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Super Precision Angular Contact Ball Bearings 71920 CD/P4ADBA

Super Precision Angular Contact Ball Bearings 71920 CD/P4ADBA

The 71920 CD/P4ADBA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 21938 lbf and operates smoothly at speeds up to 16000 RPM.

Its 15° contact angle and matched arrangement of two bearings provide excellent stability for angular loads. The phenolic cage ensures quiet and efficient performance, even under high speeds.

This bearing is lubricated for easy maintenance and works in temperatures from -30°C to 110°C. Its P4A tolerance class guarantees precise and reliable operation.

Ideal for applications like machine tool spindles or high-speed equipment where precision is key. Weighing 1.6kg, it’s a robust choice for demanding environments. Interchangeable with SKF bearings for convenient replacements.

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Product Parameters

  • Part Number 71920 CD/P4ADBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 21938 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 1.6 kg
  • Price（$） 359.136
Super Precision Angular Contact Ball Bearings 71920 CD/P4ADBA dimension drawing
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Features

Why Choose 71920 CD/P4ADBA Bearing for Precision Tasks?

71920 CD/P4ADBA Bearing features a 15° contact angle, optimised for precise angular contact applications.
Its chrome steel construction ensures durability and reliable performance under high radial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 16,000 rpm, it delivers efficiency in high-speed scenarios.

71920 CD/P4ADBA Bearing’s extra light preload design minimises vibration, ideal for precision machinery.
Its matched arrangement of two bearings provides stability and balanced load distribution.

The open seal type allows for easy lubrication, ensuring consistent performance over time.
Operating between -30°C to 110°C, it adapts well to varying temperature conditions.

Application

Industrial Uses of 71920 CD/P4ADBA Bearing
71920 CD/P4ADBA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings enhances stability in demanding industrial environments.

In automotive applications, 71920 CD/P4ADBA Bearing supports high-speed components like turbochargers and transmission systems. Its extra light preload helps reduce friction, improving overall efficiency.

For automation and robotics, 71920 CD/P4ADBA Bearing provides reliable performance in robotic arms and CNC machines. The phenolic cage material offers durability while maintaining smooth operation at high speeds.

Medical imaging devices benefit from 71920 CD/P4ADBA Bearing’s precision and low noise characteristics. Its chrome steel construction ensures long-term reliability in critical healthcare equipment.

In consumer electronics, 71920 CD/P4ADBA Bearing can be found in high-end printers and precision instruments. The open seal type allows for easy lubrication, extending the bearing’s service life.

Q&A

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