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: It consists of two inner rings (double raceway), one outer ring (double raceway), and two outer rings (single raceway).
Clearance Adjustment: Radial and axial clearance can be precisely tuned via spacers between the inner and outer rings.
Load-Bearing Advantage: Structural optimization grants the ability to concurrently sustain heavy radial loads and specific axial loads.

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4. Load-Carrying Capacity

Radial Load Capacity: A key advantage lies in its radial load capacity—2.5–3.5 times stronger than single-row tapered roller bearings—ensuring reliability even under high-load stress.
Load Type Adaptability: Its core strength is adapting to combined radial-axial loads (radial main force) and withstanding heavy/impact loads in harsh working environments.

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5. Performance Characteristics

Limiting Speed: Owing to its structural design, the limiting speed is moderately lower than that of four-row cylindrical roller bearings. However, it is fully compatible with heavy-load operating scenarios.
Axial Load Capacity: It is capable of bearing axial loads from both directions and functions effectively as a bidirectional thrust bearing in severe 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: Specifically designed for the work rolls and backup rolls in rolling mill systems, this product perfectly matches the stringent high-precision and heavy-load requirements of European-standard rolling mill equipment.
Other Applications: It finds extensive application in various heavy-duty mechanical equipment such as cranes, mining machinery, and wind turbines—equipment that requires superior resistance to high loads and impact loads.