Product Type: Double-Row Tapered Roller Bearing
1. Overview
Tailored solely for heavy-duty industrial service conditions, double-row tapered roller bearings adopt a sturdy structure with remarkable rigidity and stable rotary performance. Their outstanding comprehensive load capacity enables perfect adaptability to various compound load environments, making them core supporting fittings for metallurgical, mining and heavy mechanical facilities.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
200mm
|
Outer Diameter (D)
|
310mm
|
Thickness (B)
|
66mm
|
3. Structural Features
Component Composition: This bearing unit is fitted with two groups of tapered rollers, double-row race inner ring, whole-type outer ring and high-stiffness precision cage, with compact outline and outstanding structural integrity.
Clearance Adjustment: Designed with flexible adjustable internal clearance, it realizes high-precision preload and clearance modification to fit multiple working scenarios.
Load-Bearing Advantage: Optimized symmetric double-row framework boosts integral structural rigidity significantly, capable of enduring heavy radial loads and two-way axial loads with well-proportioned internal force transmission.
4. Load-Carrying Capacity
Radial Load Capacity: It outperforms single-row tapered roller bearings by a wide margin in radial load capacity, ideal for uninterrupted long-period heavy-duty applications.
Load Type Adaptability: Designed to fit integrated load working modes centered on radial force and assisted by two-way axial force, it reliably sustains heavy long-term loads, alternating loads and sudden mechanical impact loads.
5. Performance Characteristics
Limiting Speed: With scientific tapered roller contact structure and rational friction pairing, the bearing operates smoothly at medium-low heavy-load speeds, running quietly with low friction consumption.
Axial Load Capacity: Single-row bearings only support one-way axial force, while the double-row symmetrical structure bears stable bidirectional axial thrust. It realizes precise shaft axial positioning and eliminates axial shift and machine operating vibration.
Operational Stability: Improved roller arrangement and precise raceway cooperation reduce running deflection and wear, ensuring long-lasting stable continuous service under severe industrial conditions.
6. Material & Manufacturing
Inner & Outer Rings: High-purity bearing steel is adopted for ring production, bringing high hardness and robust deformation resistance to withstand heavy loads.
Rolling Elements: Carefully finished tapered rollers guarantee uniform stress bearing and outstanding resistance to surface abrasion.
Cage: High-strength rigid cage with superior stiffness efficiently stops roller displacement and collision friction.
Heat Treatment: The whole bearing receives integrated quenching and tempering processing to lift surface hardness, fatigue durability and service life, adapting to all kinds of long-period industrial working environments.
7. Application Fields
Primary Application: Regularly fitted to support roll neck sections, transmission parts and auxiliary bearing spots of all rolling mill stands and metallurgical processing machinery.
Other Applications: Designed to work with heavy-load mechanical apparatus that requires superior stiffness and bidirectional load bearing capability, including mining machines, construction devices, heavy transmission gearboxes and industrial power delivery systems.
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overseas@esgbearing.com
+86-13670502706