Product Type: Double-Row Tapered Roller Bearing
1. Overview
Focused on heavy-duty industrial application scenarios, double-row tapered roller bearings feature reliable high strength, superior rigidity and stable running performance. Their excellent overall load-bearing capacity enables good adaptability to complex combined loads, making them key supporting components for metallurgy, mining and heavy mechanical installations.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
200mm
|
Outer Diameter (D)
|
310mm
|
Thickness (B)
|
70mm
|
3. Structural Features
Component Composition: The bearing is constructed with two groups of tapered rollers, double-row race inner ring, integral outer ring and high-rigidity precision cage, featuring compact layout and superior structural integration.
Clearance Adjustment: Equipped with an adjustable internal clearance structure, it enables accurate preload setting and clearance tuning to suit various working environments.
Load-Bearing Advantage: The refined symmetrical double-row structure greatly improves overall rigidity, allowing it to withstand heavy radial loads and bidirectional axial loads with evenly distributed internal stress.
4. Load-Carrying Capacity
Radial Load Capacity: The radial load endurance is substantially improved versus single-row tapered roller bearings, well suited to extended heavy-load industrial service.
Load Type Adaptability: Its structure is tailored for mixed working loads with radial force as the primary load and two-way axial force as auxiliary load, delivering stable resistance to persistent heavy loads, alternating loads and mechanical shock loads.
5. Performance Characteristics
Limiting Speed: A rational tapered roller contact framework and balanced friction pairing allow the bearing to maintain smooth running under medium-low speed heavy-load conditions, presenting quiet working performance and low friction loss.
Axial Load Capacity: Single-row variants can only undertake unidirectional axial force, while the symmetrical double-row structure withstands stable two-way axial thrust. It enables precise axial positioning of shaft parts and effectively counteracts axial displacement and vibration of operating machinery.
Operational Stability: Optimized roller configuration and exact raceway coordination lower operational deviation and wear rate substantially, providing durable stable continuous performance under severe industrial operating environments.
6. Material & Manufacturing
Inner & Outer Rings: High-purity bearing steel forms the base of inner and outer rings, offering high hardness and strong resistance to pressure deformation.
Rolling Elements: Accurately machined tapered rollers balance load stress and feature top-tier abrasion-resistant performance.
Cage: High-stiffness high-toughness cage can efficiently restrain roller deviation and impact friction between rolling elements.
Heat Treatment: Integral quenching paired with tempering treatment strengthens surface hardness and fatigue durability, extending service life to fulfill long-period industrial running requirements.
7. Application Fields
Primary Application: Mainly utilized to bear loads for roll necks, transmission parts and auxiliary bearing mounting points of steel rolling and metallurgical mechanical equipment.
Other Applications: Highly adaptable to heavy industrial machinery with strict standards for high rigidity and bidirectional load bearing performance, such as mining machinery, building construction equipment, heavy gear boxes and industrial transmission mechanisms.
+86-13670502706
overseas@esgbearing.com
+86-13670502706