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Super Precision Angular Contact Ball Bearings 71917 CD/HCP4A

Super Precision Angular Contact Ball Bearings 71917 CD/HCP4A

The 71917 CD/HCP4A is a super precision angular contact ball bearing with an 85mm bore and 120mm outer diameter, designed for high-speed applications. Its 15° contact angle efficiently handles both radial and axial loads up to 10395 lbf.

Made from chrome steel rings and ceramic balls, it offers low friction and long service life. The phenolic cage ensures smooth operation at speeds up to 20,000 RPM.

This open-design bearing comes pre-lubricated and works in temperatures from -30°C to 110°C. Its P4 tolerance class (ABEC-7) guarantees exceptional running accuracy.

Ideal for machine tool spindles or high-precision equipment where speed and accuracy matter. Weighing 0.45kg, it’s a robust yet compact solution for demanding applications.

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Product Parameters

  • Part Number 71917 CD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 85 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 120 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 25
  • 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 10395 lbf
  • Static Radial Load 10800 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 20000 rpm
  • Weight 0.45 kg
  • Price（$） 911.664
Super Precision Angular Contact Ball Bearings 71917 CD/HCP4A dimension drawing
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Features

Engineered for Precision: 71917 CD/HCP4A Bearing

71917 CD/HCP4A Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and ceramic balls ensure smooth operation with minimal friction.

The phenolic cage maintains ball alignment, enhancing durability and performance.
With a dynamic radial load capacity of 10,395 lbf, it handles demanding tasks reliably.

71917 CD/HCP4A Bearing operates at speeds up to 20,000 rpm, balancing speed and stability.
Its P4 tolerance class ensures consistent precision in critical applications.

The open design allows for easy lubrication, reducing maintenance needs.
71917 CD/HCP4A Bearing performs well in temperatures ranging from -30° to 110°C.

Application

Industrial Uses of 71917 CD/HCP4A Bearing
71917 CD/HCP4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for continuous operation.

In automotive applications, 71917 CD/HCP4A Bearing supports components like turbochargers and electric motors, where its high-speed capability and load handling are essential. The P4 tolerance class ensures consistent performance under demanding conditions.

For robotics, 71917 CD/HCP4A Bearing’s lightweight phenolic cage and ceramic balls provide smooth movement in robotic arms. Its open design allows for easy lubrication, extending service life in automated systems.

Medical imaging devices benefit from 71917 CD/HCP4A Bearing’s low vibration and high precision. The chrome steel rings and ceramic balls ensure reliable performance in sensitive equipment like MRI scanners.

In aerospace applications, 71917 CD/HCP4A Bearing’s ability to handle high speeds and angular loads makes it ideal for avionics and flight control systems. The wide temperature range ensures reliability in varying conditions.

Q&A

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