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21318 E/C3 Double Row Spherical Roller Bearing
21318 E/C3 Double Row Spherical Roller Bearing

21318 E/C3 Double Row Spherical Roller Bearing

The 21318 E/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 well, handling up to 8835 lbf dynamically and spins efficiently at 4800 RPM.

Its open design and C3 radial clearance allow for easy lubrication, while the steel cage ensures durability. The bearing operates smoothly 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 reliability is key.

Weighing 6.25kg, it’s built to last with a robust construction. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 21318 E/C3
  • 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 C3
  • RoHs Compliant
  • REACH Compliant
  • Weight 6.25 kg
  • Price (US$) 115.33

Features

Performance Features of 21318 E/C3 Bearing

21318 E/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 operation under heavy stress.

The double-row spherical roller design allows for slight misalignment, improving performance in real-world conditions.
With a maximum speed of 4800 rpm, it delivers both durability and efficiency.

21318 E/C3 Bearing operates in temperatures from -30° to 200°C, making it suitable for varied environments.
The steel cage maintains roller alignment, reducing wear and extending service life.

The lubrication groove and holes in 21318 E/C3 Bearing ensure consistent oil distribution.
This design feature minimises maintenance needs while enhancing smooth operation.

Application

Industrial Uses of 21318 E/C3 Bearing
21318 E/C3 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 compensates for minor misalignments, reducing wear.

In automotive applications, 21318 E/C3 Bearing supports components like drivetrains and axles, offering durability under high loads. Its C3 radial clearance ensures smooth performance even with thermal expansion during long drives.

For industrial fans and blowers, 21318 E/C3 Bearing’s high-speed capability (up to 4800 rpm) makes it a reliable choice. The chrome steel rollers and steel cage provide long service life in demanding environments.

Where Is 21318 E/C3 Bearing Used?
You’ll often find 21318 E/C3 Bearing in conveyor systems, where its combined load capacity keeps operations running smoothly. The open design simplifies lubrication, which is essential for continuous use.

In construction equipment like excavators, 21318 E/C3 Bearing handles shock loads and vibrations effectively. Its metric sizing ensures compatibility with a wide range of machinery from different manufacturers.

Built for Heavy-Duty Use: 21318 E/C3 Bearing
21318 E/C3 Bearing excels in mining equipment, where its robust construction withstands harsh conditions. The spherical rollers distribute loads evenly, minimising stress on individual components.

For paper mill machinery, 21318 E/C3 Bearing’s temperature range (-30° to 200°C) ensures reliable performance. The steel cage and chrome steel rollers resist corrosion in humid environments.

Automotive vs Aerospace: Applications of 21318 E/C3 Bearing
In automotive gearboxes, 21318 E/C3 Bearing provides stability under high torque. Its C3 clearance accommodates thermal expansion, preventing premature failure.

For aerospace ground equipment, 21318 E/C3 Bearing’s precision ensures smooth operation in auxiliary systems. The metric dimensions align with international standards, simplifying maintenance.

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