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Super Precision Angular Contact Ball Bearings 71904 FE/HCP4A

Super Precision Angular Contact Ball Bearings 71904 FE/HCP4A

The 71904 FE/HCP4A is a super precision angular contact ball bearing with a compact 20mm bore and 37mm outer diameter, crafted from high-quality chrome steel. It features ceramic balls for reduced friction and a phenolic cage for durability.

With a contact angle of 18°, it handles both radial and axial loads efficiently, supporting dynamic radial loads up to 1098 lbf. It spins smoothly at speeds up to 100,500 RPM, making it ideal for high-performance applications.

The open design allows easy lubrication, while the P4A tolerance class ensures exceptional precision. Its lightweight construction at just 0.032kg doesn’t compromise strength.

Perfect for precision machinery like spindles or CNC tools where accuracy and speed are crucial. Compliant with standard temperature ranges from -30°C to 110°C.

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Product Parameters

  • Part Number 71904 FE/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 37 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 14
  • 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 No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1098 lbf
  • Static Radial Load 522 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 100500 rpm
  • Weight 0.032 kg
Super Precision Angular Contact Ball Bearings 71904 FE/HCP4A dimension drawing
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Features

How Does 71904 FE/HCP4A Bearing Reduce Friction?

71904 FE/HCP4A Bearing features ceramic balls that significantly reduce friction during high-speed operation.
Its 18° contact angle ensures smooth performance under angular loads, enhancing efficiency.

The phenolic cage maintains ball alignment, minimising wear and extending the bearing’s lifespan.
With a maximum speed of 100,500 rpm, it is ideal for precision applications requiring high rotational accuracy.

Chrome steel rings provide durability, while the open design allows for easy lubrication.
This combination ensures reliable operation in temperatures ranging from -30°C to 110°C.

Application

Industrial Uses of 71904 FE/HCP4A Bearing
71904 FE/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 ideal for applications demanding smooth, consistent performance.

What Makes 71904 FE/HCP4A Bearing a Preferred Choice?
In automotive applications, 71904 FE/HCP4A Bearing supports components like turbochargers and electric motors, thanks to its ability to handle both radial and axial loads. The phenolic cage adds durability, especially in high-temperature environments.

Perfect Fit for Automation: 71904 FE/HCP4A Bearing
For robotic arms and automated systems, 71904 FE/HCP4A Bearing offers reliable performance with minimal maintenance. Its P4A tolerance class ensures precise movement, crucial for repetitive tasks in manufacturing lines.

Medical vs Industrial: Where 71904 FE/HCP4A Bearing Excels
In medical imaging devices, 71904 FE/HCP4A Bearing provides quiet and vibration-free operation, essential for clear diagnostics. Meanwhile, in industrial settings, its high-speed capability makes it suitable for CNC machinery and precision equipment.

Q&A

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