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21320 EK Double Row Spherical Roller Bearing
21320 EK Double Row Spherical Roller Bearing

21320 EK Double Row Spherical Roller Bearing

The 21320 EK is a double-row spherical roller bearing with a 100mm bore and 215mm outer diameter, built from sturdy chrome steel. It manages combined loads up to 97342 lbf and runs smoothly at speeds up to 4500 RPM.

Its tapered bore design ensures a secure fit, while the open structure allows easy lubrication through the 4.5mm holes. The steel cage adds durability, making it suitable for heavy-duty use.

This bearing operates in temperatures from -30°C to 200°C, ideal for harsh environments. It’s interchangeable with SKF models, offering a reliable replacement option.

Weighing 8.85kg, it’s robust yet manageable for industrial applications like gearboxes or mining equipment. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 21320 EK
  • Brand TFL
  • Interchangeable SKF
  • Size 100 x 215 x 47 mm
  • Bore Dia 100 mm
  • Bore Dia Tolerance +0.035mm to 0
  • Outer Dia 215 mm
  • Outer Dia Tolerance -0.030mm to 0
  • Width 47 mm
  • Width Tolerance -0.08mm to 0
  • Shoulder Dia Of Inner Ring 118 mm
  • Shoulder/Recess Dia Of Outer Ring 159 mm
  • Width Of Lubrication Groove 8.3 mm
  • Diameter Of Lubrication Hole 4.5 mm
  • Chamfer Dimension min.3 mm
  • System of Measurement Metric
  • Radial run-out Standard
  • Bearing Type Roller
  • Roller Bearing Type Spherical
  • Bore Type Taper 1:12
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 97342 lbf
  • Static Radial Load 110156 lbf
  • Max Speed 4500 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 8.85 kg
  • Price (US$) 175.38

Features

Performance Features of 21320 EK Bearing

21320 EK Bearing is built with chrome steel rings and rollers, offering robust resistance to combined loads.
Its dynamic radial load capacity reaches 97342 lbf, making it suitable for heavy-duty applications.

The double-row spherical roller design ensures smooth operation even under misalignment conditions.
With a maximum speed of 4500 rpm, it balances high performance and durability.

21320 EK Bearing operates efficiently in temperatures ranging from -30° to 200°C.
Its steel cage maintains roller alignment, reducing wear and extending service life.

Application

Industrial Uses of 21320 EK Bearing
21320 EK 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 tapered bore ensures a secure fit, reducing slippage in high-vibration environments.

In automotive applications, 21320 EK Bearing supports drivetrain components, such as axle systems, due to its robust construction and high dynamic load capacity. Its metric sizing makes it interchangeable with major European brands, simplifying maintenance.

For industrial fans and blowers, 21320 EK Bearing’s open design allows for easy lubrication, extending service life in dusty or high-temperature conditions. The chrome steel rollers provide reliable performance under continuous operation.

Where Is 21320 EK Bearing Used?
21320 EK Bearing excels in mining equipment, where its ability to handle combined loads and misalignment is critical. The steel cage enhances durability, even in abrasive environments.

In paper mills, 21320 EK Bearing’s high-speed capability and temperature resistance make it ideal for rollers and drying cylinders. The lubrication groove ensures consistent performance under demanding conditions.

Built for Heavy-Duty Use: 21320 EK Bearing
21320 EK Bearing is a go-to choice for construction machinery, such as cranes and excavators, thanks to its high static radial load rating. The tapered bore simplifies installation, saving time during assembly.

In agricultural equipment, 21320 EK Bearing’s resistance to shock loads and contaminants ensures reliable operation in tractors and harvesters. The open seal design allows for easy inspection and relubrication.

Automotive vs Aerospace: Applications of 21320 EK Bearing
In automotive systems, 21320 EK Bearing handles the rigorous demands of heavy trucks and buses, offering stability under varying loads. Its compatibility with SKF models makes it a cost-effective replacement.

For aerospace ground support equipment, 21320 EK Bearing’s temperature range and precision tolerances ensure smooth operation in critical applications. The steel construction meets stringent industry standards.

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