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21318 EK W33 Double Row Spherical Roller Bearing
21318 EK W33 Double Row Spherical Roller Bearing

21318 EK W33 Double Row Spherical Roller Bearing

The 21318 EK W33 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 (1:12) allows for secure fitting. The bearing operates 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 high radial loads are common.

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

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Product Parameters

  • Part Number 21318 EK W33
  • 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 6.25 kg
  • Price (US$) 107.28

Features

How Does 21318 EK W33 Bearing Handle Combined Loads?

21318 EK W33 Bearing features a double-row spherical roller design, ideal for handling both radial and axial loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 8835 lbf.
The tapered bore design allows for secure mounting, enhancing stability during operation.
With a maximum speed of 4800 rpm, it delivers reliable performance in demanding conditions.

Why Choose 21318 EK W33 Bearing for High-Temperature Applications?

21318 EK W33 Bearing operates efficiently in temperatures ranging from -30° to 200°C.
Its chrome steel rollers and rings maintain structural integrity even under thermal stress.
The lubrication groove and holes ensure consistent oil distribution, reducing friction and wear.
This design makes it suitable for industrial applications where heat resistance is crucial.

Engineered for Reliability: 21318 EK W33 Bearing

21318 EK W33 Bearing’s double-row spherical rollers provide excellent load distribution.
The steel cage keeps the rollers aligned, minimising wear and extending service life.
Its tapered bore ensures precise fitting, reducing vibration and noise.
With a static radial load capacity of 101164 lbf, it excels in heavy-duty applications.

Steel vs Ceramic Bearings: Strengths of 21318 EK W33 Bearing

21318 EK W33 Bearing’s chrome steel construction offers superior strength and wear resistance.
The spherical roller design accommodates misalignment, ensuring smooth operation.
Its lubrication system enhances performance, even under high loads and speeds.
This makes it a dependable choice for applications requiring durability and precision.

Application

Industrial Uses of 21318 EK W33 Bearing
21318 EK W33 Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles high radial loads with ease. The spherical roller construction also accommodates slight misalignments, reducing wear in demanding environments.

Where Is 21318 EK W33 Bearing Used?
You’ll often find 21318 EK W33 Bearing in mining equipment, where its robust chrome steel construction withstands harsh conditions. Its tapered bore ensures a secure fit, making it ideal for high-vibration applications.

Built for Heavy-Duty Use: 21318 EK W33 Bearing
21318 EK W33 Bearing excels in paper mills and steel plants, thanks to its ability to manage combined loads. The lubrication groove and holes simplify maintenance, extending service life in continuous operations.

Automotive vs Aerospace: Applications of 21318 EK W33 Bearing
In automotive systems, 21318 EK W33 Bearing supports large axles and gearboxes, while in aerospace, its high-temperature tolerance suits auxiliary equipment. The metric sizing ensures compatibility across industries.

Perfect Fit for Automation: 21318 EK W33 Bearing
21318 EK W33 Bearing is a reliable choice for robotic arms and conveyor systems, where precision and durability are key. The steel cage enhances stability, even at high speeds.

Q&A

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