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Super Precision Angular Contact Ball Bearings 71911 ACDTP/P4B

Super Precision Angular Contact Ball Bearings 71911 ACDTP/P4B

The 71911 ACDTP/P4B is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It supports radial loads up to 4095 lbf and operates smoothly at speeds up to 15,000 RPM.

With a 25° contact angle and open design, it offers excellent performance in high-speed applications. The phenolic cage ensures durability and reduces friction for smoother rotation.

This bearing is available with preload and matched arrangements, making it versatile for precise setups. Ideal for machine tools, spindles, or other high-precision equipment requiring tight tolerances.

Weighing just 0.18kg, it’s lightweight yet robust. Compliant with P4 (ABEC-7) standards, it ensures reliable performance in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71911 ACDTP/P4B
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.007mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 23
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4095 lbf
  • Static Radial Load 3082 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.18 kg
  • Price（$） 439.866
Super Precision Angular Contact Ball Bearings 71911 ACDTP/P4B dimension drawing
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Features

Performance Features of 71911 ACDTP/P4B Bearing

71911 ACDTP/P4B Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.
With a dynamic radial load capacity of 4095 lbf, it handles demanding conditions reliably.
The P4 tolerance class guarantees precision, making it suitable for high-speed operations up to 15,000 rpm.

Application

How Does 71911 ACDTP/P4B Bearing Improve Performance?
71911 ACDTP/P4B Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The phenolic cage reduces friction, making it suitable for high-speed operations.

In robotics, 71911 ACDTP/P4B Bearing supports smooth movement in articulated arms, thanks to its matched arrangement and preload options. The P4 tolerance class guarantees consistent performance in automated systems.

For medical imaging devices, 71911 ACDTP/P4B Bearing’s chrome steel construction provides durability and reliability. Its open design allows for easy lubrication, ensuring long service life in critical applications.

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