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The 21311 is a double-row spherical roller bearing with a 55mm bore and 120mm outer diameter, crafted from tough chrome steel. It manages combined loads up to 35745 lbf and operates smoothly at speeds up to 7500 RPM.
Its open design and lubrication groove 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 dependable replacement option. Suitable for heavy-duty applications like industrial gearboxes or mining equipment where high radial loads are present.
Weighing 1.7kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe industrial use.
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How Is 21311 Bearing Engineered for Reliability?
21311 Bearing features a double-row spherical roller design, ideal for handling combined loads with ease.
Its chrome steel construction ensures durability, even under high dynamic radial loads up to 35,745 lbf.
The open seal type allows for easy lubrication, maintaining smooth operation in demanding conditions.
With a temperature range of -30° to 200°C, it performs reliably in varied environments.
The steel cage keeps rollers aligned, reducing friction and extending the bearing’s service life.
Its 7,500 rpm max speed makes it suitable for high-performance applications.
Industrial Uses of 21311 Bearing
21311 Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row spherical design handles misalignment and heavy radial loads.
The chrome steel construction ensures durability in harsh environments, making it suitable for mining and construction equipment.
What Makes 21311 Bearing a Preferred Choice?
In automotive applications, 21311 Bearing supports components like differential systems, providing reliable performance under combined loads.
Its metric sizing and high-speed capability make it a versatile option for various vehicle models.
Built for Heavy-Duty Use: 21311 Bearing
For industrial fans and pumps, 21311 Bearing’s spherical rollers reduce friction, ensuring smooth operation even at high speeds.
The open design allows for easy lubrication, extending the bearing’s service life in demanding conditions.
Automotive vs Aerospace: Applications of 21311 Bearing
In automotive systems, 21311 Bearing excels in transmissions and axles, offering stability under heavy loads.
While not typically used in aerospace, its robust design makes it ideal for ground support equipment and heavy-duty vehicles.
Key Fields for 21311 Bearing
21311 Bearing is a reliable choice for paper mills and steel plants, where it withstands high temperatures and continuous operation.
The steel cage and chrome steel rollers provide excellent resistance to wear, ensuring long-term performance in industrial settings.
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