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21309 AV NILOS RING 45×90.8×3 (6309) Double Row Spherical Roller Bearing
21309 AV NILOS RING 45x90.8x3 (6309) Double Row Spherical Roller Bearing

21309 AV NILOS RING 45×90.8×3 (6309) Double Row Spherical Roller Bearing

The 21309 AV NILOS RING is a double-row spherical roller bearing with a 45mm bore and 100mm outer diameter, crafted from durable chrome steel. It handles combined loads up to 29000 lbf and operates smoothly at speeds up to 8500 RPM.

Its open design and steel cage ensure reliable performance, while the lubrication groove and hole make maintenance straightforward. The bearing works in temperatures from -30°C to 200°C, suitable for demanding environments.

This model is interchangeable with SKF bearings, offering a practical replacement option. Ideal for heavy-duty applications like industrial gearboxes or mining equipment where robust performance is needed.

Weighing 0.98kg, it balances strength and manageability. Compliant with RoHS and REACH standards, it’s a safe choice for various industries.

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Product Parameters

  • Part Number 21309 AV NILOS RING 45x90.8x3 (6309)
  • 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

Performance Features of 21309 AV NILOS RING 45×90.8×3 (6309) Bearing

21309 AV NILOS RING 45×90.8×3 (6309) Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 29000 lbf, making it suitable for heavy-duty applications.
The double-row spherical roller design ensures smooth operation and compensates for misalignment.
With a maximum speed of 8500 rpm, it delivers reliable performance in various industrial settings.

How Does 21309 AV NILOS RING 45×90.8×3 (6309) Bearing Resist Wear?

21309 AV NILOS RING 45×90.8×3 (6309) Bearing’s chrome steel construction enhances its resistance to wear and tear.
The steel cage maintains roller alignment, reducing friction and prolonging service life.
Its spherical roller design allows for slight misalignment without compromising performance.
The bearing operates efficiently in temperatures ranging from -30° to 200°C, ensuring durability in harsh conditions.

Engineered for Precision: 21309 AV NILOS RING 45×90.8×3 (6309) Bearing

21309 AV NILOS RING 45×90.8×3 (6309) Bearing features precise dimensions with tight tolerances for accurate performance.
The lubrication groove and holes ensure consistent oil distribution, reducing maintenance needs.
Its double-row design provides stability and load distribution, ideal for high-speed applications.
With a static radial load capacity of 28551 lbf, it offers reliable support in demanding environments.

Why Choose 21309 AV NILOS RING 45×90.8×3 (6309) Bearing for Combined Loads?

21309 AV NILOS RING 45×90.8×3 (6309) Bearing handles both radial and axial loads efficiently due to its spherical roller design.
The chrome steel rollers and rings provide strength and durability under heavy stress.
Its open seal type allows for easy lubrication, ensuring smooth operation over time.
The bearing’s wide temperature range makes it versatile for various industrial applications.

Structural Advantages of 21309 AV NILOS RING 45×90.8×3 (6309) Bearing

21309 AV NILOS RING 45×90.8×3 (6309) Bearing’s double-row construction enhances load capacity and stability.
The precise shoulder and recess diameters ensure proper fit and alignment in machinery.
Its steel cage design keeps rollers in place, minimising friction and wear.
With a radial clearance of CN, it offers optimal performance in diverse operating conditions.

Application

Industrial Uses of 21309 AV NILOS RING 45×90.8×3 (6309) Bearing
21309 AV NILOS RING 45×90.8×3 (6309) Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles high radial and axial loads. The spherical roller construction allows for slight misalignment, making it ideal for rugged industrial environments.

In automotive applications, 21309 AV NILOS RING 45×90.8×3 (6309) Bearing supports components such as wheel hubs and transmissions, ensuring smooth operation under varying loads. Its chrome steel rollers provide durability, even in high-speed scenarios.

For automation systems, 21309 AV NILOS RING 45×90.8×3 (6309) Bearing is a reliable choice for robotic arms and conveyor belts, where precision and load capacity are key. The open design simplifies lubrication, extending service life in continuous-use settings.

In wind turbines, 21309 AV NILOS RING 45×90.8×3 (6309) Bearing withstands extreme conditions, from high rotational speeds to temperature fluctuations. Its steel cage ensures stability, reducing maintenance needs in remote installations.

For mining equipment, 21309 AV NILOS RING 45×90.8×3 (6309) Bearing excels in conveyors and drills, where its robust construction handles heavy loads and abrasive environments. The metric sizing ensures compatibility with global machinery standards.

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