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Super Precision Angular Contact Ball Bearings 71920 CD/HCP4ADGA

Super Precision Angular Contact Ball Bearings 71920 CD/HCP4ADGA

The 71920 CD/HCP4ADGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from chrome steel for durability. Its 15° contact angle and ceramic balls ensure smooth operation under high speeds up to 16,000 RPM.

This bearing handles radial loads up to 21938 lbf and comes pre-lubricated for immediate use. The phenolic cage and universal matching design allow flexible arrangements like back-to-back or face-to-face setups.

With a tight P4A tolerance class, it offers reliable performance in temperatures from -30°C to 110°C. Ideal for precision machinery like CNC spindles or high-speed robotics where accuracy is key.

Weighing 1.34kg, it’s part of a matched set of two bearings, ensuring balanced load distribution. Interchangeable with SKF models for easy replacement.

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Product Parameters

  • Part Number 71920 CD/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 12.7 mm
  • Ball Qty 26
  • 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 21938 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 1.34 kg
  • Price（$） 653.598
Super Precision Angular Contact Ball Bearings 71920 CD/HCP4ADGA dimension drawing
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Features

Performance Features of 71920 CD/HCP4ADGA Bearing

71920 CD/HCP4ADGA Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.

With a dynamic radial load capacity of 21938 lbf, it handles demanding conditions reliably.
Its phenolic cage ensures stable performance at high speeds, up to 16,000 rpm.

The universal matching design allows flexible arrangements like back-to-back or face-to-face setups.
This makes 71920 CD/HCP4ADGA Bearing suitable for precision machinery requiring tight tolerances.

Application

Common Applications of 71920 CD/HCP4ADGA Bearing
71920 CD/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 ideal for high-speed spindle applications.

In aerospace components, 71920 CD/HCP4ADGA Bearing provides reliable performance in gearbox systems, thanks to its phenolic cage and universal matching design. The extra-light preload also minimises vibration in critical flight operations.

For robotics, 71920 CD/HCP4ADGA Bearing’s P4A tolerance class supports precise movement in articulated arms and joints. Its chrome steel rings and ceramic balls offer durability in continuous operation environments.

Where Is 71920 CD/HCP4ADGA Bearing Used?
You’ll often find 71920 CD/HCP4ADGA Bearing in medical imaging devices, where its low friction and high-speed capabilities are essential. The open design allows for easy lubrication, ensuring long service life.

In industrial automation, 71920 CD/HCP4ADGA Bearing is a go-to for CNC machinery, handling both radial and thrust loads effortlessly. The matched set configuration simplifies installation in complex systems.

Built for Heavy-Duty Use: 71920 CD/HCP4ADGA Bearing
71920 CD/HCP4ADGA Bearing excels in wind turbine yaw systems, where its dynamic load capacity handles variable forces. The phenolic cage resists corrosion, even in harsh outdoor conditions.

For electric vehicle motors, 71920 CD/HCP4ADGA Bearing’s ceramic balls reduce energy loss, improving efficiency. Its temperature range also ensures stability under demanding driving conditions.

Automotive vs Aerospace: Applications of 71920 CD/HCP4ADGA Bearing
In automotive testing rigs, 71920 CD/HCP4ADGA Bearing’s precision supports accurate data collection. The universal matching design allows for flexible mounting in confined spaces.

For satellite mechanisms, 71920 CD/HCP4ADGA Bearing’s lightweight construction and high-speed tolerance are crucial. The ceramic balls also minimise outgassing in vacuum environments.

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