Product Type: Double-Row Tapered Roller Bearing
Model No.: 352944X2
1. Overview
Custom-built for heavy industry harsh operating conditions, double-row tapered roller bearings adopt solid structural design, high rigidity and reliable smooth rotation. Possessing remarkable comprehensive load capacity, they accommodate multiple complex load environments and are indispensable supporting fittings in metallurgical, mining and heavy machinery systems.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
220mm
|
Outer Diameter (D)
|
300mm
|
Thickness (B)
|
48mm
|
3. Structural Features
Component Composition: This heavy-duty bearing is composed of two sets of tapered rollers, double-row race inner ring, one-piece outer ring and high-stiffness precision cage, with compact layout and high structural integration suitable for rolling mills.
Clearance Adjustment: With adjustable internal clearance design, it can complete precise preload and clearance adjustment to adapt to complex metallurgical working environments.
Load-Bearing Advantage: Optimized double-row symmetrical structure greatly enhances integral rigidity, stably undertaking large radial loads and two-way axial loads with balanced internal force distribution under heavy loads.
4. Load-Carrying Capacity
Radial Load Capacity: It has greatly improved radial load capacity compared to single-row tapered roller bearings, ideal for long-term heavy-duty use.
Load Type Adaptability: It is well designed for composite loads mainly consisting of radial loads and supplementary bidirectional axial loads, and can reliably bear continuous heavy loads, alternating loads and mechanical shock loads.
5. Performance Characteristics
Limiting Speed: Thanks to proprietary tapered roller contact design and perfectly paired friction parts, it runs smoothly at medium and low heavy-load speeds, generating low noise and little power loss from friction.
Axial Load Capacity: Single-row bearings can merely bear one-way axial force, while the balanced double-row symmetrical structure delivers reliable bidirectional axial load capacity. It locks shafts in accurate axial positions and efficiently eliminates axial displacement and equipment running vibration.
Operational Stability: Elaborately arranged rollers and refined raceway fit minimize operational offset and mechanical wear, making it suitable for sustained stable service amid tough industrial working scenarios.
6. Material & Manufacturing
Inner & Outer Rings: Premium pure bearing steel guarantees outstanding hardness and consistent deformation resistance for inner and outer rings.
Rolling Elements: Carefully polished tapered rollers enable uniform stress bearing and first-class wear-proof performance.
Cage: Long-lasting high-rigidity cage structure effectively avoids roller offset and collision friction.
Heat Treatment: Monolithic quenching paired with tempering treatment boosts surface hardness and integral fatigue resistance, lengthening service cycles and conforming to industrial long-duration usage criteria.
7. Application Fields
Primary Application: Extensively fitted as supporting components for roll necks, transmission parts and auxiliary bearing seats on full-series steel rolling mills and metallurgical mechanical devices.
Other Applications: Highly qualified for various heavy-duty mechanical units with high stiffness and dual-way load bearing requirements, including mining machinery, construction equipment, heavy gear boxes and industrial power drive systems.
+86-13670502706
overseas@esgbearing.com
+86-13670502706