Product Type: Double-Row Tapered Roller Bearing
1. Overview
Double-row tapered roller bearings are high-performance high-strength bearings made for heavy-load industrial fields. Featuring outstanding rigidity, steady working state and great overall load endurance, they adapt seamlessly to complex combined load operating environments and serve as core supporting assemblies for metallurgy, mining and heavy engineering machinery.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
190mm
|
Outer Diameter (D)
|
290mm
|
Thickness (B)
|
60mm
|
3. Structural Features
Component Composition: Structured with two sets of tapered rollers, double-row raceway inner ring, integrally formed outer ring and high-precision rigid cage, it boasts compact physical structure and perfect integrated performance.
Clearance Adjustment: With independent adjustable inner clearance design, it can complete accurate preload arrangement and clearance management in accordance with actual service conditions.
Load-Bearing Advantage: Improved overall rigidity is achieved via double-row symmetric structure, making it stable to carry heavy radial loads and two-way axial loads while keeping internal stress evenly allocated.
4. Load-Carrying Capacity
Radial Load Capacity: It has better radial load capacity than single-row tapered roller bearings, ideal for long-term heavy load operation.
Load Type Adaptability: It adapts to combined loads mainly consisting of radial loads and auxiliary bidirectional axial loads, and can steadily bear heavy loads, alternating loads and mechanical impact loads continuously.
5. Performance Characteristics
Limiting Speed: Equipped with logically designed tapered roller contact construction and balanced friction matching, the bearing maintains smooth rotation at medium and low speeds under heavy loads, offering low noise output and little friction energy consumption.
Axial Load Capacity: Single-row tapered roller bearings merely bear one-way axial loads, yet the symmetric double-row design sustains reliable two-way axial thrust. It realizes precise axial fixation of shafts and removes axial shift and equipment vibration effectively during operation.
Operational Stability: Refined roller distribution and seamless raceway coordination cut down running deviation and abrasion significantly, guaranteeing consistent stable long-term service amid rigorous industrial working scenarios.
6. Material & Manufacturing
Inner & Outer Rings: Forged with high-purity bearing steel, they feature superior hardness and outstanding anti-deformation capability.
Rolling Elements: Precision-machined tapered rollers realize uniform stress distribution and remarkable wear-resistant performance.
Cage: Constructed as a high-strength rigid retainer, it effectively prevents roller displacement and collision friction.
Heat Treatment: The whole bearing undergoes integral quenching and tempering treatment to boost surface hardness, fatigue resistance and service life, fully meeting the demands of long-cycle industrial operation.
7. Application Fields
Primary Application: Mainly applied to undertake supporting work for roll necks, transmission parts and auxiliary bearings in rolling mill equipment and metallurgical production lines.
Other Applications: Adaptable to heavy-duty machinery equipment that emphasizes high rigidity and bidirectional load capacity, extensively used in mining, engineering, heavy gear transmission and industrial transmission fields.
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overseas@esgbearing.com
+86-13670502706