Product Overview: The 21307 Spherical Roller Bearing
The 21307 Spherical Roller Bearing is a high-capacity component engineered for the most demanding industrial applications. With dimensions of 35x80x21mm, this bearing belongs to our robust 21300 Series within the broader Spherical Roller Bearings category. Its defining feature is the spherical raceway in the outer ring and two rows of barrel-shaped rollers, which allows it to accommodate significant shaft misalignment and deflection. This self-aligning capability makes the 21307 indispensable in heavy-duty machinery where maintaining perfect alignment is challenging.
As a specialist supplier of industrial components, we provide 21307 bearings that meet stringent industry standards for performance and durability. This bearing is designed to handle very heavy radial loads and substantial axial loads in both directions, making it a reliable choice for operations involving shock loads and vibrations. For enhanced mounting on tapered shafts, it can be used with an H 207 adapter sleeve.
Key Features of the 21307 Bearing
- Excellent Misalignment Compensation: The internal spherical design automatically corrects for angular misalignment between the shaft and housing.
- High Load-Carrying Capacity: Engineered with two rows of rollers to support extremely high radial loads and significant axial loads.
- Robust Construction: Manufactured from high-purity, hardened bearing steel for exceptional fatigue resistance and longevity.
- Optimized for Heavy-Duty Use: Designed to perform reliably under severe conditions, including heavy shock loads and vibrations.
- Low-Friction Operation: The optimized internal geometry minimizes friction, reducing operational temperature and extending service life.
- Dimensional Stability: Precision manufacturing ensures consistent dimensions for reliable fitting and interchangeability.
Common Applications of 21307 Bearings
- Mining and Construction: Widely used in crushers, vibrating screens, and heavy earth-moving equipment.
- Pulp and Paper Mills: Essential for rollers in paper machines, calendars, and processing equipment where shaft deflection is common.
- Industrial Gearboxes: Provides durable support for gears and shafts in high-torque transmission systems.
- Wind Turbines: Used in main shafts and gearbox applications to handle immense and fluctuating loads.
- Heavy-Duty Fans and Blowers: Ensures stable operation in large industrial ventilation systems.
- Continuous Casting Machines: Reliably supports rollers in steel and metal processing plants operating under high temperatures and loads.
- Marine and Offshore Equipment: Suitable for propulsion systems and deck machinery exposed to harsh environments.
Benefits of Using the 21307 Bearing
- Enhanced Machine Uptime: Its ability to handle misalignment and heavy loads prevents premature failures, increasing operational reliability.
- Reduced Maintenance Costs: The bearing's long service life and robust design minimize the need for frequent replacements and servicing.
- Improved Performance: Supports smoother and more efficient machinery operation, even under challenging conditions.
- Versatility: A single 21307 bearing can manage combined radial and axial loads, simplifying design in many applications.
- Increased Durability: Superior shock and vibration resistance ensures longevity in punishing industrial environments.
