Product Type: Four-Row Tapered Roller Bearing

1. Overview

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2. Basic Dimensions

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3. Structural Features

Component Composition: Designed for industrial machinery, it comprises two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings.
Clearance Adjustment: Precise clearance tuning is achievable through spacers between inner and outer rings, adapting to different working conditions.
Load-Bearing Advantage: Structural optimization enables simultaneous bearing of large radial loads and certain axial loads, meeting industrial equipment demands.

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4. Load-Carrying Capacity

Radial Load Capacity: For industrial equipment requiring high load resistance, its radial load capacity is 2.5–3.5 times stronger than single-row tapered roller bearings, ensuring reliable performance under high-load conditions.
Load Type Adaptability: Tailored for harsh industrial environments, it works well with combined radial-axial loads (radial main) and withstands heavy/impact loads.

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5. Performance Characteristics

Limiting Speed: While its limiting speed is somewhat lower than four-row cylindrical roller bearings (due to structural design), it is perfectly tailored for heavy-load operating scenarios.
Axial Load Capacity: Its ability to bear axial loads from both sides makes it a reliable bidirectional thrust bearing, even in harsh industrial environments.

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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: What makes it stand out is its specific design for rolling mill work rolls and backup rolls—perfectly meeting the high-precision and heavy-load demands that European rolling mill equipment imposes.
Other Applications: It is widely suitable for heavy-duty machinery like cranes, mining equipment, and wind turbines, thanks to its excellent resistance to high loads and impact loads that these devices require.