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Super Precision Angular Contact Ball Bearings 71911 ACB/HCP4ADT

Super Precision Angular Contact Ball Bearings 71911 ACB/HCP4ADT

The 71911 ACB/HCP4ADT 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 matched set of two bearings for balanced performance.

This bearing handles radial loads up to 3442 lbf and achieves speeds of 34,000 RPM, thanks to its ceramic balls and phenolic cage. Its open design allows for easy lubrication, ensuring smooth operation.

Preloaded for precision, it’s ideal for high-speed applications like machine tool spindles or precision instruments. The P4A tolerance class guarantees exceptional accuracy.

Weighing 0.34kg, it operates efficiently in temperatures from -30°C to 110°C. Compatible with SKF bearings, it’s a reliable choice for demanding setups.

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Product Parameters

  • Part Number 71911 ACB/HCP4ADT
  • 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 5.556 mm
  • Ball Qty 28
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings << DT
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 3442 lbf
  • Static Radial Load 3442 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.34 kg
Super Precision Angular Contact Ball Bearings 71911 ACB/HCP4ADT dimension drawing
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Features

Why Choose 71911 ACB/HCP4ADT Bearing for Precision Tasks?

71911 ACB/HCP4ADT Bearing features a 25° contact angle, ideal for high-precision angular contact applications.
The ceramic balls and chrome steel rings ensure smooth operation and reduced friction.

With a dynamic radial load capacity of 3442 lbf, it handles demanding tasks efficiently.
Its phenolic cage maintains ball alignment, enhancing durability and performance.

The bearing operates at speeds up to 34,000 rpm, suitable for high-speed machinery.
Its P4A tolerance class guarantees consistent accuracy in precision engineering.

Application

Industrial Uses of 71911 ACB/HCP4ADT Bearing
71911 ACB/HCP4ADT Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The 25° contact angle ensures stable performance under combined radial and axial loads.

In automotive applications, 71911 ACB/HCP4ADT Bearing fits well in precision gearboxes and electric motor systems, thanks to its P4A tolerance class. The matched arrangement with preload enhances rigidity, making it suitable for demanding drivetrain components.

For automation equipment, 71911 ACB/HCP4ADT Bearing’s open design allows easy lubrication, which is essential for robotic arms and CNC machines. Its high-speed capability (up to 34,000 rpm) ensures smooth operation in continuous production lines.

Medical imaging devices benefit from 71911 ACB/HCP4ADT Bearing’s consistent performance, as the chrome steel rings and ceramic balls provide quiet, vibration-free rotation. The phenolic cage also resists wear in sterile environments.

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