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Super Precision Angular Contact Ball Bearings 7209 CDGB/P4A

Super Precision Angular Contact Ball Bearings 7209 CDGB/P4A

The 7209 CDGB/P4A is a super precision angular contact ball bearing with a 45mm bore and 85mm outer diameter, crafted from durable chrome steel. It features a 15° contact angle and is designed for light preload applications.

This bearing handles radial loads up to 9518 lbf and spins smoothly at speeds up to 41,000 RPM. Its phenolic cage ensures quiet operation and long service life, even in demanding conditions.

The open design allows for easy lubrication, while the P4A tolerance class guarantees high precision. It works well in temperatures from -30°C to 110°C.

Ideal for machine tools or high-speed spindles, this bearing can be matched in sets of four for back-to-back, face-to-face, or tandem arrangements. Weighing 0.41kg, it balances strength and precision effortlessly.

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Product Parameters

  • Part Number 7209 CDGB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 19 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 14
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 9518 lbf
  • Static Radial Load 6975 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.41 kg
  • Price（$） 9.36
Super Precision Angular Contact Ball Bearings 7209 CDGB/P4A dimension drawing
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Features

Performance Features of 7209 CDGB/P4A Bearing

7209 CDGB/P4A Bearing is crafted with chrome steel rings and balls, ensuring durability and precision in angular contact applications.
Its dynamic radial load capacity of 9518 lbf makes it suitable for high-performance machinery.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 41,000 rpm, it excels in high-speed environments.

7209 CDGB/P4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its light preload and P4A tolerance class ensure consistent performance in precision tasks.

The open seal design allows for easy lubrication, extending the bearing’s service life.
Its universal matching capability offers flexibility in various mounting configurations.

Application

Industrial Uses of 7209 CDGB/P4A Bearing
7209 CDGB/P4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The light preload and P4A tolerance class make it suitable for applications demanding minimal vibration.

In automotive applications, 7209 CDGB/P4A Bearing supports gearbox systems, providing smooth operation under angular loads. Its chrome steel construction offers durability, while the phenolic cage reduces friction for better efficiency.

For robotics, 7209 CDGB/P4A Bearing is ideal for joint mechanisms, thanks to its ability to handle combined radial and axial loads. The open design allows for easy lubrication, extending service life in continuous operation.

Where Is 7209 CDGB/P4A Bearing Used?
7209 CDGB/P4A Bearing finds its place in medical imaging devices, where precision and reliability are critical. The high-speed capability ensures smooth performance in rotating components like CT scanners.

In industrial automation, 7209 CDGB/P4A Bearing is often found in robotic arms, providing stable movement under varying loads. Its universal matching feature allows for flexible arrangement in complex assemblies.

Built for Heavy-Duty Use: 7209 CDGB/P4A Bearing
7209 CDGB/P4A Bearing excels in aerospace applications, such as helicopter rotor systems, where its high dynamic load capacity is essential. The temperature range ensures performance in extreme conditions.

For consumer electronics, 7209 CDGB/P4A Bearing is used in high-end printers, ensuring precise paper feed mechanisms. The lubricated design reduces maintenance needs, making it a cost-effective choice.

Automotive vs Aerospace: Applications of 7209 CDGB/P4A Bearing
In automotive systems, 7209 CDGB/P4A Bearing supports turbocharger shafts, handling high speeds and angular loads. Its lightweight design contributes to fuel efficiency.

In aerospace, 7209 CDGB/P4A Bearing is used in flight control systems, where reliability and precision are paramount. The phenolic cage material ensures smooth operation even under extreme temperatures.

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