industrial standards.

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4. Load-Carrying Capacity

Radial Load Capacity: Its radial load-bearing capacity is about 2.5-3.5 times that of single-row tapered roller bearings, satisfying high-precision industrial load demands.
Load Type Adaptability: Specifically designed to handle combined radial and axial loads (with radial loads as the main component), it exhibits excellent resistance to heavy and impact loads.

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5. Performance Characteristics

Limiting Speed: Due to structural design constraints, the limiting speed is relatively lower than that of four-row cylindrical roller bearings. This is a trade-off for the enhanced load-carrying capacity.
Axial Load Capacity: It can accommodate axial loads in both directions and can be used as a bidirectional thrust bearing to handle axial loads from either direction.

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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 engineered for the work rolls and backup rolls of rolling mills, it perfectly meets the high-precision and heavy-load demands of European rolling mill equipment.
Other Applications: Also widely used in heavy-duty machinery such as cranes, mining equipment, and wind turbines, where exceptional resistance to high and impact loads is required.