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Super Precision Angular Contact Ball Bearings 71909 CE/P4ADFA

Super Precision Angular Contact Ball Bearings 71909 CE/P4ADFA

The 71909 CE/P4ADFA is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. Its compact 24mm width and matched pair design (DF arrangement) offer stability for high-speed applications.

With a 15° contact angle, it handles both radial and axial loads efficiently, supporting up to 3780 lbf dynamically. It spins smoothly at speeds up to 41,000 RPM, thanks to its phenolic cage and pre-lubrication.

The open seal design allows easy maintenance, while the P4A tolerance ensures exceptional accuracy. Ideal for machine tools or spindle drives where precision is key.

Weighing just 0.26kg per bearing, the set operates reliably between -30°C and 110°C. Interchangeable with SKF equivalents for hassle-free replacements.

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Product Parameters

  • Part Number 71909 CE/P4ADFA
  • 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 21
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings >< DF
  • Number Of Bearings In Matched Set 2
  • 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 3780 lbf
  • Static Radial Load 3082 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 CE/P4ADFA dimension drawing
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Features

How Is 71909 CE/P4ADFA Bearing Engineered for Reliability?

71909 CE/P4ADFA Bearing features a 15° contact angle, optimised for precision angular contact applications.

Its chrome steel rings and balls ensure durability, while the phenolic cage maintains alignment under high speeds.

With a dynamic radial load capacity of 3780 lbf, it handles demanding conditions reliably.

The extra light preload (Class A) enhances smooth operation, making it suitable for high-speed applications up to 41,000 rpm.

Application

Industrial Uses of 71909 CE/P4ADFA Bearing
This bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for continuous operation.

Where Is 71909 CE/P4ADFA Bearing Used?
You’ll find it in automotive transmissions, where its extra light preload helps maintain smooth gear shifts. The matched arrangement also improves load distribution in compact spaces.

Built for Heavy-Duty Use: 71909 CE/P4ADFA Bearing
Its chrome steel construction handles radial loads well in industrial pumps and compressors. The P4A tolerance class guarantees consistent performance under demanding conditions.

Automotive vs Aerospace: Applications of 71909 CE/P4ADFA Bearing
In cars, it supports wheel hubs, while in aircraft, it aids in auxiliary power units. The high-speed capability (41,000 rpm) makes it versatile across both sectors.

Perfect Fit for Automation: 71909 CE/P4ADFA Bearing
Robotic arms benefit from its low-friction design and precise movement. The open seal allows for easy relubrication in high-cycle applications.

Q&A

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