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Super Precision Angular Contact Ball Bearings 71920 CB/HCP4ADGA

Super Precision Angular Contact Ball Bearings 71920 CB/HCP4ADGA

The 71920 CB/HCP4ADGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel. Its 15° contact angle and ceramic balls ensure smooth operation under angular loads.

With a dynamic radial load capacity of 7898 lbf, it spins efficiently at speeds up to 16,000 RPM. The phenolic cage and extra-light preload (Class A) reduce friction, making it ideal for high-speed applications.

This open-design bearing comes lubricated and works in temperatures from -30°C to 110°C. It’s part of a matched set of two, suitable for universal arrangements like back-to-back or face-to-face mounting.

Weighing 1.6kg, it’s a robust choice for precision machinery like spindles or CNC equipment. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 71920 CB/HCP4ADGA
  • 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 7.938 mm
  • Ball Qty 37
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 7898 lbf
  • Static Radial Load 10125 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 1.6 kg
Super Precision Angular Contact Ball Bearings 71920 CB/HCP4ADGA dimension drawing
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Features

Performance Features of 71920 CB/HCP4ADGA Bearing

71920 CB/HCP4ADGA Bearing is crafted with chrome steel rings and ceramic balls, offering high precision and durability.

Its 15° contact angle ensures optimal performance in angular contact applications, handling dynamic radial loads up to 7898 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing speed capabilities up to 16,000 rpm.

With universal matching and extra light preload, it adapts seamlessly to various configurations like back-to-back or face-to-face arrangements.

Application

Essential Roles of 71920 CB/HCP4ADGA Bearing
71920 CB/HCP4ADGA Bearing is widely used in high-precision machine tools, where its 15° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it suitable for high-speed spindle applications.

In robotics, 71920 CB/HCP4ADGA Bearing supports articulated arms, providing smooth movement and long service life. Its universal matching design allows flexible arrangement in tight spaces.

For aerospace components, 71920 CB/HCP4ADGA Bearing’s phenolic cage and chrome steel rings offer reliability in demanding conditions. The P4A tolerance class guarantees consistent performance in critical systems.

Automotive testing equipment benefits from 71920 CB/HCP4ADGA Bearing’s extra-light preload, ensuring precise measurements. The lubricated design reduces maintenance needs in continuous operation.

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