Product Type:Four-Row Tapered Roller Bearing

1. Overview

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2. Basic Dimensions

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3. Structural Features

The assembly consists of two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings. This arrangement incorporates spacers between the rings to facilitate precise clearance control. As a result of this optimized structure, the bearing can sustain substantial radial loads while also managing certain axial loads.

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4. Load-Carrying Capacity

Radial Load Capacity: 2.5-3.5x the radial capacity of single-row tapered roller bearings. Complies with high-precision industrial standards.
Load Type Adaptability: For combined loads (radial primary). Excellent heavy-load & impact-load resistance.

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5. Performance Characteristics

Limiting Speed: The structural design prioritizes load capacity over speed, resulting in a lower limiting speed than four-row cylindrical roller bearings, yet ensuring full suitability for heavy-load operations.
Axial Load Capacity: A key design feature is its bidirectional axial load capacity, enabling it to perform reliably as a thrust bearing in harsh 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:

Work rolls and backup rolls (Rolling Mills)

Other Applications:

Heavy-duty machinery requiring high load and impact resistance:

Cranes

Mining Machinery

Wind Turbines