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Super Precision Angular Contact Ball Bearings S71911 ACD/P4ADBA

Super Precision Angular Contact Ball Bearings S71911 ACD/P4ADBA

The S71911 ACD/P4ADBA 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 25° contact angle and comes in a sealed, matched pair for extra stability.

This bearing handles radial loads up to 6660 lbf and spins smoothly at speeds up to 34,000 RPM, thanks to its phenolic cage and grease lubrication. Its extra-light preload ensures minimal friction during operation.

The sealed design keeps contaminants out, making it low-maintenance and durable. It performs reliably in temperatures ranging from -30°C to 110°C.

Ideal for high-precision applications like machine tool spindles or high-speed robotics, where accuracy and smooth rotation are essential. Weighing 0.37kg, it’s a robust yet lightweight solution for demanding setups.

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Product Parameters

  • Part Number S71911 ACD/P4ADBA
  • 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 Sealed
  • Matched Arrangement 2 bearings <> DB
  • 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 6660 lbf
  • Static Radial Load 6188 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.37 kg
Super Precision Angular Contact Ball Bearings S71911 ACD/P4ADBA dimension drawing
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Features

Performance Features of S71911 ACD/P4ADBA Bearing

S71911 ACD/P4ADBA Bearing is designed with a 25° contact angle, providing precise angular contact performance.
Its chrome steel rings and balls ensure durability and resistance to wear.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a dynamic radial load capacity of 6660 lbf, it handles demanding applications with ease.

S71911 ACD/P4ADBA Bearing operates at speeds up to 34,000 rpm, making it suitable for high-speed tasks.
Its sealed design and grease lubrication reduce maintenance needs and extend service life.

The extra light preload ensures minimal friction, improving efficiency.
Its P4A tolerance class guarantees high precision and reliable performance.

Application

Industrial Uses of S71911 ACD/P4ADBA Bearing
S71911 ACD/P4ADBA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction keeps contaminants out, extending service life in demanding workshop environments.

How Does S71911 ACD/P4ADBA Bearing Improve Performance?
In automotive applications, S71911 ACD/P4ADBA Bearing enhances wheel hub performance with its extra light preload and 25° contact angle. The matched bearing arrangement provides stability during high-speed cornering.

Perfect Fit for Automation: S71911 ACD/P4ADBA Bearing
S71911 ACD/P4ADBA Bearing works well in robotic arms, offering smooth movement thanks to its phenolic cage and grease lubrication. The P4A tolerance class ensures consistent precision in repetitive tasks.

Medical vs Industrial: Where S71911 ACD/P4ADBA Bearing Excels
For medical imaging devices, S71911 ACD/P4ADBA Bearing delivers quiet operation crucial for patient comfort. In industrial settings, its chrome steel construction handles radial loads in pumps and compressors reliably.

Where Is S71911 ACD/P4ADBA Bearing Used?
You’ll find S71911 ACD/P4ADBA Bearing in 3D printers, where its low friction maintains print head accuracy. The temperature range from -30°C to 110°C makes it suitable for various operating conditions.

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