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The 21308 EK is a double-row spherical roller bearing with a 40mm bore and 90mm outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 24055 lbf and operates smoothly at speeds reaching 9500 RPM.
Its open design and lubrication groove (5.5mm wide) make maintenance straightforward, 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, offering a practical replacement option. Suitable for heavy-duty applications like industrial gearboxes or mining equipment where combined loads are frequent.
Weighing 0.74kg, it balances strength and manageability. Compliant with RoHS and REACH standards for safe and eco-friendly use.
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Performance Features of 21308 EK Bearing
21308 EK Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 24055 lbf, ensuring reliable performance in heavy-duty applications.
The double-row spherical roller design allows for misalignment compensation, enhancing operational stability.
With a maximum speed of 9500 rpm, it balances durability and efficiency in demanding conditions.
21308 EK Bearing operates in temperatures from -30° to 200°C, making it suitable for varied environments.
Its steel cage maintains roller alignment, reducing wear and extending service life.
Industrial Uses of 21308 EK Bearing
21308 EK Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles both radial and axial loads efficiently. The spherical roller construction helps accommodate misalignment, ensuring reliable performance in tough conditions.
In automotive applications, 21308 EK Bearing supports components like wheel hubs and drivetrains, thanks to its high load capacity and durability. The tapered bore design also simplifies installation, making it a favourite among mechanics.
For industrial fans and blowers, 21308 EK Bearing’s ability to withstand high speeds and temperatures makes it a dependable choice. The open seal design allows for easy lubrication, extending its service life in continuous operation.
Where Is 21308 EK Bearing Used?
You’ll often find 21308 EK Bearing in conveyor systems, where its robust construction handles heavy loads without faltering. The chrome steel rollers ensure smooth operation even in dusty or humid environments.
In construction equipment like cranes and excavators, 21308 EK Bearing’s combined load capacity keeps things running smoothly. The steel cage adds extra strength, making it ideal for high-impact applications.
Built for Heavy-Duty Use: 21308 EK Bearing
21308 EK Bearing excels in mining equipment, where its ability to handle shock loads and misalignment is crucial. The lubrication groove design ensures consistent performance, even in remote or harsh locations.
For agricultural machinery like tractors and harvesters, 21308 EK Bearing’s durability and ease of maintenance are key advantages. The wide temperature range also makes it suitable for seasonal use in varying climates.
Automotive vs Aerospace: Applications of 21308 EK Bearing
In automotive settings, 21308 EK Bearing is trusted for transmissions and differentials due to its high-speed capability. The metric sizing ensures compatibility with a range of vehicle designs.
For aerospace ground equipment, 21308 EK Bearing’s precision and reliability are vital. The steel cage and chrome steel rollers meet stringent performance standards, even under frequent use.
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