Product Type: Double-Row Tapered Roller Bearing
1. Overview
Double-row tapered roller bearings are professional high-strength bearing parts suitable for heavy-duty industrial work. They have remarkable rigidity, steady operation and outstanding comprehensive load bearing performance, can adapt to various complex combined load environments, and are widely applied as core supports for metallurgical, mining and heavy machinery equipment.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
200mm
|
Outer Diameter (D)
|
309.5mm
|
Thickness (B)
|
109mm
|
3. Structural Features
Component Composition: It uses two sets of tapered rollers, double-row raceway inner ring, integral outer ring and high-precision rigid cage, featuring compact structure and good integration.
Clearance Adjustment: Adjustable internal clearance allows accurate preload and clearance control under actual working conditions.
Load-Bearing Advantage: Symmetrical double-row structure improves overall rigidity, capable of bearing heavy radial loads and bidirectional axial loads at the same time with uniform internal stress.
4. Load-Carrying Capacity
Radial Load Capacity: It features markedly higher radial load bearing capacity compared with single-row tapered roller bearings, making it a perfect choice for long-duration heavy-duty operating scenarios.
Load Type Adaptability: Optimized for compound load conditions dominated by radial loads and supplemented by bidirectional axial loads, it reliably withstands continuous heavy loads, cyclic alternating loads and mechanical impact loads.
5. Performance Characteristics
Limiting Speed: The bearing adopts a sophisticated tapered roller contact structure and calibrated friction pairing to sustain smooth rotation at medium and low heavy-load speeds, with low operating noise and limited friction consumption.
Axial Load Capacity: Contrary to single-row bearings only capable of withstanding one-way axial loads, its double-row symmetric structure bears consistent bidirectional axial thrust. It realizes precise shaft axial alignment and eliminates axial shifting and equipment operational vibration thoroughly.
Operational Stability: Fine-tuned roller layout and high-accuracy raceway collaboration greatly decrease running deflection and abrasion, ensuring prolonged uninterrupted stable service in heavy industrial working sites.
6. Material & Manufacturing
Inner & Outer Rings: Constructed from high-purity bearing steel, inner and outer rings maintain stable high hardness and strong anti-deformation capacity.
Rolling Elements: Strictly finished tapered rollers enable well-distributed stress bearing and remarkable abrasion resistance.
Cage: Rigid high-strength retainer efficiently suppresses roller offset and collision-induced friction loss.
Heat Treatment: Full bearing quenching and tempering technology is deployed to upgrade surface hardness, fatigue durability and service longevity, suitable for long-cycle heavy industrial operation.
7. Application Fields
Primary Application: Frequently installed to provide support for roll necks, transmission components and auxiliary bearing positions on rolling mill and metallurgical production machinery.
Other Applications: Ideal for various heavy-load mechanical facilities that demand great structural stiffness and dual-way load resistance, covering mining machines, engineering equipment, heavy gear reducers and industrial power transmission assemblies.
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overseas@esgbearing.com
+86-13670502706