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Super Precision Angular Contact Ball Bearings 71911 CD/P4ADGA

Super Precision Angular Contact Ball Bearings 71911 CD/P4ADGA

The 71911 CD/P4ADGA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and is designed for angular contact loads, handling up to 7020 lbf dynamically.

Its open design and phenolic cage ensure smooth operation at speeds up to 34,000 RPM, while the extra light preload enhances precision. The bearing is lubricated for long-lasting performance and works in temperatures from -30°C to 110°C.

This model is universally matched, allowing flexible arrangements like back-to-back or face-to-face setups. Ideal for high-precision applications such as machine tools or spindle drives.

Weighing 0.36kg, it’s lightweight yet robust, and interchangeable with SKF bearings. Compliant with P4A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71911 CD/P4ADGA
  • 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 Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • 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
  • Price（$） 218.529
Super Precision Angular Contact Ball Bearings 71911 CD/P4ADGA dimension drawing
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Features

Performance Features of 71911 CD/P4ADGA Bearing

71911 CD/P4ADGA Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and consistent performance under dynamic radial loads up to 7020 lbf.

The phenolic cage in 71911 CD/P4ADGA Bearing reduces friction and wear, enhancing operational efficiency.
With a maximum speed of 34,000 rpm, it delivers smooth performance in high-speed scenarios.

71911 CD/P4ADGA Bearing operates effectively in temperatures ranging from -30°C to 110°C.
Its universal matching design allows flexible arrangement options, including back-to-back and face-to-face configurations.

The extra light preload of 71911 CD/P4ADGA Bearing ensures precise operation with minimal resistance.
Its P4A tolerance class guarantees high precision, making it suitable for demanding applications.

Application

Key Fields for 71911 CD/P4ADGA Bearing
71911 CD/P4ADGA Bearing is widely used in high-speed machine tools, where its 15° contact angle ensures precise radial and axial load handling. The phenolic cage reduces friction, making it ideal for applications demanding smooth operation.

Where Is 71911 CD/P4ADGA Bearing Used?
In automotive systems, 71911 CD/P4ADGA Bearing supports components like electric motors and gearboxes, thanks to its high-speed capability and universal matching design. The chrome steel construction ensures durability under continuous use.

Perfect Fit for Automation: 71911 CD/P4ADGA Bearing
For robotics and automation, 71911 CD/P4ADGA Bearing offers reliable performance in robotic arms and CNC machines. Its extra light preload and P4A tolerance class provide the accuracy needed for repetitive tasks.

Medical vs Industrial: Where 71911 CD/P4ADGA Bearing Excels
In medical imaging devices, 71911 CD/P4ADGA Bearing’s precision and low friction are crucial for smooth operation. Industrial applications like pumps and compressors benefit from its high dynamic load capacity and temperature resistance.

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