Product Type: Double-Row Tapered Roller Bearing
1. Overview
Double-row tapered roller bearings are high-strength structural bearings optimized for heavy industrial harsh conditions. Characterized by high rigidity, smooth rotation and strong comprehensive load bearing capability, they adapt perfectly to complex compound load environments, and are core supporting components for metallurgical production, mining machinery and heavy industrial equipment.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
180mm
|
Outer Diameter (D)
|
250mm
|
Thickness (B)
|
42mm
|
3. Structural Features
Component Composition: Constructed with two groups of tapered rollers, double-row raceway inner ring, seamless integrated outer ring and high-precision solid cage, it features simplified structure and high integration performance.
Clearance Adjustment: The adjustable internal clearance structure realizes accurate preload fine-tuning and gap adjustment to meet actual practical working standards.
Load-Bearing Advantage: Improved integral rigidity comes from double-row symmetric arrangement, making it ideal for bearing heavy radial loads and two-way axial loads with uniform internal force layout.
4. Load-Carrying Capacity
Radial Load Capacity: Its radial load bearing strength is greatly improved over single-row tapered roller bearings, meeting the requirements of long-term stable heavy-load operation.
Load Type Adaptability: Designed to adapt to various compound load scenarios with primary radial loads and secondary bidirectional axial loads, it can continuously bear heavy loads, varying alternating loads and sudden mechanical impact loads.
5. Performance Characteristics
Limiting Speed: Built with mature tapered roller contact design and harmonious friction structure, it maintains excellent operating stability under medium and low speed heavy-load working modes, along with quiet running and low friction wastage.
Axial Load Capacity: It gets rid of the one-way axial load restriction of single-row tapered roller bearings, and its double-row symmetrical structure can steadily withstand bidirectional axial thrust. It guarantees accurate shaft axial positioning and weakens axial displacement and mechanical vibration in operation.
Operational Stability: Carefully optimized roller structure and perfect raceway matching greatly slow down running offset and wear degree, making it ideal for long-term stable continuous work in heavy industrial fields.
6. Material & Manufacturing
Inner & Outer Rings: High-purity bearing steel serves as core raw material, granting superior hardness and outstanding non-deformation performance.
Rolling Elements: High-precision shaped tapered rollers maintain uniform stress status and own remarkable wear resistance.
Cage: Durable high-strength retainer structure effectively avoids roller running deflection and mutual impact.
Heat Treatment: Unified quenching and tempering treatment optimizes overall quality, improves surface hardness and fatigue resistance, and fully adapts to long-term industrial continuous use.
7. Application Fields
Primary Application: Broadly adopted in roll neck supporting sections, transmission supporting parts and auxiliary bearing seats of metallurgical and steel rolling production facilities.
Other Applications: Fit for multiple heavy-duty mechanical units with strict demands for structural rigidity and bidirectional load endurance, covering mining equipment, engineering construction machinery, heavy transmission gearboxes and industrial transmission facilities.
+86-13670502706
overseas@esgbearing.com
+86-13670502706