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Super Precision Angular Contact Ball Bearings 71911 FEGA/HCP4AL

Super Precision Angular Contact Ball Bearings 71911 FEGA/HCP4AL

The 71911 FEGA/HCP4AL is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from chrome steel for durability. It features ceramic balls and a phenolic cage, ensuring smooth operation at high speeds up to 34,000 RPM.

Designed for angular contact loads, it handles dynamic radial loads up to 3442 lbf and static radial loads up to 2340 lbf. Its extra light preload (Class A) enhances precision, making it ideal for high-accuracy applications.

The open design allows easy lubrication, while the P4A tolerance class ensures consistent performance. Suitable for temperatures from -30°C to 110°C, it’s versatile for various environments.

This bearing is interchangeable with SKF models and comes in a universal matching set for back-to-back, face-to-face, or tandem arrangements. Perfect for precision machinery like spindles or CNC equipment. Weighing just 0.14kg, it’s lightweight yet robust.

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Product Parameters

  • Part Number 71911 FEGA/HCP4AL
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 21
  • Contact Angle 18°
  • Tolerance Class P4A
  • 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 3442 lbf
  • Static Radial Load 2340 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.14 kg
Super Precision Angular Contact Ball Bearings 71911 FEGA/HCP4AL dimension drawing
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Features

How Does 71911 FEGA/HCP4AL Bearing Reduce Friction?

71911 FEGA/HCP4AL Bearing features ceramic balls and chrome steel rings, significantly reducing friction during operation.
The phenolic cage ensures smooth ball movement, enhancing efficiency and reducing wear.

With a maximum speed of 34,000 rpm, it maintains performance in high-speed applications.
The open design allows for easy lubrication, ensuring consistent operation over time.

Its 18° contact angle provides optimal load distribution, minimising stress on the bearing.
This design makes it suitable for precision tasks requiring reliable and smooth performance.

Application

Super Precision Angular Contact Ball Bearings 71911 FEGA/HCP4AL are commonly used in high-speed machine spindles, where their 18° contact angle ensures smooth rotation under radial and axial loads. The ceramic balls reduce friction, making them ideal for precision machining applications.

In robotics, 71911 FEGA/HCP4AL Bearings provide reliable performance in articulated arms, thanks to their extra-light preload and P4A tolerance class. Their compact design fits well in tight spaces without compromising on durability.

For medical imaging devices, 71911 FEGA/HCP4AL Bearings offer quiet operation and high-speed capabilities, essential for accurate diagnostics. The phenolic cage adds stability, ensuring consistent performance over time.

In aerospace applications, these bearings handle both radial and thrust loads efficiently, making them suitable for flight control systems. Their lightweight construction helps reduce overall aircraft weight while maintaining reliability.

Automotive testing equipment benefits from 71911 FEGA/HCP4AL Bearings’ high-speed tolerance and precision, ensuring accurate data collection during performance evaluations. The open design allows for easy lubrication, extending service life.

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