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Super Precision Angular Contact Ball Bearings 71911 ACB/HCP4A

Super Precision Angular Contact Ball Bearings 71911 ACB/HCP4A

The 71911 ACB/HCP4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel and ceramic balls. It handles radial loads up to 2106 lbf and operates smoothly at speeds up to 38,000 RPM.

Its 25° contact angle and phenolic cage ensure stable performance under angular loads, while the open design allows for easy lubrication. The bearing is suitable for temperatures ranging from -30°C to 110°C.

This model is interchangeable with SKF bearings and comes in a P4 tolerance class for high precision. Ideal for applications like machine tool spindles or high-speed robotics where accuracy is crucial.

Weighing just 0.17kg, it’s lightweight yet durable. Available in matched sets for paired mounting, making it a versatile choice for demanding setups.

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Product Parameters

  • Part Number 71911 ACB/HCP4A
  • 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 5.556 mm
  • Ball Qty 28
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2106 lbf
  • Static Radial Load 1721 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 38000 rpm
  • Weight 0.17 kg
  • Price（$） 439.812
Super Precision Angular Contact Ball Bearings 71911 ACB/HCP4A dimension drawing
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Features

Why Choose 71911 ACB/HCP4A Bearing for Precision Tasks?

71911 ACB/HCP4A Bearing features a 25° contact angle, ideal for high-precision angular contact applications.
Its chrome steel rings and ceramic balls reduce friction, enhancing performance in demanding conditions.

With a dynamic radial load capacity of 2106 lbf, it handles heavy loads while maintaining accuracy.
The phenolic cage ensures smooth operation, even at high speeds up to 38,000 rpm.

Designed for matched arrangements, 71911 ACB/HCP4A Bearing offers flexibility in complex setups.
Its P4 tolerance class guarantees consistent precision, making it suitable for critical applications.

Application

Key Fields for 71911 ACB/HCP4A Bearing
71911 ACB/HCP4A Bearing is commonly used in high-speed machine tools, where its precision and ceramic balls reduce friction for smoother operation. The 25° contact angle makes it ideal for handling combined radial and axial loads.

In robotics, 71911 ACB/HCP4A Bearing ensures accurate movement in robotic arms, thanks to its P4 tolerance class. The phenolic cage also helps in reducing vibration during high-speed rotations.

For aerospace applications, 71911 ACB/HCP4A Bearing’s lightweight design and high-speed capability make it suitable for aircraft components. Its chrome steel rings provide the necessary strength for demanding conditions.

Automotive enthusiasts appreciate 71911 ACB/HCP4A Bearing in performance gearboxes, where its ceramic balls enhance durability. The open design allows for easy lubrication, extending the bearing’s service life.

In medical imaging devices, 71911 ACB/HCP4A Bearing’s precision ensures smooth operation of rotating parts. The ceramic balls also reduce heat generation, which is crucial for sensitive equipment.

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