Product Type: Double-Row Tapered Roller Bearing
Model No.: 32048/DF
1. Overview
Precisely designed exclusively for heavy-duty industrial environments, double-row tapered roller bearings own solid structural strength, prominent stiffness and stable smooth operation. Capable of bearing various combined complex loads, they are indispensable supporting components widely applied in metallurgical, mining and heavy mechanical facilities.
2. Basic Dimensions
Dimension Type
|
Value
|
Inner Diameter (d)
|
240mm
|
Outer Diameter (D)
|
360mm
|
Thickness (B)
|
76mm
|
3. Structural Features
Component Composition: Consisting of two sets of tapered roller assemblies, a double-raceway inner ring, a one-piece outer ring and a high-precision rigid cage, it features a compact and highly integrated overall structure.
Clearance Adjustment: Equipped with an internal adjustable clearance structure, it allows fine preload tuning and clearance calibration in line with actual operating demands.
Load-Bearing Advantage: This structural design greatly boosts overall rigidity. It can carry predominant radial loads and bidirectional axial loads at the same time with evenly distributed internal forces.
4. Load-Carrying Capacity
Radial Load Capacity: The bearing has enhanced radial load bearing ability in contrast to single-row tapered roller bearings, meeting the demands of long-time heavy-load continuous operation.
Load Type Adaptability: Tuned for composite load environments where radial loads are primary and bidirectional axial loads are secondary, it steadily withstands continuous heavy loads, cyclic alternating loads and mechanical shock loads.
5. Performance Characteristics
Limiting Speed: Unique tapered roller contact structure and matched friction components ensure stable performance at medium-low heavy-load speeds, with low noise and low friction power loss.
Axial Load Capacity: Unlike single-row tapered roller bearings for unidirectional axial loads, the symmetric double-row structure bears stable bidirectional axial thrust, realizes accurate shaft axial positioning and offsets axial displacement and running vibration efficiently.
Operational Stability: Optimized roller layout and raceway contact reduce running deviation and mechanical wear, suitable for long-term stable continuous operation in harsh industrial environments.
6. Material & Manufacturing
Inner & Outer Rings: Forged from premium pure bearing steel, inner and outer rings feature high hardness and stable capability to resist structural distortion.
Rolling Elements: Ultra-fine machined tapered rollers realize uniform load stress bearing and excellent top-grade wear resistance.
Cage: High-toughness durable rigid cage limits roller displacement and avoids roller collision contact.
Heat Treatment: Monolithic quenching and tempering craftsmanship enhances surface hardness and general fatigue durability, lengthens service cycles and complies with long-cycle industrial service specifications.
7. Application Fields
Primary Application: Its core installation positions include roll neck supporting points, transmission supporting components and auxiliary bearing locations of metallurgical and steel rolling production lines.
Other Applications: Adaptable to heavy industrial mechanical units with high rigidity and stable bidirectional load requirements, ranging from mining machinery and construction machinery to heavy gear reducers and industrial power transmission systems.