Product Type: Double-Row Tapered Roller Bearing
1. Overview
Created uniquely for heavy industry severe working conditions, double-row tapered roller bearings feature solid construction, great structural rigidity and consistent stable rotation. Capable of enduring combined heavy loads efficiently, they fit all kinds of complex load circumstances and are irreplaceable supporting parts for metallurgical, mining and heavy industrial machinery.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
200mm
|
Outer Diameter (D)
|
320mm
|
Thickness (B)
|
48.5mm
|
3. Structural Features
Component Composition: This bearing adopts two groups of tapered rollers, double-row race inner ring, integrated single-piece outer ring and high-stiffness precision retainer, delivering compact layout and excellent structural combination effect.
Clearance Adjustment: Tunable internal clearance design allows operators to adjust preload and clearance accurately according to different working environments.
Load-Bearing Advantage: Well-optimized double-row symmetrical construction heightens integral rigidity, reliably undertaking large radial loads and two-way axial loads with uniformly balanced internal force.
4. Load-Carrying Capacity
Radial Load Capacity: Single-row tapered roller bearings lag far behind this model in radial load capacity, which makes it highly suitable for long-cycle heavy-duty working conditions.
Load Type Adaptability: Built to handle mixed loads where radial force bears most pressure and two-way axial force offers auxiliary support, it reliably copes with sustained heavy loads, alternating loads and mechanical shock loads.
5. Performance Characteristics
Limiting Speed: Scientifically structured tapered roller contact geometry and rational friction pair matching enable smooth bearing rotation under medium-low speed heavy-load working states, marked by low noise generation and low friction energy consumption.
Axial Load Capacity: Single-row bearings lack bidirectional axial load capacity and only bear unidirectional axial thrust; the symmetric double-row structure solves this issue and sustains stable two-way axial force. It accurately locates shafts axially and eliminates axial shifting and vibration of industrial machinery.
Operational Stability: Optimized roller assembly layout and precise raceway coordination greatly cut running deviation and wear, ensuring long-lasting uninterrupted stable service in severe industrial operation sites.
6. Material & Manufacturing
Inner & Outer Rings: Premium pure bearing steel is selected to manufacture inner and outer rings, providing high hardness and strong resistance to load deformation.
Rolling Elements: Accurately processed tapered rollers achieve uniform stress distribution and excellent long-term abrasion resistance.
Cage: High-rigidity high-strength cage effectively avoids roller offset and the friction caused by roller collision.
Heat Treatment: Integral quenching and tempering craftsmanship optimizes surface hardness and fatigue endurance, prolonging service life for uninterrupted long-period industrial use.
7. Application Fields
Primary Application: Mostly used to support roll necks, transmission components and auxiliary bearing positions during the operation of steel rolling mills and metallurgical machinery.
Other Applications: Capable of meeting the operating needs of heavy-load mechanical devices requiring high rigidity and two-way load resistance, applicable to mining machines, construction equipment, heavy gear boxes and industrial drive mechanisms.
+86-13670502706
overseas@esgbearing.com
+86-13670502706