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Super Precision Angular Contact Ball Bearings 71920 FEGA/HCPA9A

Super Precision Angular Contact Ball Bearings 71920 FEGA/HCPA9A

The 71920 FEGA/HCPA9A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from chrome steel for durability. It handles radial loads up to 8775 lbf and spins smoothly at speeds up to 16,000 RPM.

Its 18° contact angle and ceramic balls reduce friction, while the phenolic cage ensures quiet operation. The extra light preload (Class A) makes it ideal for high-precision applications.

This open-design bearing is lubricated and works in temperatures from -30°C to 110°C. It can be paired in back-to-back, face-to-face, or tandem arrangements for versatile use.

Weighing 0.65kg, it’s suitable for machine tools or high-speed spindles where accuracy is key. Interchangeable with SKF bearings, it’s a reliable choice for replacements.

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Product Parameters

  • Part Number 71920 FEGA/HCPA9A
  • 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 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 24
  • Contact Angle 18°
  • Tolerance Class PA9A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • 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 8775 lbf
  • Static Radial Load 6975 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 0.65 kg
Super Precision Angular Contact Ball Bearings 71920 FEGA/HCPA9A dimension drawing
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Features

Performance Features of 71920 FEGA/HCPA9A Bearing

71920 FEGA/HCPA9A Bearing features a precision 18° contact angle, optimised for angular contact load distribution.
The ceramic balls and chrome steel rings ensure smooth operation even at high speeds up to 16,000 rpm.

Its phenolic cage maintains ball alignment, reducing friction and wear during operation.
With a dynamic radial load capacity of 8775 lbf, it handles demanding applications with ease.

The extra light preload (Class A) enhances precision, making it suitable for high-accuracy tasks.
Its universal matching capability allows flexible arrangements like back-to-back or face-to-face mounting.

Application

Key Fields for 71920 FEGA/HCPA9A Bearing
71920 FEGA/HCPA9A Bearing is commonly used in high-speed machine tools, where its precision and ceramic balls reduce friction for smoother operation. The open design allows for efficient lubrication, extending service life in demanding conditions.

In automotive applications, 71920 FEGA/HCPA9A Bearing supports components like electric motors and gearboxes, handling angular loads with ease. Its phenolic cage ensures quiet performance, ideal for modern vehicle systems.

For robotics, 71920 FEGA/HCPA9A Bearing’s extra-light preload enhances accuracy in articulated arms and automated guides. The PA9A tolerance class makes it suitable for tasks requiring meticulous positioning.

Medical imaging devices benefit from 71920 FEGA/HCPA9A Bearing’s consistent performance and low heat generation. The chrome steel rings and ceramic balls provide reliable operation in sensitive environments.

In aerospace systems, 71920 FEGA/HCPA9A Bearing’s lightweight construction and high-speed capability are advantageous. Its universal matching feature allows flexible configurations for various load requirements.

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