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21318 EK Double Row Spherical Roller Bearing
21318 EK Double Row Spherical Roller Bearing

21318 EK Double Row Spherical Roller Bearing

The 21318 EK is a double-row spherical roller bearing with a 90mm bore and 190mm outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 8835 lbf and runs smoothly at speeds up to 4800 RPM.

Its open design and steel cage ensure durability, while the tapered bore provides a secure fit. The bearing operates well in temperatures from -30°C to 200°C, making it versatile for various conditions.

This model is interchangeable with SKF bearings, offering a reliable replacement option. Ideal for heavy-duty applications like industrial gearboxes or mining equipment where robust performance is needed.

Weighing 6.2kg, it’s built to handle demanding environments. Compliant with RoHS and REACH standards, it’s a safe and dependable choice for your machinery.

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Product Parameters

  • Part Number 21318 EK
  • Brand TFL
  • Interchangeable SKF
  • Size 90 x 190 x 43 mm
  • Bore Dia 90 mm
  • Bore Dia Tolerance +0.035mm to 0
  • Outer Dia 190 mm
  • Outer Dia Tolerance -0.030mm to 0
  • Width 43 mm
  • Width Tolerance -0.08mm to 0
  • Shoulder Dia Of Inner Ring 112 mm
  • Shoulder/Recess Dia Of Outer Ring 150 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 8835 lbf
  • Static Radial Load 101164 lbf
  • Max Speed 4800 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 6.2 kg
  • Price (US$) 136.43

Features

Performance Features of 21318 EK Bearing

21318 EK Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 8835 lbf, ensuring reliable performance in heavy-duty applications.

The double-row spherical roller design allows for smooth operation even under misalignment conditions.
With a maximum speed of 4800 rpm, it balances durability and efficiency in demanding environments.

21318 EK Bearing operates in temperatures from -30° to 200°C, making it suitable for varied industrial uses.
The steel cage maintains roller alignment, reducing wear and extending the bearing’s service life.

Application

Industrial Uses of 21318 EK Bearing
21318 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 allows for slight misalignment, making it ideal for rugged industrial environments.

Where Is 21318 EK Bearing Used?
You’ll often find 21318 EK Bearing in mining equipment, where its high load capacity and durability are essential for continuous operation.
The taper bore design ensures a secure fit, reducing slippage in high-torque applications.

Built for Heavy-Duty Use: 21318 EK Bearing
21318 EK Bearing excels in construction equipment like cranes and excavators, thanks to its robust chrome steel construction.
The lubrication groove and holes make maintenance straightforward, even in dusty or harsh conditions.

Automotive vs Aerospace: Applications of 21318 EK Bearing
In automotive applications, 21318 EK Bearing supports heavy-duty axles and transmissions, while in aerospace, it’s used in auxiliary systems requiring reliability.
The wide temperature range ensures performance in both hot and cold environments.

Practical Applications of 21318 EK Bearing
21318 EK Bearing is a go-to choice for wind turbines, where its ability to handle variable loads and misalignment is crucial.
The steel cage adds extra strength, making it suitable for long-term use in renewable energy systems.

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