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21309 VAB Double Row Spherical Roller Bearing
21309 VAB Double Row Spherical Roller Bearing

21309 VAB Double Row Spherical Roller Bearing

The 21309 VAB is a double-row spherical roller bearing with a 45mm bore and 100mm outer diameter, crafted from robust 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, with a 3mm hole and 6mm groove for efficient maintenance. The steel cage ensures durability, while the spherical rollers accommodate slight misalignments.

This bearing suits high-load applications like industrial gearboxes or heavy machinery, operating in temperatures from -30°C to 200°C. It’s interchangeable with SKF models for convenient replacements.

Weighing 0.98kg, it balances strength and practicality. Compliant with RoHS and REACH standards, it’s a reliable choice for demanding environments.

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Product Parameters

  • Part Number 21309 VAB
  • 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
  • Price (US$) 29.7

Features

How Does 21309 VAB Bearing Handle Combined Loads?

21309 VAB Bearing features a double-row spherical roller design, ideal for handling combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 29,000 lbf.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a maximum speed of 8,500 rpm, it performs reliably in high-speed applications.

What Makes 21309 VAB Bearing Suitable for High-Temperature Applications?

21309 VAB Bearing operates efficiently in temperatures ranging from -30° to 200°C.
Its chrome steel rollers and rings resist thermal deformation, maintaining performance under stress.
The lubrication groove and hole design ensure consistent grease distribution, reducing wear.
This makes it a dependable choice for industrial environments with varying thermal conditions.

Engineered for Precision: 21309 VAB Bearing

21309 VAB Bearing’s spherical roller design compensates for misalignment, ensuring smooth operation.
The precise bore and outer diameter tolerances enhance fit and performance in machinery.
Its steel cage and chrome steel components provide long-lasting reliability.
With a static radial load capacity of 28,551 lbf, it handles heavy-duty applications with ease.

Steel vs Ceramic Bearings: Strengths of 21309 VAB Bearing

21309 VAB Bearing uses chrome steel for both rollers and rings, offering excellent strength and wear resistance.
This material choice ensures it can handle high dynamic and static radial loads.
The steel cage adds durability, making it suitable for demanding industrial uses.
Its design balances cost-effectiveness with performance, unlike more expensive ceramic alternatives.

Performance Features of 21309 VAB Bearing

21309 VAB Bearing’s double-row design provides stability under combined loads.
The lubrication groove and hole ensure efficient grease distribution, reducing maintenance needs.
With a radial clearance of CN, it offers optimal performance in various applications.
Its weight of 0.98 kg makes it manageable without compromising on strength.

Application

Industrial Uses of 21309 VAB Bearing
21309 VAB Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row spherical design handles misalignment and heavy radial loads. The chrome steel construction ensures durability in harsh industrial environments.

What Makes 21309 VAB Bearing a Preferred Choice?
In automotive applications, 21309 VAB Bearing supports components like differential systems, offering reliable performance under combined loads. Its metric sizing makes it a versatile fit for various vehicle designs.

Optimized for Performance: 21309 VAB Bearing
For automation systems, 21309 VAB Bearing is ideal for robotic arms and conveyor belts, providing smooth operation at high speeds. The open design allows for easy lubrication, extending service life.

Medical vs Industrial: Where 21309 VAB Bearing Excels
In medical devices like MRI machines, 21309 VAB Bearing’s precision and low noise are crucial. Meanwhile, in industrial settings, its ability to handle heavy loads makes it a go-to choice for equipment like pumps and compressors.

Practical Applications of 21309 VAB Bearing
21309 VAB Bearing is found in wind turbines, where its spherical rollers accommodate shaft deflections. The steel cage and chrome steel rollers ensure long-term reliability in demanding conditions.

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