Product Overview: The 21320 Spherical Roller Bearing
The 21320 Spherical Roller Bearing is a high-capacity, self-aligning bearing designed for the most demanding industrial applications. With core dimensions of 100mm Bore Diameter, 215mm Outer Diameter, and 47mm Thickness, this bearing is a key component in our 21300 Series of Spherical Roller Bearings. Its design features two rows of symmetrical barrel rollers and a common sphered raceway in the outer ring, which allows it to accommodate significant angular misalignment and shaft deflection without compromising performance.
Engineered to handle very heavy radial and axial loads in both directions, the 21320 is indispensable in machinery where shock loads and vibrations are prevalent. As a premier supplier of industrial components, we ensure our spherical roller bearings provide exceptional reliability and a long service life, reducing downtime and maintenance costs in heavy-duty environments. Explore our complete range of spherical roller bearings to find the ideal solution for your high-load machinery.
Key Features of the 21320 Bearing
- Excellent Misalignment Compensation: The spherical outer raceway allows the bearing to self-align, accommodating both static and dynamic misalignment of the shaft.
- High Load-Carrying Capacity: Designed with two rows of barrel rollers, it can support extremely high radial loads and substantial axial loads in both directions.
- Robust Construction: Manufactured from high-purity, ultra-clean bearing steel for maximum strength, durability, and wear resistance.
- Optimized Internal Design: Features a design that ensures optimal load distribution across the rollers, minimizing stress and extending operational life.
- Versatile Mounting Options: Available with either a cylindrical bore for standard press fits or a tapered bore for mounting with an adapter sleeve.
- Low-Friction Operation: The roller and raceway geometry is engineered to reduce friction and heat generation, even at high speeds.
Common Applications
- Mining and Construction: Used in crushers, vibrating screens, conveyor systems, and heavy earth-moving equipment.
- Pulp and Paper Industry: Essential for paper machine rollers, calenders, and press sections where heavy loads and misalignment are common.
- Industrial Gearboxes: Provides reliable support for gears and shafts in large-scale industrial transmissions and speed reducers.
- Wind Energy: Critical component in wind turbine main shafts and gearboxes, withstanding fluctuating loads and harsh conditions.
- 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 under severe loads and corrosive environments.
- Power Generation: Used in large fans, blowers, and pulverizers within power plants.
Benefits of Using the 21320 Bearing
- Enhanced Machine Reliability: Its ability to handle heavy loads and misalignment prevents premature failures and increases machinery uptime.
- Extended Service Life: The robust design and superior load distribution reduce wear and fatigue, leading to a longer bearing lifespan.
- Reduced Maintenance Costs: High reliability and durability mean less frequent need for replacements and repairs.
- Improved Performance in Harsh Environments: Maintains operational integrity even when subjected to shock loads, vibrations, and contamination.
- Simplified Assembly: The self-aligning feature can simplify the machine design and mounting process, as precise alignment is less critical.
- High Operational Efficiency: Low-friction characteristics contribute to reduced energy consumption and smoother operation.
