Product Overview: The 21308 Spherical Roller Bearing
The 21308 Spherical Roller Bearing is a high-performance component engineered to withstand the most demanding industrial environments. With dimensions of 40x90x33mm, this bearing is a key part of our 21300 Series and the broader Spherical Roller Bearings collection. Its design features two rows of symmetrical barrel-shaped rollers and a common sphered outer ring raceway, which allows it to accommodate significant shaft misalignment and deflection. This self-aligning capability is crucial for applications where maintaining perfect alignment is challenging.
As a premier supplier of industrial components, we ensure our 21308 bearings are manufactured to rigorous industry standards. They are designed to handle very heavy radial loads and substantial axial loads in both directions, making them exceptionally reliable for heavy-duty machinery. Their robust construction guarantees a long service life, even under conditions of high shock loads and vibration.
Key Features of the 21308 Bearing
- Superior Load Capacity: Engineered to support very high radial and heavy axial loads in both directions.
- Self-Aligning Design: Automatically compensates for angular misalignment between the shaft and housing, reducing stress on the bearing and extending machine life.
- Robust Construction: Manufactured from high-purity, hardened bearing steel for exceptional durability and resistance to wear and fatigue.
- Two-Row Roller Design: Features two rows of symmetrical barrel rollers for optimal load distribution and performance.
- Optimized for Heavy Industry: Designed to perform reliably under conditions of heavy shock loads, vibration, and contamination.
- Dimensional Stability: Heat-treated to ensure stable operation across a wide range of temperatures.
Common Applications
- Mining and Construction: Used in crushers, vibrating screens, conveyor systems, and heavy earth-moving equipment.
- Pulp and Paper Mills: Ideal for paper machines, calendar rolls, and processing equipment where heavy loads and moisture are present.
- Industrial Gearboxes: Provides reliable support for gears and shafts in large-scale industrial transmissions.
- Wind Turbines: Essential for the main shafts and gearboxes of wind energy systems, handling fluctuating and heavy loads.
- Metals Industry: Employed in continuous casting machines, rolling mills, and other steel processing equipment.
- Marine and Offshore: Suitable for propulsion systems, cranes, and winches that operate in harsh marine environments.
- Large Fans and Blowers: Supports heavy rotating assemblies while accommodating potential shaft deflection.
Benefits of Using the 21308 Bearing
- Enhanced Machine Uptime: The bearing's ability to handle misalignment and heavy loads reduces the risk of premature failure and costly downtime.
- Extended Service Life: High-quality materials and robust design lead to a longer operational lifespan, even in severe conditions.
- Reduced Maintenance Costs: Its tolerance for misalignment and durable nature minimizes the need for frequent inspections, repairs, and replacements.
- Improved Operational Reliability: Provides consistent and stable performance, ensuring the machinery it's part of operates smoothly and efficiently.
- Versatile Performance: Capable of operating effectively in a wide array of heavy-duty industrial applications, making it a versatile solution.
