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21306A Double Row Spherical Roller Bearing
21306A Double Row Spherical Roller Bearing

21306A Double Row Spherical Roller Bearing

The 21306A is a double-row spherical roller bearing with a 30mm bore and 72mm outer diameter, crafted from sturdy chrome steel. It manages combined loads well, handling up to 1477 lbf dynamically and 13713 lbf statically.

With a maximum speed of 10000 RPM, it’s suitable for high-speed applications. The open design allows for easy lubrication, and the steel cage ensures durability.

Its spherical roller design helps accommodate misalignment, making it reliable in demanding conditions. The bearing operates smoothly in temperatures from -30°C to 200°C.

Ideal for heavy machinery or industrial equipment where combined loads and misalignment are common. Weighing 0.41kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards.

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Product Parameters

  • Part Number 21306A
  • Brand TFL
  • Interchangeable SKF
  • Size 30 x 72 x 19 mm
  • Bore Dia 30 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 72 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 19 mm
  • Width Tolerance -0.06mm to 0
  • Shoulder Dia Of Inner Ring 43.3 mm
  • Shoulder/Recess Dia Of Outer Ring 58.8 mm
  • Chamfer Dimension min.1.1 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 1477 lbf
  • Static Radial Load 13713 lbf
  • Max Speed 10000 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 0.41 kg
  • Price (US$) 23.4

Features

Performance Features of 21306A Bearing

21306A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 1477 lbf, ensuring reliable performance in various applications.

The double-row spherical roller design allows for smooth operation even under misalignment conditions.
With a maximum speed of 10,000 rpm, it balances durability and efficiency in demanding environments.

21306A Bearing operates effectively in temperatures ranging from -30° to 200°C, making it versatile.
The steel cage maintains roller alignment, reducing wear and extending the bearing’s service life.

Its open design simplifies lubrication, ensuring consistent performance with minimal maintenance.
The precise tolerances of 21306A Bearing contribute to its reliable and long-lasting operation.

Application

Industrial Uses of 21306A Bearing
21306A Bearing is commonly used in heavy machinery like conveyors and crushers, where its double-row spherical design handles misalignment effortlessly. The chrome steel construction ensures durability even in demanding industrial environments.

In automotive applications, 21306A Bearing supports components such as gearboxes and axles, providing reliable performance under combined loads. Its metric sizing makes it a versatile choice for various vehicle models.

For automation systems, 21306A Bearing’s high-speed capability (up to 10,000 rpm) makes it suitable for robotic arms and precision equipment. The open design allows for easy lubrication, extending its service life.

Where Is 21306A Bearing Used?
You’ll often find 21306A Bearing in mining equipment, where its robust design handles heavy radial and axial loads. The spherical rollers adapt well to shaft misalignment, reducing wear.

In wind turbines, 21306A Bearing’s ability to withstand high dynamic loads makes it a reliable choice for rotor shafts. The wide temperature range (-30° to 200°C) ensures performance in extreme conditions.

Built for Heavy-Duty Use: 21306A Bearing
21306A Bearing excels in construction machinery like cranes and excavators, thanks to its high static radial load capacity (13,713 lbf). The steel cage adds extra strength for long-term use.

In agricultural equipment, 21306A Bearing’s resistance to misalignment and shock loads keeps harvesters and tractors running smoothly. Its metric dimensions simplify replacements in global machinery.

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