Product Type: Double-Row Tapered Roller Bearing
Model No.: 352948X2
1. Overview
Specially developed for heavy industrial use, double-row tapered roller bearings feature solid construction, high rigidity and stable smooth rotation. They offer powerful comprehensive load capacity to fit various complex load conditions and act as essential supporting components for metallurgical, mining and heavy machinery.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
240mm
|
Outer Diameter (D)
|
320mm
|
Thickness (B)
|
48mm
|
3. Structural Features
Component Composition: Dual tapered roller assemblies, double-row race inner ring, monolithic outer ring and high-stiffness precision cage constitute this bearing, featuring compact layout and outstanding structural integration.
Clearance Adjustment: It utilizes tunable internal clearance to realize precise preload and clearance adjustment for different heavy-duty working environments.
Load-Bearing Advantage: Reasonably optimized double-row symmetrical structure boosts integral rigidity efficiently, enduring heavy radial loads and two-way axial loads with uniformly distributed internal force.
4. Load-Carrying Capacity
Radial Load Capacity: Boasting stronger radial bearing performance than single-row tapered roller bearings, it is well suited to extended heavy-duty running scenarios.
Load Type Adaptability: Specially engineered for mixed load environments dominated by radial loads and accompanied by bidirectional axial loads, it endures sustained heavy loads, recurring alternating loads and mechanical shock loads steadily.
5. Performance Characteristics
Limiting Speed: The unique tapered roller contact design and reasonably matched friction pairs allow the bearing to operate stably under medium-low speed heavy-duty loads, featuring quiet rotation and low friction power loss.
Axial Load Capacity: Contrary to single-row tapered roller bearings limited to unidirectional axial thrust bearing, the balanced double-row symmetrical structure bears steady bidirectional axial loads. It ensures precise axial positioning of shaft assemblies and efficiently counteracts axial displacement and equipment vibration.
Operational Stability: Optimized roller distribution and precision raceway coordination reduce operational deviation and mechanical wear by a large margin, adapting to harsh industrial working conditions for long-term stable continuous running.
6. Material & Manufacturing
Inner & Outer Rings: Premium high-purity bearing steel endows inner and outer rings with elevated hardness and consistent anti-distortion capability.
Rolling Elements: Fine-finished tapered rollers disperse stress uniformly and own first-class wear-resistant performance.
Cage: Long-service high-strength rigid retainer prevents roller displacement and direct collision contact between rolling elements.
Heat Treatment: Monolithic thermal treatment combining quenching and tempering boosts surface hardness and comprehensive fatigue resistance, lengthening service lifespan and conforming to standard industrial long-cycle operation rules.
7. Application Fields
Primary Application: Massively adopted in roll neck supporting positions, transmission component supports and auxiliary bearing installation spots of steel rolling mill and metallurgical machinery.
Other Applications: Great for heavy-load mechanical apparatus requiring outstanding stiffness and dual-way load resistance, ranging from mining machines and construction machinery to heavy gear boxes and industrial drive assemblies.
+86-13670502706
overseas@esgbearing.com
+86-13670502706