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Super Precision Angular Contact Ball Bearings 71920 CE/P4ADBB

Super Precision Angular Contact Ball Bearings 71920 CE/P4ADBB

The 71920 CE/P4ADBB is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and comes in a matched pair for duplex back-to-back mounting.

This bearing handles radial loads up to 14332 lbf and operates smoothly at speeds up to 16000 RPM. Its phenolic cage ensures durability and reduced friction, while the open design allows for easy lubrication.

With a light preload (Class B), it offers excellent stability for high-precision applications. The P4A tolerance class guarantees tight dimensional accuracy, making it ideal for machine tools or spindle assemblies.

Weighing 1.54kg, this bearing is robust yet manageable for its size. It works reliably in temperatures from -30°C to 110°C and is interchangeable with SKF models for convenient replacements.

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Product Parameters

  • Part Number 71920 CE/P4ADBB
  • 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 24
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 14332 lbf
  • Static Radial Load 14175 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 1.54 kg
Super Precision Angular Contact Ball Bearings 71920 CE/P4ADBB dimension drawing
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Features

How Does 71920 CE/P4ADBB Bearing Achieve Super Precision?

71920 CE/P4ADBB Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
The matched arrangement of two bearings ensures balanced load distribution and smooth operation.

With a dynamic radial load capacity of 14332 lbf, it handles demanding tasks efficiently.
The phenolic cage maintains ball alignment, reducing friction and noise during high-speed rotation.

Its P4A tolerance class guarantees exceptional accuracy, making it suitable for precision machinery.
The chrome steel construction provides durability while operating at speeds up to 16,000 rpm.

Designed for temperatures from -30°C to 110°C, it performs reliably in various environments.
The preloaded light class B configuration ensures consistent performance with minimal maintenance.

Application

Industrial Uses of 71920 CE/P4ADBB Bearing
71920 CE/P4ADBB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability under radial and axial loads.

In automotive applications, 71920 CE/P4ADBB Bearing supports gearbox systems, offering smooth performance at high speeds. Its phenolic cage reduces friction, making it suitable for demanding driving conditions.

For robotics, 71920 CE/P4ADBB Bearing is ideal for articulated arms, thanks to its light preload and consistent torque. The open seal design allows for easy lubrication, extending service life in automated systems.

Medical imaging devices benefit from 71920 CE/P4ADBB Bearing’s precision, ensuring quiet and vibration-free operation. The chrome steel construction maintains reliability in sterile environments.

In aerospace, 71920 CE/P4ADBB Bearing is used in flight control systems, where its P4A tolerance class meets strict performance standards. The high dynamic load capacity handles the stresses of frequent takeoffs and landings.

Q&A

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