Product Type: Double-Row Tapered Roller Bearing
Model No.: 352948
1. Overview
Developed targeted at heavy industry rigorous working conditions, double-row tapered roller bearings come with firm structure, excellent structural rigidity and smooth rotational stability. Powerful comprehensive load resistance allows them to adapt to all kinds of compound load conditions, functioning as essential support assemblies for metallurgy, mining and heavy mechanical installations.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
240mm
|
Outer Diameter (D)
|
320mm
|
Thickness (B)
|
51mm
|
3. Structural Features
Component Composition: Manufactured with two tapered roller groups, double-row race inner ring, seamless one-piece outer ring and high-rigidity precision cage, this bearing features compact layout and superior structural integration.
Clearance Adjustment: The bearing’s adjustable internal clearance design supports precise preload and clearance modification for various harsh working environments.
Load-Bearing Advantage: Optimized double-row symmetric layout enhances integral rigidity effectively, capable of sustaining large radial loads and bidirectional axial loads with well-proportioned internal force distribution.
4. Load-Carrying Capacity
Radial Load Capacity: It achieves remarkable radial load superiority over single-row tapered roller bearings, ideal for long-running heavy-load working applications.
Load Type Adaptability: Built for compound load environments centered on radial loads with supporting bidirectional axial loads, it reliably sustains persistent heavy loads, cyclic alternating loads and mechanical shock loads.
5. Performance Characteristics
Limiting Speed: Equipped with specially constructed tapered roller contact surfaces and harmonized friction parts, this bearing stays stable under medium-low speed heavy-duty loads, delivering quiet operation and little friction energy loss.
Axial Load Capacity: Unlike single-row tapered roller bearings restricted to one-way axial load bearing, the symmetric double-row construction holds stable bidirectional axial thrust. It locks shaft systems in precise axial positions and offsets axial shift and running vibration efficiently.
Operational Stability: Rational roller layout and high-quality raceway contact greatly reduce running deflection and mechanical wear, satisfying the demand for long-term steady continuous operation in harsh industrial sites.
6. Material & Manufacturing
Inner & Outer Rings: Industrial premium high-purity bearing steel is used for ring forging, delivering high hardness and stable anti-deformation capability under heavy metallurgical loads.
Rolling Elements: High-precision machined tapered rollers maintain uniform stress bearing and top-grade wear resistance for rolling mill harsh working conditions.
Cage: Heavy-duty durable high-strength rigid cage efficiently restricts roller displacement and collision contact under high-load operation.
Heat Treatment: Monolithic quenching and tempering thermal process upgrades surface hardness and overall fatigue resistance, extends service life and satisfies long-cycle continuous metallurgical industrial usage norms.
7. Application Fields
Primary Application: Primarily installed at roll neck support positions, transmission support frames and auxiliary bearing seats of steel rolling and metallurgical production equipment.
Other Applications: Suitable for heavy industrial machinery that requires outstanding rigidity and reliable bidirectional load bearing capacity, such as mining equipment, construction machinery, heavy-duty gear reducers and industrial power transmission components.
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overseas@esgbearing.com
+86-13670502706