Product Overview: The 21306 Spherical Roller Bearing
The 21306 bearing is a high-performance component engineered for the most demanding industrial environments. As a key part of our 21300 Series, this Spherical Roller Bearing features a bore diameter of 30 mm, an outer diameter of 72 mm, and a thickness of 27 mm. Its primary design function is to handle very heavy radial and significant axial loads in both directions. The unique internal geometry, with two rows of symmetrical barrel rollers and a common sphered outer ring raceway, allows it to accommodate angular misalignment between the shaft and housing, making it indispensable in applications where shaft deflection or mounting errors are a concern.
As a trusted supplier of industrial parts, we provide 21306 bearings manufactured to exacting standards, ensuring reliability and a long service life. This bearing is crucial for maintaining operational efficiency in heavy machinery, reducing friction and wear under extreme conditions. Explore our full range of spherical roller bearings to find the ideal solution for your heavy-duty needs.
Key Features of the 21306 Bearing
- Superior Load Capacity: Designed with two rows of rollers to manage heavy radial loads and axial loads from either direction.
- Self-Aligning Capability: The spherical outer raceway allows the bearing to tolerate both static and dynamic misalignment, reducing stress on the shaft.
- Robust Construction: Manufactured from high-quality bearing steel for exceptional durability and resistance to wear and fatigue.
- Optimized Internal Design: Ensures low friction and minimal heat generation, contributing to a longer operational lifespan.
- High-Precision Engineering: Adheres to strict industry standards for dimensional and running accuracy, guaranteeing consistent performance.
- Versatile Mounting Options: Available with either a cylindrical or tapered bore to suit various mounting arrangements, often with adapter sleeves.
Common Applications of 21306 Bearings
- Mining and Construction: Ideal for crushers, vibrating screens, and heavy earth-moving equipment.
- Industrial Gearboxes: Provides reliable support for gears and shafts in high-torque transmissions.
- Pulp and Paper Mills: Used in conveyor rollers, press sections, and other processing machinery.
- Material Handling Systems: Essential for heavy-duty conveyors, hoists, and cranes where loads are substantial.
- Wind Turbines: Supports the main shaft and gearbox components, withstanding fluctuating loads.
- Steel Manufacturing: Employed in rolling mills and continuous casting machines under extreme temperature and load conditions.
- Marine and Offshore: Suitable for propulsion systems, rudder stocks, and deck machinery.
Benefits of Using the 21306 Bearing
- Enhanced Machine Uptime: Its ability to handle misalignment and heavy loads prevents premature failures and costly downtime.
- Reduced Maintenance Costs: The durable design and self-aligning properties lead to longer service intervals and fewer replacements.
- Improved Operational Safety: High reliability under extreme conditions contributes to a safer working environment.
- Increased Efficiency: The low-friction design minimizes energy loss, improving the overall efficiency of the machinery.
- Simplified Assembly: The tolerance for misalignment can simplify the installation process, saving time and labor.
- Long-Term Reliability: Built to last in harsh environments, providing a dependable, long-term solution for critical applications.
