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21318E CJ W33 Double Row Spherical Roller Bearing

21318E CJ W33 Double Row Spherical Roller Bearing

The 21318E CJ W33 is a double-row spherical roller bearing with a 90mm bore and 190mm outer diameter, crafted from robust chrome steel. It manages combined loads up to 8835 lbf and operates smoothly at speeds up to 4800 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 combined loads are prevalent.

Weighing 6.25kg, it’s built to handle demanding conditions while complying with RoHS and REACH standards for safety and environmental care.

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Product Parameters

  • Part Number 21318E CJ W33
  • Brand TFL
  • Interchangeable SKF
  • Size 90 x 190 x 43 mm
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.02mm 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 Cylindrical
  • 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 6.25 kg
  • Price （US$） 88.74

Features

Performance Features of 21318E CJ W33 Bearing

21318E CJ W33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 8835 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 4800 rpm, it delivers reliable performance in various industrial settings.

21318E CJ W33 Bearing features a steel cage for enhanced durability and reduced wear.
Its lubrication groove and holes facilitate efficient grease distribution, extending maintenance intervals.

Designed for temperatures from -30° to 200°C, it performs well in demanding environments.
The standard radial clearance (CN) ensures consistent operation across different applications.

Application

Industrial Uses of 21318E CJ W33 Bearing
21318E CJ W33 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 also accommodates misalignment, reducing wear in demanding environments.

Where Is 21318E CJ W33 Bearing Used?
You’ll often find 21318E CJ W33 Bearing in mining equipment, where its high dynamic load capacity ensures reliable performance under extreme conditions. The steel cage and chrome steel rollers provide durability, even in abrasive settings.

Built for Heavy-Duty Use: 21318E CJ W33 Bearing
21318E CJ W33 Bearing excels in paper mill machinery, supporting heavy rolls with its robust construction. The lubrication groove and holes make maintenance straightforward, extending service life in continuous operation.

Automotive vs Aerospace: Applications of 21318E CJ W33 Bearing
In automotive applications, 21318E CJ W33 Bearing is used in large truck transmissions, while in aerospace, it supports auxiliary equipment. Its wide temperature range (-30° to 200°C) ensures versatility across industries.

What Makes 21318E CJ W33 Bearing a Preferred Choice?
21318E CJ W33 Bearing is a go-to for wind turbine gearboxes, thanks to its ability to handle high speeds (up to 4800 rpm) and heavy loads. The CN radial clearance offers a balance between precision and durability.

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