Product Type: Double-Row Tapered Roller Bearing
Model No.: 352948X2-1
1. Overview
Engineered only for harsh heavy industry operating scenarios, double-row tapered roller bearings adopt solid structural layout, great stiffness and reliable stable running. With outstanding integrated load bearing capability, they match multiple complex load working environments and serve as key supporting fittings for metallurgical, mining and heavy industrial machinery units.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
240mm
|
Outer Diameter (D)
|
320mm
|
Thickness (B)
|
48mm
|
3. Structural Features
Component Composition: Two sets of tapered rollers are matched with double-row race inner ring, one-piece outer ring and high-stiffness precision cage, forming a bearing with compact layout and high structural integration.
Clearance Adjustment: Adjustable internal clearance structure guarantees accurate preload and clearance adjustment to satisfy the demands of different working environments.
Load-Bearing Advantage: Polished double-row symmetrical framework improves integral rigidity remarkably, with excellent capacity to bear heavy radial loads and two-way axial loads under evenly balanced internal force.
4. Load-Carrying Capacity
Radial Load Capacity: Compared with single-row tapered roller bearings, it delivers outstanding radial load bearing capability to meet the demands of prolonged heavy-load service.
Load Type Adaptability: Refined for mixed load states prioritizing radial loads and complemented by bidirectional axial loads, it handles continuous heavy loads, cyclic alternating loads and mechanical impact loads with stability.
5. Performance Characteristics
Limiting Speed: Proprietary tapered roller contact geometry paired with properly fitted friction assemblies maintains stable running performance under medium-low speed heavy-load operation, with low noise and minimal friction power loss.
Axial Load Capacity: Single-row tapered roller bearings can only resist unidirectional axial loads, while the double-row symmetric structure reliably bears bidirectional axial thrust. It achieves precise axial positioning for shafts and mitigates axial displacement and vibration generated during equipment operation.
Operational Stability: Upgraded roller distribution and optimized raceway fit suppress operational offset and mechanical abrasion efficiently, adapting to severe industrial scenarios for uninterrupted long-term stable service.
6. Material & Manufacturing
Inner & Outer Rings: Top-grade pure bearing steel serves as core raw material, providing high hardness and steady anti-deformation capacity for ring parts.
Rolling Elements: Meticulously crafted tapered rollers realize uniform stress bearing and premium wear-resistant features.
Cage: Solid high-strength rigid cage effectively limits roller movement displacement and collision contact.
Heat Treatment: We deploy monolithic quenching and tempering processing to elevate surface hardness and overall fatigue endurance, prolong service life and comply with long-cycle industrial usage standards.
7. Application Fields
Primary Application: Frequently utilized to offer load support for roll necks, transmission fittings and auxiliary bearing spots of steel rolling mills and metallurgical mechanical units.
Other Applications: Designed for diverse heavy-load mechanical devices with high rigidity and dual-direction load bearing demands, such as mining machinery, construction equipment, heavy-duty gear boxes and industrial drive mechanisms.
+86-13670502706
overseas@esgbearing.com
+86-13670502706