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The 21309 EK 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 28551 lbf and operates smoothly at speeds reaching 8500 RPM.
Its open design allows for easy lubrication, while the steel cage ensures durability. The bearing performs reliably in temperatures ranging from -30°C to 200°C.
This model is interchangeable with SKF bearings, making it a practical choice for replacements. Suitable for heavy-duty applications like industrial gearboxes or mining equipment where combined loads are common.
Weighing 0.97kg, it offers a robust yet manageable size. Compliant with RoHS and REACH standards for safe usage.
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Why Choose 21309 EK Bearing for Precision Tasks?
21309 EK Bearing features a double-row spherical roller design, ideal for handling combined loads with precision.
Its chrome steel construction ensures durability and resistance to wear in demanding conditions.
The tapered bore design of 21309 EK Bearing allows for secure mounting, enhancing stability during operation.
With a dynamic radial load capacity of 29 lbf, it performs reliably under heavy loads.
21309 EK Bearing operates smoothly at speeds up to 8,500 rpm, making it suitable for high-speed applications.
Its wide temperature range of -30° to 200°C ensures performance in various environments.
The lubrication groove and hole in 21309 EK Bearing facilitate easy maintenance, extending its service life.
Its standard radial clearance (CN) provides consistent performance across different applications.
Common Applications of 21309 EK Bearing
21309 EK Bearing is widely used in industrial equipment like heavy-duty gearboxes and conveyor systems, where its double-row spherical design handles combined loads effectively. The open seal type simplifies lubrication, ensuring smooth operation in demanding environments.
In automotive applications, 21309 EK Bearing supports components such as truck axles and drivetrains, thanks to its high radial load capacity. The tapered bore design also makes installation straightforward for maintenance teams.
For automation systems, 21309 EK Bearing’s steel cage and chrome steel rollers provide durability in robotic arms and assembly lines. Its temperature range of -30° to 200°C ensures reliability in varying operating conditions.
Where Is 21309 EK Bearing Used?
You’ll often find 21309 EK Bearing in mining equipment, where its spherical rollers accommodate misalignment and heavy loads. The lubrication groove design helps extend service life in dusty or high-wear settings.
In wind turbines, 21309 EK Bearing’s dynamic radial load capacity makes it suitable for rotor shafts. The metric sizing ensures compatibility with international machinery standards.
Built for Heavy-Duty Use: 21309 EK Bearing
21309 EK Bearing excels in construction machinery like cranes and excavators, handling shock loads with ease. The chrome steel construction resists wear, even in abrasive environments.
For paper mills, 21309 EK Bearing’s high-speed capability (up to 8500 rpm) keeps production lines running smoothly. The CN radial clearance offers a balance between precision and thermal expansion tolerance.
Automotive vs Aerospace: Applications of 21309 EK Bearing
In automotive settings, 21309 EK Bearing is common in commercial vehicle transmissions, where its taper bore ensures secure fitting. The steel cage withstands vibration better than polymer alternatives.
For aerospace ground equipment, 21309 EK Bearing’s wide temperature range suits outdoor service vehicles. Its 100mm OD fits standard housings used in airport tow tractors and loading systems.
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