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Super Precision Angular Contact Ball Bearings 71911 ACD/HCP4ATBTB

Super Precision Angular Contact Ball Bearings 71911 ACD/HCP4ATBTB

The 71911 ACD/HCP4ATBTB is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from chrome steel for durability. It handles radial loads up to 8932 lbf and spins smoothly at speeds up to 34,000 RPM.

With a 25° contact angle and ceramic balls, it offers low friction and high accuracy. The phenolic cage ensures quiet operation and long service life, even in demanding conditions.

This bearing comes in a matched set of three, preloaded for light performance. Ideal for high-speed applications like machine tool spindles or precision instruments.

Operating in temperatures from -30°C to 110°C, it’s lubricated for easy maintenance. Weighing 0.46kg, it’s a reliable choice for precision engineering needs.

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Product Parameters

  • Part Number 71911 ACD/HCP4ATBTB
  • 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 39 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 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 8932 lbf
  • Static Radial Load 9338 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.46 kg
  • Price（$） 547.623
Super Precision Angular Contact Ball Bearings 71911 ACD/HCP4ATBTB dimension drawing
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Features

Performance Features of 71911 ACD/HCP4ATBTB Bearing

71911 ACD/HCP4ATBTB Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage ensures smooth operation at high speeds, up to 34,000 rpm.
This bearing is preloaded for light applications, providing consistent performance.

With a dynamic radial load capacity of 8932 lbf, it handles demanding conditions reliably.
The open design allows for easy lubrication, maintaining efficiency over time.

71911 ACD/HCP4ATBTB Bearing operates in temperatures from -30°C to 110°C, suitable for various environments.
Its matched arrangement of three bearings ensures balanced performance in complex setups.

Application

Where Is 71911 ACD/HCP4ATBTB Bearing Used?
71911 ACD/HCP4ATBTB Bearing is commonly found in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for high-speed operations.

In robotics, 71911 ACD/HCP4ATBTB Bearing provides stability for articulated arms, thanks to its matched arrangement and light preload. This setup enhances precision in repetitive movements.

For medical imaging devices, 71911 ACD/HCP4ATBTB Bearing’s phenolic cage and chrome steel rings offer durability and smooth performance. Its P4A tolerance class ensures reliability in critical applications.

In aerospace applications, 71911 ACD/HCP4ATBTB Bearing handles both radial and axial loads efficiently. The lubricated design and temperature range make it adaptable to various operating conditions.

Q&A

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