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21308 EW/C2 Double Row Spherical Roller Bearing
21308 EW/C2 Double Row Spherical Roller Bearing

21308 EW/C2 Double Row Spherical Roller Bearing

The 21308 EW/C2 is a double-row spherical roller bearing with a 40mm bore and 90mm outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 24055 lbf and operates smoothly at speeds up to 9500 RPM.

Its open design and steel cage ensure durability, while the C2 radial clearance allows for thermal expansion. 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 0.74kg, it’s a solid yet manageable option for demanding environments. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 21308 EW/C2
  • Brand TFL
  • Interchangeable SKF
  • Size 40 x 90 x 23 mm
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 23 mm
  • Width Tolerance -0.06mm to 0
  • Shoulder Dia Of Inner Ring 60 mm
  • Shoulder/Recess Dia Of Outer Ring 79.8 mm
  • Width Of Lubrication Groove 5.5 mm
  • Diameter Of Lubrication Hole 3 mm
  • Chamfer Dimension min.1.5 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 24055 lbf
  • Static Radial Load 24279 lbf
  • Max Speed 9500 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance C2
  • RoHs Compliant
  • REACH Compliant
  • Weight 0.74 kg

Features

How Does 21308 EW/C2 Bearing Handle Combined Loads?

21308 EW/C2 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 24055 lbf.
The steel cage maintains roller alignment, enhancing performance and reducing wear.
With a maximum speed of 9500 rpm, it suits high-speed applications while maintaining reliability.

What Makes 21308 EW/C2 Bearing Suitable for High-Temperature Applications?

21308 EW/C2 Bearing operates efficiently in temperatures ranging from -30° to 200°C.
Its chrome steel rollers and rings resist thermal deformation, ensuring consistent performance.
The open design allows for easy lubrication, crucial for high-temperature environments.
This bearing is built to maintain stability even under extreme conditions.

Engineered for Precision: 21308 EW/C2 Bearing

21308 EW/C2 Bearing is crafted with precise tolerances for smooth operation.
Its spherical roller design compensates for misalignment, reducing stress on components.
The lubrication groove and holes ensure even oil distribution, enhancing longevity.
This bearing is a reliable choice for demanding industrial applications.

Why Choose 21308 EW/C2 Bearing for Heavy-Duty Applications?

21308 EW/C2 Bearing’s robust design handles heavy loads with ease, thanks to its double-row rollers.
The chrome steel construction provides excellent resistance to wear and fatigue.
With a static radial load capacity of 24279 lbf, it ensures long-term reliability.
Its high-speed capability makes it versatile for various industrial uses.

Optimized for Efficiency: 21308 EW/C2 Bearing

21308 EW/C2 Bearing’s design minimises friction, improving energy efficiency.
The spherical rollers reduce stress concentrations, enhancing load distribution.
Its C2 radial clearance ensures optimal performance under varying conditions.
This bearing is a practical solution for applications requiring both precision and durability.

Application

Industrial Uses of 21308 EW/C2 Bearing
21308 EW/C2 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 helps accommodate misalignment, making it ideal for rugged environments.

In automotive applications, 21308 EW/C2 Bearing supports drivetrain components, ensuring smooth operation under high loads. Its chrome steel rollers provide durability, while the C2 radial clearance allows for thermal expansion in demanding conditions.

For industrial fans and blowers, 21308 EW/C2 Bearing’s high-speed capability and temperature resistance make it a reliable choice. The open design simplifies lubrication, extending service life in continuous operation.

Where Is 21308 EW/C2 Bearing Used?
You’ll often find 21308 EW/C2 Bearing in conveyor systems, where its combined load capacity and misalignment tolerance are crucial. The steel cage ensures stability even under heavy vibration.

In paper mill equipment, 21308 EW/C2 Bearing handles the high speeds and loads typical of rollers. Its metric sizing and interchangeable design with SKF make it a versatile option for maintenance and replacements.

Built for Heavy-Duty Use: 21308 EW/C2 Bearing
21308 EW/C2 Bearing excels in mining equipment, where its dynamic radial load capacity withstands extreme conditions. The lubrication groove design ensures consistent performance in dusty environments.

For construction machinery like cranes, 21308 EW/C2 Bearing’s spherical rollers adapt to uneven loads. The wide temperature range (-30° to 200°C) makes it suitable for outdoor use in varying climates.

Automotive vs Aerospace: Applications of 21308 EW/C2 Bearing
In automotive gearboxes, 21308 EW/C2 Bearing provides reliable support under high torque. Its C2 clearance accommodates thermal expansion during prolonged use.

For aerospace ground equipment, 21308 EW/C2 Bearing’s precision and load capacity ensure smooth operation. The chrome steel construction meets stringent durability requirements.

Q&A

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