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Super Precision Angular Contact Ball Bearings 71911 CD/P4ADBG20

Super Precision Angular Contact Ball Bearings 71911 CD/P4ADBG20

The 71911 CD/P4ADBG20 is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 7020 lbf and spins smoothly at speeds up to 34,000 RPM.

Its 15° contact angle and matched arrangement (2 bearings) provide excellent stability under angular loads. The phenolic cage ensures quiet operation and long service life.

This bearing comes pre-lubricated and operates efficiently in temperatures from -30°C to 110°C. Ideal for high-precision applications like machine tool spindles or precision gearboxes.

Weighing 0.36kg, it meets P4A tolerance standards for exceptional accuracy. The open design allows for easy maintenance and relubrication when needed.

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Product Parameters

  • Part Number 71911 CD/P4ADBG20
  • 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 Available
  • 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/P4ADBG20 dimension drawing
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Features

Performance Features of 71911 CD/P4ADBG20 Bearing

71911 CD/P4ADBG20 Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 7020 lbf.

Its matched arrangement of two bearings ensures stability and precision in high-speed operations.
With a maximum speed of 34,000 rpm, it delivers reliable performance in demanding conditions.

The phenolic cage maintains ball alignment, reducing friction and extending service life.
Preload availability allows for fine-tuning, ensuring smooth operation in precision tasks.

71911 CD/P4ADBG20 Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its open design simplifies lubrication, making maintenance straightforward and cost-effective.

Application

How Does 71911 CD/P4ADBG20 Bearing Improve Performance?
71911 CD/P4ADBG20 Bearing is widely used in high-speed machine tools, where its 15° contact angle ensures smooth rotation under radial and axial loads. The matched arrangement of two bearings enhances stability, making it ideal for precision grinding applications.

In robotics, 71911 CD/P4ADBG20 Bearing supports articulated arms, providing reliable movement with minimal friction. Its phenolic cage reduces weight while maintaining strength, perfect for repetitive motion tasks.

For aerospace components, 71911 CD/P4ADBG20 Bearing’s P4A tolerance class delivers the accuracy needed in flight control systems. The chrome steel construction withstands extreme conditions without compromising performance.

Automotive testing equipment benefits from 71911 CD/P4ADBG20 Bearing’s ability to handle dynamic loads at speeds up to 34,000 rpm. The preload option ensures consistent performance in demanding test cycles.

Medical imaging devices rely on 71911 CD/P4ADBG20 Bearing for quiet, vibration-free operation. Its open design allows for easy lubrication, extending service life in critical healthcare applications.

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