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Super Precision Angular Contact Ball Bearings 71911 CD/P4ADBB

Super Precision Angular Contact Ball Bearings 71911 CD/P4ADBB

The 71911 CD/P4ADBB is a super precision angular contact ball bearing measuring 55mm by 80mm by 26mm, crafted from durable chrome steel. It features a 15° contact angle and comes in a matched pair for balanced performance.

This bearing handles radial loads up to 7020 lbf and spins smoothly at speeds up to 34,000 RPM. Its phenolic cage ensures quiet operation and long service life, even under light preload conditions.

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

Ideal for precision machinery like spindles or high-speed tools where accuracy is key. Weighing 0.36kg, it’s a robust yet lightweight solution for demanding applications. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71911 CD/P4ADBB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 26 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 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 7020 lbf
  • Static Radial Load 6525 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.36 kg
Super Precision Angular Contact Ball Bearings 71911 CD/P4ADBB dimension drawing
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Features

Performance Features of 71911 CD/P4ADBB Bearing

71911 CD/P4ADBB Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 7020 lbf.

The phenolic cage ensures smooth operation at high speeds, reaching up to 34,000 rpm.
Precision-matched as a duplex set, it offers consistent performance in demanding conditions.

With a temperature range of -30°C to 110°C, 71911 CD/P4ADBB Bearing performs reliably in varied environments.
Its P4A tolerance class guarantees high precision for critical applications.

Application

Industrial Uses of 71911 CD/P4ADBB Bearing
This 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.

Where Is 71911 CD/P4ADBB Bearing Used?
You’ll find 71911 CD/P4ADBB Bearing in automotive transmissions, where its light preload helps reduce friction and improve efficiency. The phenolic cage also handles high speeds well, making it ideal for performance vehicles.

Built for Heavy-Duty Use: 71911 CD/P4ADBB Bearing
In robotics, 71911 CD/P4ADBB Bearing supports articulated arms, offering smooth movement under angular loads. Its chrome steel construction ensures long-lasting performance even with frequent use.

Medical vs Industrial: Where 71911 CD/P4ADBB Bearing Excels
For medical imaging devices, 71911 CD/P4ADBB Bearing provides quiet and precise operation. In industrial settings, its high-speed capability makes it suitable for CNC machinery and other precision equipment.

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