Product Overview: The 21312 Spherical Roller Bearing
The 21312 Spherical Roller Bearing is a high-performance component engineered to withstand severe operating conditions. With dimensions of 60x130x31mm (Bore x Outer Diameter x Thickness), this bearing is a key part of our 21300 Series and the broader Spherical Roller Bearings collection. It is specifically designed to manage very heavy radial and significant axial loads in both directions. The defining feature of the 21312 is its ability to self-align, accommodating shaft deflection and misalignment between the shaft and housing, which is critical in heavy-duty machinery.
Built for reliability and a long service life, this bearing's robust construction features two rows of symmetrical barrel rollers that share a common sphered raceway in the outer ring. This design ensures optimal performance even under extreme shock, vibration, and misalignment, making it an indispensable part for demanding industrial applications. As a leading supplier, we provide top-quality industrial parts that meet rigorous standards for performance and durability.
Key Features of the 21312 Bearing
- High Load-Carrying Capacity: Designed with two rows of rollers to handle extremely high radial and considerable axial loads in both directions.
- Self-Aligning Capability: The spherical outer ring raceway allows it to compensate for angular misalignment and shaft bending, reducing stress on the bearing.
- Robust Construction: Manufactured from high-purity, hardened bearing steel for exceptional durability, wear resistance, and long operational life.
- Optimized Roller Design: Symmetrical barrel rollers ensure optimal load distribution along the roller length, minimizing stress peaks and extending service life.
- Superior Cage Strength: Typically equipped with a strong steel or brass cage to withstand high speeds, acceleration, and vibration.
- Dimensional Stability: Precision-engineered to standard dimensions for interchangeability and reliable performance in a wide range of equipment.
Common Applications of 21312 Bearings
- Mining and Construction: Ideal for crushers, vibrating screens, conveyor systems, and heavy earth-moving equipment.
- Pulp and Paper Mills: Used in demanding positions like press sections, rollers, and drying cylinders where heavy loads and moisture are present.
- Industrial Gearboxes: Provides reliable support for gears and shafts in large-scale industrial transmissions and speed reducers.
- Wind Turbines: Essential for main shafts and gearboxes in wind energy generation systems.
- Steel Manufacturing: Employed in continuous casters, rolling mills, and other machinery exposed to extreme temperatures and loads.
- Marine and Offshore: Suitable for propulsion systems, cranes, and winches that operate in harsh environments.
- Material Handling Equipment: Critical for heavy-duty cranes, hoists, and conveyor belt pulleys.
Benefits of Using the 21312 Bearing
- Enhanced Machine Reliability: Its ability to handle misalignment and heavy loads prevents premature failures and increases machine uptime.
- Extended Service Life: The robust design and high-quality materials reduce wear and tear, leading to a longer operational lifespan.
- Reduced Maintenance Costs: By tolerating shaft deflection and misalignment, it minimizes the need for frequent adjustments and replacements.
- Improved Operational Efficiency: Low friction characteristics and superior load management contribute to smoother and more energy-efficient machinery operation.
- Versatility in Heavy Industry: Proven performance across a wide range of demanding sectors makes it a versatile solution for heavy-duty applications.
- Resilience to Shock and Vibration: The internal geometry is designed to absorb shock loads and operate reliably in high-vibration environments.
