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Super Precision Angular Contact Ball Bearings 71911 CD/HCP4A

Super Precision Angular Contact Ball Bearings 71911 CD/HCP4A

The 71911 CD/HCP4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, designed for high-speed applications. It features a 15° contact angle and is made from durable chrome steel with ceramic balls for smooth operation.

This bearing handles radial loads up to 4388 lbf and can reach speeds of 30,000 RPM, making it suitable for demanding tasks. Its phenolic cage ensures stability and longevity, even under continuous use.

The open design allows for easy lubrication, while the P4 tolerance class guarantees precise performance. Ideal for machine tools or high-speed spindles where accuracy is crucial.

Weighing just 0.15kg, it’s lightweight yet robust. The ceramic balls reduce friction, helping it stay cool in temperatures from -30°C to 110°C. A reliable choice for precision engineering applications.

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Product Parameters

  • Part Number 71911 CD/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 7.938 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 4388 lbf
  • Static Radial Load 3285 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 30000 rpm
  • Weight 0.15 kg
  • Price（$） 44.64
Super Precision Angular Contact Ball Bearings 71911 CD/HCP4A dimension drawing
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Features

Performance Features of 71911 CD/HCP4A Bearing

71911 CD/HCP4A Bearing is designed with a 15° contact angle, offering precise angular contact performance.
Its chrome steel rings and ceramic balls reduce friction, enhancing efficiency in high-speed applications.

The phenolic cage ensures smooth operation, even at speeds up to 30,000 rpm.
With a dynamic radial load capacity of 4388 lbf, it handles demanding tasks with ease.

71911 CD/HCP4A Bearing operates in temperatures from -30° to 110°C, suitable for various environments.
Its P4 tolerance class guarantees high precision, making it ideal for critical applications.

The open design allows for easy lubrication, maintaining optimal performance over time.
Weighing just 0.15 kg, it combines strength with lightweight convenience.

Application

Key Fields for 71911 CD/HCP4A Bearing
71911 CD/HCP4A Bearing works well in high-speed machine tools, where its ceramic balls reduce friction and heat buildup. The 15° contact angle helps manage both radial and axial loads smoothly.

In robotics, 71911 CD/HCP4A Bearing ensures precise movement in joints and arms, thanks to its P4 tolerance class. The phenolic cage keeps it lightweight yet durable for continuous operation.

For medical imaging devices, 71911 CD/HCP4A Bearing’s open design allows easy lubrication, maintaining accuracy in sensitive equipment. Its chrome steel rings provide long-lasting performance in sterile environments.

Automotive applications like electric motor shafts benefit from 71911 CD/HCP4A Bearing’s balanced load handling. The metric sizing fits seamlessly into European and Asian vehicle designs.

In 3D printers, 71911 CD/HCP4A Bearing supports smooth linear motion with minimal vibration. The ceramic balls ensure quiet operation, ideal for home or office use.

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