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Super Precision Angular Contact Ball Bearings 71909 CD/P4ADBC

Super Precision Angular Contact Ball Bearings 71909 CD/P4ADBC

The 71909 CD/P4ADBC is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from sturdy chrome steel. It handles radial loads up to 4770 lbf and reaches speeds of 41,000 RPM, making it suitable for high-performance applications.

Its 15° contact angle and matched arrangement (2 bearings DB) provide excellent stability under angular loads. The phenolic cage ensures smooth operation, while the open design allows for easy lubrication.

This bearing operates in temperatures from -30°C to 110°C and meets P4A tolerance standards for precision. Ideal for machine tools or spindle drives where accuracy is key.

Weighing 0.26kg, it’s a lightweight yet durable option. Interchangeable with SKF bearings, it’s a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 71909 CD/P4ADBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4770 lbf
  • Static Radial Load 4275 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.26 kg
Super Precision Angular Contact Ball Bearings 71909 CD/P4ADBC dimension drawing
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Features

Why Choose 71909 CD/P4ADBC Bearing for Precision Tasks?

71909 CD/P4ADBC Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 4770 lbf, it handles demanding tasks with ease.
The P4A tolerance class guarantees consistent performance, even at high speeds up to 41,000 rpm.

The matched arrangement of two bearings enhances stability and load distribution.
Its moderate preload (Class C) ensures smooth operation in precision machinery.

Application

Key Fields for 71909 CD/P4ADBC Bearing
71909 CD/P4ADBC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload and P4A tolerance class make it suitable for applications demanding tight control.

In automotive systems, 71909 CD/P4ADBC Bearing supports gearbox components, handling both radial and axial loads efficiently. Its phenolic cage reduces friction, enhancing performance in high-speed scenarios.

For robotics, 71909 CD/P4ADBC Bearing provides stability in articulated arms, thanks to its matched arrangement and chrome steel construction. The open seal design allows for easy lubrication, extending service life.

Medical imaging devices benefit from 71909 CD/P4ADBC Bearing’s precision, ensuring smooth operation in critical diagnostics. The temperature range of -30°C to 110°C adds reliability in varied environments.

In automation, 71909 CD/P4ADBC Bearing is a go-to for 3D printers, where its low tolerance and high-speed capability improve print accuracy. The lubricated design minimises maintenance needs.

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