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Super Precision Angular Contact Ball Bearings 71920 FEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71920 FEGA/HCP4A

The 71920 FEGA/HCP4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from chrome steel for durability. It features ceramic balls and a phenolic cage, offering smooth operation at speeds up to 16,000 RPM.

With an 18° contact angle, it handles both radial and angular loads effectively, supporting up to 8775 lbf dynamically. The extra light preload ensures minimal friction, ideal for high-precision applications.

Its open design allows for easy lubrication, while the P4A tolerance class guarantees exceptional accuracy. Suitable for use in machine tools or spindle systems where precision is key.

Weighing 0.65kg, this bearing is part of a universal matching set, compatible with back-to-back, face-to-face, or tandem arrangements. It operates reliably in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71920 FEGA/HCP4A
  • 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 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 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/HCP4A dimension drawing
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Features

Performance Features of 71920 FEGA/HCP4A Bearing

71920 FEGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 18° contact angle provides excellent angular contact performance, suitable for complex load conditions.
The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 16,000 rpm, it excels in high-speed applications.

How Does 71920 FEGA/HCP4A Bearing Reduce Friction?

71920 FEGA/HCP4A Bearing uses ceramic balls and a phenolic cage to minimise friction during operation.
The open design allows for efficient lubrication, further reducing wear and heat generation.
Its extra light preload ensures smooth rotation, making it ideal for precision tasks.
The P4A tolerance class guarantees consistent performance in demanding environments.

Engineered for Precision: 71920 FEGA/HCP4A Bearing

71920 FEGA/HCP4A Bearing offers superior precision with its P4A tolerance class and ceramic ball construction.
The dynamic radial load capacity of 8775 lbf ensures reliable performance under stress.
Its universal matching capability allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.
Operating between -30°C to 110°C, it maintains stability across a wide temperature range.

Steel vs Ceramic Bearings: Strengths of 71920 FEGA/HCP4A Bearing

71920 FEGA/HCP4A Bearing combines chrome steel rings with ceramic balls for enhanced performance.
This hybrid design reduces weight while maintaining strength and resistance to wear.
The ceramic balls contribute to lower friction and higher speed capabilities compared to all-steel designs.
With 24 balls and a 12.7 mm ball diameter, it ensures even load distribution and smooth operation.

Application

Key Fields for 71920 FEGA/HCP4A Bearing
71920 FEGA/HCP4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for applications demanding smooth operation.

In aerospace components, 71920 FEGA/HCP4A Bearing provides reliable performance in systems like gyroscopes and flight control mechanisms. Its extra light preload helps maintain stability under varying angular loads.

For robotics, 71920 FEGA/HCP4A Bearing is ideal for articulated arms, offering consistent movement with minimal vibration. The phenolic cage adds durability, ensuring long service life in repetitive motion scenarios.

Medical imaging devices benefit from 71920 FEGA/HCP4A Bearing’s high precision, crucial for maintaining alignment in scanners. The P4A tolerance class guarantees the accuracy needed in sensitive diagnostic equipment.

Q&A

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