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Super Precision Angular Contact Ball Bearings 71920 CD/P4ATGA

Super Precision Angular Contact Ball Bearings 71920 CD/P4ATGA

The 71920 CD/P4ATGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. Its 15° contact angle and extra-light preload ensure smooth operation under radial loads up to 29250 lbf.

Designed for high-speed applications, it can handle up to 16000 RPM while maintaining stability. The open seal and phenolic cage make it easy to maintain and suitable for various lubrication methods.

This bearing comes in a matched set of three, offering flexibility for back-to-back, face-to-face, or tandem arrangements. Ideal for machine tools or spindles where precision and speed are crucial.

Weighing 2.4kg, it operates efficiently in temperatures from -30°C to 110°C. Its P4A tolerance class ensures reliable performance in demanding industrial environments.

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Product Parameters

  • Part Number 71920 CD/P4ATGA
  • 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 60 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 3
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 29250 lbf
  • Static Radial Load 45000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 2.4 kg
Super Precision Angular Contact Ball Bearings 71920 CD/P4ATGA dimension drawing
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Features

Performance Features of 71920 CD/P4ATGA Bearing

71920 CD/P4ATGA Bearing is designed with a 15° contact angle, optimised for handling combined radial and axial loads.
Its universal matching capability allows flexible arrangements like back-to-back or face-to-face configurations.

The chrome steel construction ensures durability, while the phenolic cage reduces friction and noise.
With a dynamic radial load capacity of 29,250 lbf, it performs reliably in high-precision applications.

71920 CD/P4ATGA Bearing operates smoothly at speeds up to 16,000 rpm, thanks to its extra-light preload.
Its P4A tolerance class guarantees precision, making it suitable for demanding industrial uses.

The open design and lubrication ensure consistent performance within a temperature range of -30°C to 110°C.
This bearing’s matched set of three enhances stability and load distribution in complex setups.

Application

Industrial Uses of 71920 CD/P4ATGA Bearing
71920 CD/P4ATGA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.

In aerospace applications, 71920 CD/P4ATGA Bearing supports critical components like turbine shafts, thanks to its extra-light preload and universal matching capability. Its chrome steel construction handles both radial and axial loads efficiently.

For robotics, 71920 CD/P4ATGA Bearing excels in articulated arms, providing smooth movement and durability. The P4A tolerance class ensures consistent performance in automated systems.

Where Is 71920 CD/P4ATGA Bearing Used?
You’ll find 71920 CD/P4ATGA Bearing in medical imaging devices, where its precision and low friction are essential. The lubricated design also extends its lifespan in continuous-use environments.

In automotive testing equipment, 71920 CD/P4ATGA Bearing offers reliable performance under varying loads. Its universal matching feature simplifies installation in complex setups.

Built for Heavy-Duty Use: 71920 CD/P4ATGA Bearing
71920 CD/P4ATGA Bearing handles heavy loads in industrial pumps, with its dynamic radial load capacity of 29250 lbf. The open seal type allows for easy lubrication maintenance.

In wind turbine gearboxes, 71920 CD/P4ATGA Bearing’s temperature range of -30°C to 110°C ensures stability in harsh conditions. Its tandem arrangement option provides flexibility in design.

Automotive vs Aerospace: Applications of 71920 CD/P4ATGA Bearing
In automotive transmissions, 71920 CD/P4ATGA Bearing supports high-speed shafts with minimal vibration. The 15° contact angle optimises load distribution.

For aerospace actuators, 71920 CD/P4ATGA Bearing’s precision and matched set configuration enhance reliability. Its weight of 2.4 kg balances strength and portability.

Q&A

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