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Super Precision Angular Contact Ball Bearings 7209 CD/QBTAVQ126

Super Precision Angular Contact Ball Bearings 7209 CD/QBTAVQ126

The 7209 CD/QBTAVQ126 is a super precision angular contact ball bearing with a 45mm bore and 85mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 25200 lbf and operates smoothly at speeds up to 41000 RPM.

Its 15° contact angle and extra light preload ensure precise performance, while the phenolic cage offers quiet operation. The open design allows for easy lubrication and maintenance.

This bearing comes in a matched set of four, ideal for applications requiring high accuracy like machine tool spindles or precision instruments. It works well in temperatures from -30°C to 110°C.

Weighing 1.64kg, it’s robust yet manageable for its size. Compliant with P4A tolerance class, it’s a reliable choice for demanding environments. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 7209 CD/QBTAVQ126
  • 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 76 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 4 bearings <>>> QBT
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 25200 lbf
  • Static Radial Load 28125 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 1.64 kg
Super Precision Angular Contact Ball Bearings 7209 CD/QBTAVQ126 dimension drawing
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Features

Performance Features of 7209 CD/QBTAVQ126 Bearing

7209 CD/QBTAVQ126 Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and reliable performance under dynamic radial loads up to 25,200 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 41,000 rpm, it delivers efficiency in high-speed scenarios.

7209 CD/QBTAVQ126 Bearing operates in temperatures from -30°C to 110°C, suitable for various environments.
Its extra light preload (Class A) ensures precision, making it ideal for demanding applications.

The matched arrangement of four bearings provides stability and consistent performance.
Lubrication is pre-applied, reducing initial setup time and maintenance needs.

Application

Key Fields for 7209 CD/QBTAVQ126 Bearing
In machine tools, 7209 CD/QBTAVQ126 Bearing excels with its high precision and angular contact design, ideal for spindle applications. The phenolic cage reduces friction, ensuring smooth operation even at high speeds.

Where Is 7209 CD/QBTAVQ126 Bearing Used?
You’ll often find 7209 CD/QBTAVQ126 Bearing in robotics, where its matched arrangement provides stability for precise movements. The extra light preload makes it suitable for delicate tasks in automated systems.

Built for Heavy-Duty Use: 7209 CD/QBTAVQ126 Bearing
7209 CD/QBTAVQ126 Bearing handles radial loads effortlessly in industrial gearboxes, thanks to its chrome steel construction. Its temperature range also makes it reliable in varying operating conditions.

Automotive vs Aerospace: Applications of 7209 CD/QBTAVQ126 Bearing
In automotive systems, 7209 CD/QBTAVQ126 Bearing supports transmissions with its durable design. For aerospace, its precision and low weight are key for components like landing gear mechanisms.

Practical Applications of 7209 CD/QBTAVQ126 Bearing
7209 CD/QBTAVQ126 Bearing is a go-to for medical imaging devices, where its quiet operation and accuracy matter. The open seal type allows for easy lubrication, extending its service life.

Q&A

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