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The 21309K is a double-row spherical roller bearing with a 45mm bore and 100mm outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 29000 lbf and runs smoothly at speeds up to 8500 RPM.
Its open design allows for easy lubrication, while the steel cage ensures durability. The bearing operates well in temperatures ranging from -30°C to 200°C.
This model is interchangeable with SKF bearings, making it a dependable choice for replacements. Suitable for heavy-duty applications like industrial gearboxes or mining equipment where combined loads are common.
Weighing just 0.98kg, it’s robust yet relatively lightweight for its size. Compliant with RoHS and REACH standards for safe use.
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Performance Features of 21309K Bearing
21309K Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 29000 lbf, ensuring reliable performance in heavy-duty applications.
The double-row spherical roller design allows for smooth operation even under misalignment conditions.
With a maximum speed of 8500 rpm, it delivers both durability and efficiency.
How Is 21309K Bearing Engineered for Reliability?
21309K Bearing features a tapered bore design (1:12) for secure mounting and precise alignment.
The steel cage maintains roller positioning, reducing friction and extending service life.
Its lubrication groove and hole ensure consistent oil distribution, enhancing performance.
Operating from -30° to 200°C, it handles a wide range of industrial environments.
Built for Durability: 21309K Bearing
21309K Bearing’s chrome steel construction resists wear, making it suitable for demanding tasks.
The spherical roller design compensates for shaft misalignment, reducing stress on components.
With a static radial load capacity of 28551 lbf, it ensures long-term reliability.
Its open design simplifies maintenance, keeping operational costs low.
Steel vs Ceramic Bearings: Strengths of 21309K Bearing
21309K Bearing uses chrome steel for both rings and rollers, balancing strength and cost-effectiveness.
The steel cage provides robust support, ensuring stable performance under heavy loads.
Its radial clearance (CN) allows for thermal expansion, preventing premature failure.
Weighing 0.98 kg, it offers a practical solution for industrial machinery.
Industrial Uses of 21309K Bearing
21309K Bearing is commonly used in heavy machinery like conveyor systems and crushers, where its double-row design handles combined loads effectively. The chrome steel construction ensures durability even in demanding industrial environments.
What Makes 21309K Bearing a Preferred Choice?
In automotive applications, 21309K Bearing supports components like gearboxes and differentials, thanks to its high radial load capacity. The tapered bore design also simplifies installation in tight spaces.
Built for Heavy-Duty Use: 21309K Bearing
For wind turbines and mining equipment, 21309K Bearing’s spherical roller design accommodates misalignment while maintaining performance. Its wide temperature range makes it suitable for extreme operating conditions.
Automotive vs Aerospace: Applications of 21309K Bearing
In automotive settings, 21309K Bearing excels in transmissions and axles due to its robust construction. For aerospace, its precision and reliability make it ideal for auxiliary systems requiring consistent performance.
Perfect Fit for Automation: 21309K Bearing
21309K Bearing is often found in robotic arms and assembly lines, where its high-speed capability and load handling are crucial. The open design allows for easy lubrication, ensuring long service life.
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