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21318E W33 Double Row Spherical Roller Bearing
21318E W33 Double Row Spherical Roller Bearing

21318E W33 Double Row Spherical Roller Bearing

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

Its spherical roller design allows for slight misalignment, while the steel cage ensures durability. The open construction requires regular lubrication for optimal performance.

This bearing is suitable for temperatures ranging from -30°C to 200°C, making it versatile for various conditions. It’s interchangeable with SKF bearings, offering a reliable replacement option.

Weighing 6.25kg, it’s robust yet manageable for industrial applications like heavy machinery or conveyor systems. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 21318E 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

How Does 21318E W33 Bearing Handle Combined Loads?

21318E W33 Bearing features a double-row spherical roller design, ideal for managing both radial and thrust loads.
Its chrome steel construction ensures strength and durability under high dynamic radial loads of up to 8835 lbf.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a maximum speed of 4800 rpm, it performs reliably in demanding industrial applications.

What Makes 21318E W33 Bearing Suitable for High-Temperature Applications?

21318E W33 Bearing operates efficiently in temperatures ranging from -30° to 200°C, making it versatile for various environments.
Its chrome steel rollers and rings resist thermal expansion, ensuring consistent performance.
The lubrication groove design allows for easy maintenance, even under extreme conditions.
This bearing is a robust choice for industries requiring high-temperature resilience.

Engineered for Precision: 21318E W33 Bearing

21318E W33 Bearing is crafted with precise tolerances, ensuring smooth operation in combined load scenarios.
Its spherical roller design accommodates misalignment, reducing stress on adjacent components.
The lubrication holes and grooves facilitate consistent oil distribution, enhancing longevity.
This bearing is a reliable solution for heavy-duty machinery requiring precision and durability.

Application

Industrial Uses of 21318E W33 Bearing
The 21318E 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. Its spherical roller construction helps compensate for misalignment, ensuring smooth operation in demanding conditions.

Where Is 21318E W33 Bearing Used?
You’ll often find the 21318E W33 Bearing in mining equipment, where its high dynamic load capacity and robust construction withstand harsh environments. The lubrication groove and holes make maintenance easier, extending its service life even under continuous use.

Built for Heavy-Duty Use: 21318E W33 Bearing
This bearing excels in paper mill machinery, thanks to its chrome steel rollers and steel cage, which resist wear and tear. The wide temperature range (-30° to 200°C) also makes it suitable for applications with fluctuating thermal conditions.

Automotive vs Aerospace: Applications of 21318E W33 Bearing
In automotive applications, the 21318E W33 Bearing supports heavy-duty axles and transmissions, while in aerospace, it’s used in ground support equipment. Its metric sizing and high-speed capability (up to 4800 rpm) ensure compatibility across industries.

Practical Applications of 21318E W33 Bearing
For conveyor systems in warehouses, the 21318E W33 Bearing’s combined load handling and misalignment tolerance reduce downtime. The open seal design allows for easy relubrication, keeping operations running smoothly.

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