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Super Precision Angular Contact Ball Bearings 71930 CD/HCP4A

Super Precision Angular Contact Ball Bearings 71930 CD/HCP4A

The 71930 CD/HCP4A is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, designed for high-performance applications. Its 15° contact angle and ceramic balls ensure smooth operation under heavy radial loads up to 25650 lbf.

This bearing spins at speeds up to 11000 RPM, thanks to its phenolic cage and chrome steel rings. The open design allows for easy lubrication, while the P4 tolerance class guarantees exceptional accuracy.

Ideal for machine tools or high-speed spindles, it handles temperatures from -30°C to 110°C. Weighing 2.08kg, it’s robust yet suitable for precision engineering tasks. The bearing is interchangeable with SKF models, offering a reliable alternative.

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Product Parameters

  • Part Number 71930 CD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 150 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 28 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 19.05 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 25650 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 11000 rpm
  • Weight 2.08 kg
  • Price（$） 2127.852
Super Precision Angular Contact Ball Bearings 71930 CD/HCP4A dimension drawing
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Features

Performance Features of 71930 CD/HCP4A Bearing

71930 CD/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.
The phenolic cage ensures smooth operation, even at high speeds up to 11,000 rpm.
With a dynamic radial load capacity of 25,650 lbf, it delivers reliable performance in precision tasks.

How Is 71930 CD/HCP4A Bearing Engineered for Reliability?

71930 CD/HCP4A Bearing’s chrome steel rings and ceramic balls provide excellent wear resistance.
The phenolic cage maintains ball alignment, reducing operational noise and vibration.
Its P4 tolerance class ensures high precision, making it suitable for demanding applications.
With a static radial load capacity of 29,700 lbf, it handles heavy loads with ease.

Designed for Durability: 71930 CD/HCP4A Bearing

71930 CD/HCP4A Bearing features ceramic balls that reduce friction and extend service life.
The chrome steel rings offer superior strength, capable of withstanding high radial loads.
Its open design allows for easy lubrication, ensuring consistent performance.
Operating within a temperature range of -30° to 110°C, it adapts to various environments.

Steel vs Ceramic Bearings: Strengths of 71930 CD/HCP4A Bearing

71930 CD/HCP4A Bearing combines chrome steel rings with ceramic balls for optimal performance.
This hybrid design reduces friction and heat generation compared to all-steel bearings.
The ceramic balls also resist wear better, enhancing the bearing’s longevity.
With a maximum speed of 11,000 rpm, it excels in high-speed applications.

Application

Industrial Uses of 71930 CD/HCP4A Bearing
The 71930 CD/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup.
Its precision P4 tolerance ensures smooth operation in demanding industrial environments like CNC spindles.

Where Is 71930 CD/HCP4A Bearing Used?
You’ll often find 71930 CD/HCP4A Bearing in aerospace applications, such as helicopter gearboxes, thanks to its ability to handle both radial and axial loads.
The 15° contact angle provides excellent stability during high-speed rotations.

Built for Heavy-Duty Use: 71930 CD/HCP4A Bearing
This bearing excels in wind turbine yaw systems, where its chrome steel rings withstand harsh weather conditions.
The lubricated design ensures long service life even with continuous operation.

Automotive vs Aerospace: Applications of 71930 CD/HCP4A Bearing
In automotive testing equipment, 71930 CD/HCP4A Bearing offers precise measurements due to its ABEC-7 precision rating.
For satellite tracking systems, its ceramic balls maintain accuracy despite temperature fluctuations.

Key Fields for 71930 CD/HCP4A Bearing
Medical imaging devices benefit from 71930 CD/HCP4A Bearing’s smooth rotation and minimal vibration.
The phenolic cage makes it suitable for MRI machines where non-magnetic properties are essential.

Q&A

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