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Super Precision Angular Contact Ball Bearings 71911 ACD/P4AQBCB

Super Precision Angular Contact Ball Bearings 71911 ACD/P4AQBCB

The 71911 ACD/P4AQBCB is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 10980 lbf and operates smoothly at speeds up to 34000 RPM.

Its 25° contact angle and matched set of four bearings provide excellent stability for angular loads. The phenolic cage ensures quiet operation and durability, while the open design allows for easy lubrication.

This bearing is ideal for high-precision applications like machine tool spindles or high-speed robotics. With a temperature range of -30°C to 110°C, it performs reliably in various environments.

Weighing 0.72kg, it’s a robust yet manageable component for demanding setups. Compliant with P4A tolerance standards, it’s a top choice for precision engineering needs.

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Product Parameters

  • Part Number 71911 ACD/P4AQBCB
  • 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 52 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 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 10980 lbf
  • Static Radial Load 12375 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.72 kg
Super Precision Angular Contact Ball Bearings 71911 ACD/P4AQBCB dimension drawing
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Features

Performance Features of 71911 ACD/P4AQBCB Bearing

71911 ACD/P4AQBCB Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 10,980 lbf.

Its phenolic cage ensures smooth operation at high speeds, reaching up to 34,000 rpm.
The matched arrangement of four bearings provides stability and consistent performance.

71911 ACD/P4AQBCB Bearing operates efficiently in temperatures from -30°C to 110°C.
With a P4A tolerance class, it delivers high precision for demanding industrial tasks.

Application

Industrial Uses of 71911 ACD/P4AQBCB Bearing
71911 ACD/P4AQBCB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched set of four bearings provides stability in demanding industrial environments.

Where Is 71911 ACD/P4AQBCB Bearing Used?
In automotive applications, 71911 ACD/P4AQBCB Bearing supports high-speed components like turbochargers and transmission systems. Its light preload and phenolic cage contribute to smooth performance under radial and angular loads.

Perfect Fit for Automation: 71911 ACD/P4AQBCB Bearing
For robotic arms and automated systems, 71911 ACD/P4AQBCB Bearing offers reliable motion control with minimal friction. The P4A tolerance class ensures consistent precision in repetitive tasks.

Medical vs Industrial: Where 71911 ACD/P4AQBCB Bearing Excels
In medical imaging devices, 71911 ACD/P4AQBCB Bearing’s chrome steel construction provides durability and quiet operation. Industrial applications benefit from its high dynamic radial load capacity in heavy machinery.

How Does 71911 ACD/P4AQBCB Bearing Support High-Speed Operations?
With a maximum speed of 34,000 rpm, 71911 ACD/P4AQBCB Bearing is ideal for applications like dental drills and small turbines. The lubricated design reduces wear during prolonged use.

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