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Super Precision Angular Contact Ball Bearings 71909 CD/P4ADBB

Super Precision Angular Contact Ball Bearings 71909 CD/P4ADBB

The 71909 CD/P4ADBB is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable 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 pair design (DB arrangement) provide excellent stability under angular loads. The phenolic cage ensures smooth operation and reduces friction, while the open seal 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 systems where accuracy and speed are crucial.

Weighing just 0.26kg, it’s a lightweight yet robust choice. Compatible with SKF bearings, it offers a reliable replacement option. The set includes two preloaded bearings for balanced performance.

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Product Parameters

  • Part Number 71909 CD/P4ADBB
  • 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 Light / Class B
  • 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
  • Price（$） 185.184
Super Precision Angular Contact Ball Bearings 71909 CD/P4ADBB dimension drawing
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Features

Performance Features of 71909 CD/P4ADBB Bearing

71909 CD/P4ADBB Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
The chrome steel construction ensures durability and resistance to wear under dynamic radial loads up to 4770 lbf.

Its phenolic cage maintains ball alignment, reducing friction and noise during high-speed operation.
With a maximum speed of 41,000 rpm, it delivers reliable performance in precision tasks.

The matched arrangement of two bearings provides stability, suitable for light preload applications.
Its open design allows for easy lubrication, extending service life in various conditions.

71909 CD/P4ADBB Bearing operates efficiently within a temperature range of -30°C to 110°C.
The P4A tolerance class ensures high precision, making it ideal for demanding industrial uses.

Application

Industrial Uses of 71909 CD/P4ADBB Bearing
71909 CD/P4ADBB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability in demanding industrial environments.

In automotive applications, 71909 CD/P4ADBB Bearing supports high-speed components like turbochargers and electric motors. Its light preload and phenolic cage contribute to smooth operation under angular loads.

For medical imaging devices, 71909 CD/P4ADBB Bearing’s P4A tolerance class guarantees consistent performance in critical diagnostic equipment. The chrome steel construction also enhances durability in sterile environments.

Automation and robotics benefit from 71909 CD/P4ADBB Bearing’s ability to handle both radial and axial loads in robotic arms. The high-speed capability makes it suitable for precision movements in automated systems.

In consumer electronics, 71909 CD/P4ADBB Bearing can be found in high-end printers and scanners, where its low noise and vibration levels improve device performance. The metric sizing ensures compatibility with various compact designs.

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