Product Overview: The 21317 Spherical Roller Bearing
The 21317 Spherical Roller Bearing is a high-capacity, double-row, self-aligning roller bearing engineered for the most demanding industrial applications. With dimensions of 85x180x41mm, this bearing is part of our robust 21300 Series and a key component in our Spherical Roller Bearings collection. Its design features two rows of symmetrical barrel rollers and a common sphered raceway in the outer ring. This configuration allows it to accommodate significant shaft deflection and misalignment between the shaft and housing, making it indispensable in heavy-duty machinery where such conditions are common.
Built to handle very heavy radial and axial loads in both directions, the 21317 bearing ensures superior performance and extended service life. It is an ideal choice for machinery operating in harsh environments, such as those found in mining, construction, and manufacturing. As a premier supplier of industrial components, we provide top-quality bearings that meet stringent industry standards, ensuring your equipment runs reliably and efficiently.
Features of the 21317 Bearing
- Self-Aligning Capability: Automatically compensates for angular misalignment and shaft deflection, reducing stress on the bearing and extending its life.
- High Load-Carrying Capacity: The double-row roller design is optimized to support extremely high radial loads and substantial axial loads in both directions.
- Robust Construction: Manufactured from high-purity, hardened bearing steel for exceptional durability and resistance to wear and fatigue.
- Symmetrical Barrel Rollers: Ensures optimal load distribution along the roller length, minimizing stress peaks and enhancing operational life.
- Versatile Mounting Options: Typically available with a cylindrical bore, but can be mounted with adapter sleeves like the H 317 on smooth shafts.
- Optimized for Harsh Environments: Designed to perform reliably under conditions of heavy loads, shock, vibration, and potential misalignment.
Applications of 21317 Bearings
- Mining and Quarrying Equipment: Widely used in rock crushers, vibrating screens, and conveyor systems where heavy loads and misalignment are prevalent.
- Industrial Gearboxes: Provides reliable support for gears and shafts in large-scale transmission systems.
- Pulp and Paper Mills: Essential for rollers in paper machines, calendars, and other processing equipment.
- Construction Machinery: Found in heavy equipment such as excavators, cranes, and cement mixers.
- Wind Turbines: Used in the main shafts and gearboxes of wind energy generators to handle fluctuating heavy loads.
- Marine and Offshore Applications: Suitable for propulsion systems, winches, and cranes that operate in demanding marine environments.
- Steel Manufacturing: Employed in continuous casting machines, rolling mills, and other high-temperature, high-load applications.
Benefits of Using the 21317 Bearing
- Enhanced Machine Reliability: Its ability to handle misalignment and heavy loads prevents premature failures and reduces machinery downtime.
- Extended Service Life: The robust design and high-quality materials contribute to a longer operational lifespan, even under severe conditions.
- Reduced Maintenance Costs: The self-aligning nature simplifies installation and reduces the frequency of maintenance interventions.
- Improved Operational Efficiency: Low friction and high load capacity ensure smooth operation and efficient power transmission.
- Versatility: Suitable for a broad spectrum of heavy industrial machinery, making it a versatile and valuable component.
- Superior Performance: Maintains stability and performance in applications with shock loads and heavy vibration.
