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Super Precision Angular Contact Ball Bearings 71911 ACD/P4ADGB

Super Precision Angular Contact Ball Bearings 71911 ACD/P4ADGB

The 71911 ACD/P4ADGB is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and is designed for high-speed operations up to 34,000 RPM.

Its open design and phenolic cage ensure smooth performance, while the universal matching allows flexible arrangements like back-to-back or face-to-face. The bearing handles dynamic radial loads up to 6660 lbf and static loads up to 6188 lbf.

This model is interchangeable with SKF bearings, making it a reliable choice for replacements. Ideal for precision applications like machine tools or spindles where accuracy and speed are crucial.

Weighing just 0.36kg, it’s lightweight yet robust for its size. Compliant with P4A tolerance class, it offers exceptional precision and reliability in demanding environments.

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Product Parameters

  • Part Number 71911 ACD/P4ADGB
  • 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 25°
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 6660 lbf
  • Static Radial Load 6188 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 ACD/P4ADGB dimension drawing
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Features

How Does 71911 ACD/P4ADGB Bearing Achieve Super Precision?

71911 ACD/P4ADGB Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
The universal matching design allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

With a dynamic radial load capacity of 6660 lbf, it handles demanding operations smoothly.
The phenolic cage ensures stability and reduces friction during high-speed rotations.

Its P4A tolerance class guarantees exceptional accuracy for precision machinery.
The chrome steel construction provides durability while maintaining performance from -30°C to 110°C.

Lubricated for longevity, it reaches speeds up to 34,000 rpm without compromising reliability.
The 23-ball design distributes loads evenly, enhancing operational smoothness.

Application

Industrial Uses of 71911 ACD/P4ADGB Bearing
71911 ACD/P4ADGB Bearing is commonly used in high-speed machine tools, where its precision and light preload ensure smooth operation. The 25° contact angle makes it suitable for handling combined radial and axial loads efficiently.

In automotive applications, 71911 ACD/P4ADGB Bearing supports components like electric motors and gearboxes, offering reliable performance under demanding conditions. Its universal matching design allows for flexible installation in various configurations.

For automation systems, 71911 ACD/P4ADGB Bearing is ideal for robotic arms and CNC machinery, thanks to its high-speed capability and phenolic cage. The P4A tolerance class ensures consistent accuracy in repetitive tasks.

Medical imaging devices benefit from 71911 ACD/P4ADGB Bearing’s low noise and vibration characteristics. The chrome steel construction provides durability in critical environments where reliability is essential.

In consumer electronics, 71911 ACD/P4ADGB Bearing can be found in high-performance printers and scanners. Its compact size and precision make it a practical choice for space-constrained applications.

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