Product Overview: The 21309 Spherical Roller Bearing
The 21309 Spherical Roller Bearing is a robust and highly reliable component from our extensive 21300 Series Spherical Roller Bearings collection. Engineered to accommodate very heavy radial loads and moderate axial loads in both directions, this bearing is also uniquely designed to compensate for angular misalignment between the shaft and the housing. With dimensions of 45mm bore diameter, 100mm outer diameter, and 36mm thickness, the 21309 bearing is a cornerstone for critical industrial applications where high performance and durability are paramount.
Its unique design features two rows of symmetrical rollers and a common spherical outer ring raceway, allowing the bearing to operate effectively even when the shaft is misaligned relative to the housing. This self-aligning capability makes the 21309 bearing an indispensable choice in challenging environments where precision mounting is difficult or where shaft deflection under load is anticipated. We are committed to supplying high-quality industrial bearings that meet rigorous industry standards, ensuring longevity and efficient operation for your machinery. Explore our comprehensive selection of spherical roller bearings to find the optimal solution for your industrial needs.
Key Features of the 21309 Spherical Roller Bearing
- Exceptional Load Capacity: Designed with two rows of rollers, it provides superior radial load capacity and significant axial load capacity in both directions.
- Automatic Self-Alignment: Compensates for static and dynamic angular misalignment, reducing stress on other components and extending bearing life.
- Robust Construction: Manufactured from high-grade bearing steel for excellent wear resistance and long-term reliability in demanding conditions.
- High Operating Reliability: Ensures consistent performance even under heavy loads, shock loads, and vibrations.
- Low Friction Design: Optimized internal geometry minimizes friction, reduces heat generation, and improves energy efficiency.
- Detachable Components: The inner ring, outer ring, and roller assembly can be mounted separately, simplifying installation and maintenance.
Common Applications of 21309 Bearings
- Heavy Industrial Machinery: Essential in equipment used in mining, construction, and aggregate processing where heavy loads and shock are common.
- Paper and Pulp Mills: Used in dryer sections, calenders, and press rolls where high temperatures, moisture, and heavy loads are present.
- Steel Mills: Ideal for continuous casting machines, rolling mills, and converters, handling extreme temperatures and heavy loads.
- Wind Turbines: Utilized in main shafts and gearboxes, providing reliable operation under varying wind conditions and loads.
- Marine Propulsion: Supports propeller shafts and gearboxes in demanding marine environments.
- Conveyor Systems: Supports heavy-duty conveyor belts in industries such as mining, cement, and bulk material handling.
- Industrial Pumps and Compressors: Ensures smooth operation and stability of rotating components in high-pressure applications.
- Gearboxes: Provides robust support for gears in various industrial power transmission systems.
Benefits of Using the 21309 Spherical Roller Bearing
- Extended Service Life: Its self-aligning feature and high load capacity significantly prolong the operational life of both the bearing and the machinery.
- Reduced Maintenance Needs: The robust design and ability to handle misalignment lead to fewer breakdowns and lower repair costs.
- Enhanced Machine Performance: Contributes to smoother operation and higher efficiency, even under challenging conditions.
- Versatile Application: Suitable for a wide range of heavy-duty industrial sectors, providing reliable solutions across diverse machinery.
- Improved Reliability: Offers dependable performance in environments prone to shock loads, vibrations, and misalignment.
- Cost-Effectiveness: Long lifespan and reduced need for frequent replacement result in better long-term economic value.
