Product Type: Double-Row Tapered Roller Bearing
1. Overview
As high-strength structural bearing products, double-row tapered roller bearings are developed targeting heavy-duty industrial working scenarios. Equipped with high rigidity, stable rotating effect and superior comprehensive bearing capacity, they adapt to various complex combined load environments, and are indispensable core supporting parts for metallurgical, mining and heavy mechanical equipment.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
170mm
|
Outer Diameter (D)
|
280mm
|
Thickness (B)
|
66mm
|
3. Structural Features
Component Composition: Equipped with twin tapered roller sets, double-row track inner ring, integral molded outer ring and high-rigidity precision retainer, it presents compact structure and excellent integrated performance.
Clearance Adjustment: With adjustable internal clearance design, operators can carry out precise preload setting and clearance control to fit varied industrial working conditions.
Load-Bearing Advantage: Double-row symmetric structural design boosts overall bearing hardness, which undertakes massive radial loads and bidirectional axial loads steadily with evenly distributed internal pressure.
4. Load-Carrying Capacity
Radial Load Capacity: Compared with single-row tapered roller bearings, it features enhanced radial load performance and is fully applicable to long-duration heavy-load operation.
Load Type Adaptability: Tailored for mixed load working states focusing on radial loads and matched with bidirectional axial loads, it maintains stable bearing capacity against heavy loads, cyclic alternating loads and mechanical impact loads.
5. Performance Characteristics
Limiting Speed: Properly arranged tapered roller contact form and standard friction collocation help the bearing run steadily under medium-low speed heavy loads, achieving low noise level and little friction loss.
Axial Load Capacity: Single-row tapered roller bearings are only applicable to unidirectional axial loads, whereas this double-row symmetric structure provides stable bidirectional axial bearing capacity. It completes precise axial positioning for shaft assemblies and balances operational axial displacement and vibration.
Operational Stability: Rational roller layout and seamless raceway fitting effectively avoid running deflection and abrasion, meeting the requirement of long-term continuous stable operation under various harsh industrial conditions.
6. Material & Manufacturing
Inner & Outer Rings: Selected high-grade pure bearing steel endows inner and outer rings with high hardness and excellent structural stability against deformation.
Rolling Elements: Elaborately processed tapered rollers achieve uniform force transmission and long-lasting abrasion resistance.
Cage: Sturdy high-strength rigid cage keeps rollers in fixed position and eliminates roller collision effectively.
Heat Treatment: Complete quenching and tempering heat treatment enhances overall mechanical performance, lifting surface hardness and fatigue resistance to reach industrial long-term service criteria.
7. Application Fields
Primary Application: Mainly used as supporting bearings at roll necks, transmission structures and auxiliary bearing locations in rolling mill and metallurgical industrial fields.
Other Applications: Applicable to heavy industrial mechanical equipment needing outstanding rigidity and stable bidirectional load performance, ranging from mining machinery, construction machinery to heavy gear reducers and industrial power transmission systems.
+86-13670502706
overseas@esgbearing.com
+86-13670502706