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21309 EW Double Row Spherical Roller Bearing
21309 EW Double Row Spherical Roller Bearing

21309 EW Double Row Spherical Roller Bearing

The 21309 EW is a double-row spherical roller bearing with a 45mm bore and 100mm outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 29000 lbf and runs smoothly at speeds up to 8500 RPM.

Its open design allows for easy lubrication, while the steel cage ensures durability. The bearing operates efficiently in temperatures ranging from -30°C to 200°C.

This model is interchangeable with SKF bearings, offering a reliable alternative for replacements. Suitable for heavy-duty applications like industrial gearboxes or mining equipment where combined loads are typical.

Weighing 0.98kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 21309 EW
  • Brand TFL
  • Interchangeable SKF
  • Size 45 x 100 x 25 mm
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 100 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 25 mm
  • Width Tolerance -0.06mm to 0
  • Shoulder Dia Of Inner Ring 65.3 mm
  • Shoulder/Recess Dia Of Outer Ring 88 mm
  • Width Of Lubrication Groove 6 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 29000 lbf
  • Static Radial Load 28551 lbf
  • Max Speed 8500 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 0.98 kg

Features

Why Choose 21309 EW Bearing for Precision Tasks?

21309 EW Bearing features a double-row spherical roller design, ideal for handling combined loads with precision.
Its chrome steel construction ensures durability and resistance to wear in demanding conditions.

The dynamic radial load capacity of 29000 lbf allows it to perform reliably under heavy loads.
With a maximum speed of 8500 rpm, it balances high performance and efficiency.

21309 EW Bearing operates in temperatures from -30° to 200°C, suitable for varied environments.
Its steel cage maintains roller alignment, reducing friction and extending service life.

The open design simplifies lubrication, ensuring smooth operation with minimal maintenance.
This makes 21309 EW Bearing a practical choice for industrial applications.

Application

Industrial Uses of 21309 EW Bearing
The 21309 EW Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles combined loads efficiently. Its spherical roller construction helps accommodate misalignment, reducing wear in demanding environments.

In automotive applications, 21309 EW Bearing supports components such as differential systems and axle assemblies, ensuring smooth operation under high radial loads. The chrome steel material provides durability, making it suitable for long-term use in vehicles.

For automation systems, 21309 EW Bearing is ideal for robotic arms and conveyor belts, where precision and reliability are key. The open seal design allows for easy lubrication, maintaining performance in continuous operation.

Where Is 21309 EW Bearing Used?
You’ll often find 21309 EW Bearing in industrial fans and pumps, where its high-speed capability and load capacity are essential. The steel cage ensures stability, even under intense operating conditions.

In construction equipment, 21309 EW Bearing is a reliable choice for cranes and excavators, thanks to its ability to handle heavy radial and axial loads. The wide temperature range also makes it versatile for outdoor use.

Built for Heavy-Duty Use: 21309 EW Bearing
The 21309 EW Bearing excels in mining equipment, where its robust design withstands harsh conditions. The lubrication groove ensures consistent performance, even in dusty or high-friction environments.

For agricultural machinery, 21309 EW Bearing supports gearboxes and harvesters, providing reliable operation under varying loads. Its metric sizing makes it compatible with a wide range of equipment.

Light-Duty vs Heavy-Duty: Best Uses for 21309 EW Bearing
In light-duty applications like small conveyors, 21309 EW Bearing offers smooth performance with minimal maintenance. Its precision engineering ensures longevity even in less demanding setups.

For heavy-duty tasks like steel mill rollers, 21309 EW Bearing’s high load capacity and durability shine. The spherical rollers adapt to misalignment, reducing stress on surrounding components.

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