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The 21311 EK is a double-row spherical roller bearing with a 55mm bore and 120mm outer diameter, crafted from sturdy 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 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 present.
Weighing 1.65kg, it balances strength and practicality. Compliant with RoHS and REACH standards for safe usage.
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How Is 21311 EK Bearing Engineered for Reliability?
21311 EK 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 tapered bore design enhances alignment, reducing stress and prolonging service life.
With a maximum speed of 7,500 rpm, it delivers consistent performance in demanding conditions.
21311 EK Bearing operates efficiently in temperatures ranging from -30° to 200°C.
Its steel cage maintains roller alignment, ensuring smooth operation and minimal wear.
Industrial Uses of 21311 EK Bearing
21311 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, making it reliable in rough operating conditions.
What Makes 21311 EK Bearing a Preferred Choice?
In mining equipment, 21311 EK Bearing stands out for its ability to withstand high dynamic loads and harsh environments.
The chrome steel rollers and steel cage ensure durability even under continuous stress.
Built for Heavy-Duty Use: 21311 EK Bearing
For conveyor systems, 21311 EK Bearing offers smooth operation thanks to its tapered bore and lubrication groove design.
Its wide temperature range makes it suitable for both hot and cold industrial settings.
Automotive vs Aerospace: Applications of 21311 EK Bearing
In trucks and buses, 21311 EK Bearing supports drivetrain components, balancing heavy loads with ease.
While not typically used in aerospace, its robustness is ideal for ground vehicles facing tough terrain.
Essential Roles of 21311 EK Bearing
In paper mills, 21311 EK Bearing helps maintain consistent performance in rollers and drying cylinders.
The open seal type allows for easy relubrication, extending service life in dusty environments.
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