21318 EK/C3 Double Row Spherical Roller Bearing

The 21318 EK/C3 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 operates smoothly at speeds reaching 4800 RPM.

Its open design and tapered bore ensure easy installation, while the steel cage enhances durability. The bearing performs reliably in temperatures ranging from -30°C to 200°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Suitable for heavy-duty applications like industrial gearboxes or mining equipment where robust performance is needed.

Weighing 6.25kg, it’s built to handle demanding conditions. Compliant with RoHS and REACH standards for safe and environmentally friendly use.

The lubrication groove and holes simplify maintenance, ensuring long service life. Its spherical roller design accommodates misalignment, making it versatile for various machinery setups.

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Description

Features

Application

Q&A

Product Parameters

Part Number 21318 EK/C3
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 C3
RoHs Compliant
REACH Compliant
Weight 6.25 kg
Price （US$） 136.43

Features

Performance Features of 21318 EK/C3 Bearing

21318 EK/C3 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/C3 Bearing’s C3 radial clearance provides flexibility in high-temperature operations.
The steel cage maintains roller alignment, reducing wear and extending service life.

Designed for temperatures from -30° to 200°C, it performs well in varied conditions.
Its tapered bore ensures secure fitting, simplifying installation and maintenance.

Application

Industrial Uses of 21318 EK/C3 Bearing
21318 EK/C3 Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles high radial and axial loads.
The spherical roller construction allows for slight misalignment, making it ideal for rugged industrial environments.

Where Is 21318 EK/C3 Bearing Used?
In mining equipment, 21318 EK/C3 Bearing provides reliable performance under extreme conditions, thanks to its chrome steel rollers and robust cage.
Its tapered bore ensures a secure fit on shafts, reducing slippage in high-torque applications.

Built for Heavy-Duty Use: 21318 EK/C3 Bearing
21318 EK/C3 Bearing excels in paper mill machinery, where its C3 clearance accommodates thermal expansion during continuous operation.
The steel cage enhances durability, making it a long-lasting choice for demanding settings.

Automotive vs Aerospace: Applications of 21318 EK/C3 Bearing
In automotive drivetrains, 21318 EK/C3 Bearing supports heavy loads in differentials and wheel hubs.
For aerospace ground equipment, its high-temperature tolerance ensures stability in auxiliary power units.

Essential Roles of 21318 EK/C3 Bearing
21318 EK/C3 Bearing is vital in wind turbine gearboxes, where its combined load capacity handles unpredictable forces.
The lubrication groove design simplifies maintenance, extending service intervals in remote installations.