Product Type: Double-Row Tapered Roller Bearing
1. Overview
Engineered for harsh heavy-duty industrial scenarios, double-row tapered roller bearings are high-strength bearing units. They combine high rigidity, smooth running stability and strong comprehensive load resistance, fit well with complex combined load working environments, and act as core supporting accessories for metallurgical, mining and heavy industry mechanical facilities.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
200mm
|
Outer Diameter (D)
|
310mm
|
Thickness (B)
|
66mm
|
3. Structural Features
Component Composition: Assembled from two tapered roller assemblies, double-row race inner ring, monolithic outer ring and high-stiffness precision retainer, this bearing boasts neat layout and excellent structural integration performance.
Clearance Adjustment: Adopting tunable internal clearance design, it supports precise preload and clearance calibration for adaptation to diverse service conditions.
Load-Bearing Advantage: Scientifically optimized double-row symmetric construction elevates integral stiffness remarkably, delivering stable bearing of large radial and two-way axial loads alongside balanced internal force distribution.
4. Load-Carrying Capacity
Radial Load Capacity: Compared with single-row tapered roller bearings, this product boasts greatly upgraded radial load performance, applicable to long-term heavy-duty running work.
Load Type Adaptability: Specially engineered for combined load environments prioritizing radial loads and matched with bidirectional axial loads, it can reliably bear lasting heavy loads, variable alternating loads and mechanical collision loads.
5. Performance Characteristics
Limiting Speed: Built with logically optimized tapered roller contact structure and harmonized friction pairing, the bearing rotates smoothly under medium-low speed heavy-duty loads, featuring silent running and minimal friction energy waste.
Axial Load Capacity: Unlike single-row tapered roller bearings with only unidirectional axial load capacity, this double-row symmetric structure sustains steady bidirectional axial thrust. It accurately positions shafts along the axial direction and relieves axial shift and mechanical working vibration effectively.
Operational Stability: Improved roller arrangement and precision raceway matching control running deflection and abrasion, supporting long-cycle stable continuous service across harsh industrial application conditions.
6. Material & Manufacturing
Inner & Outer Rings: Built from industrial-grade high-purity bearing steel, the rings deliver high hardness and powerful anti-deformation performance for heavy metallurgical loads.
Rolling Elements: Precisely finished tapered rollers realize balanced stress bearing and excellent abrasion resistance under harsh rolling mill conditions.
Cage: Heavy-duty high-rigidity high-strength cage effectively prevents roller offset and impact friction in high-load operation.
Heat Treatment: Integral quenching and tempering technology improves surface hardness and fatigue durability, extending service life to satisfy long-term continuous operation of metallurgical equipment.
7. Application Fields
Primary Application: Extensively applied for supporting roll necks, transmission structures and auxiliary bearing areas within rolling mill and metallurgical industrial equipment.
Other Applications: Suitable for every type of heavy-load mechanical device needing outstanding stiffness and two-way load endurance, ranging from mining machines and construction machinery to heavy gearboxes and factory drive systems.
+86-13670502706
overseas@esgbearing.com
+86-13670502706