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Super Precision Angular Contact Ball Bearings 71904 CE/HCP4A

Super Precision Angular Contact Ball Bearings 71904 CE/HCP4A

The 71904 CE/HCP4A is a super precision angular contact ball bearing with a 20mm bore and 37mm outer diameter, designed for high-speed applications. Its 15° contact angle and ceramic balls ensure smooth operation at speeds up to 106,000 RPM.

Made from chrome steel with a phenolic cage, it handles dynamic radial loads up to 1112 lbf. The open design allows easy lubrication, while the P4 tolerance class guarantees precise performance.

This bearing is ideal for machine tools or spindle drives where accuracy and speed are crucial. Its lightweight design (0.032kg) makes it easy to handle during installation.

Operating in temperatures from -30°C to 110°C, it’s a reliable choice for demanding environments. Compatible with SKF bearings for straightforward replacements.

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Product Parameters

  • Part Number 71904 CE/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.005mm to 0
  • Outer Dia 37 mm
  • Outer Dia Tolerance -0.006mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 14
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1112 lbf
  • Static Radial Load 531 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 106000 rpm
  • Weight 0.032 kg
  • Price（$） 144.693
Super Precision Angular Contact Ball Bearings 71904 CE/HCP4A dimension drawing
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Features

Performance Features of 71904 CE/HCP4A Bearing

71904 CE/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and ceramic balls ensure smooth operation even at high speeds.

The phenolic cage maintains ball alignment, reducing friction and wear.
With a maximum speed of 106,000 rpm, it excels in high-performance environments.

71904 CE/HCP4A Bearing’s P4 tolerance class guarantees consistent accuracy.
Its dynamic radial load capacity of 1112 lbf ensures reliability under stress.

The open design allows for easy lubrication, enhancing longevity.
This bearing is ideal for applications requiring both precision and durability.

Application

Key Fields for 71904 CE/HCP4A Bearing
71904 CE/HCP4A Bearing is commonly used in high-speed machine tools, where its 15° contact angle ensures precise radial and axial load handling. The ceramic balls reduce friction, making it suitable for applications demanding smooth rotation.

In automotive applications, 71904 CE/HCP4A Bearing supports components like electric motor shafts, thanks to its phenolic cage which withstands high temperatures. Its P4 tolerance class ensures reliable performance in demanding conditions.

For automation systems, 71904 CE/HCP4A Bearing is ideal for robotic arms and CNC machinery, where its lightweight design and high-speed capability enhance efficiency. The open seal design allows for easy lubrication maintenance.

In medical imaging devices, 71904 CE/HCP4A Bearing’s chrome steel rings provide durability, while its ceramic balls ensure quiet operation. The precise tolerances make it a dependable choice for sensitive equipment.

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