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Super Precision Angular Contact Ball Bearings 71908 CB/HCP4A

Super Precision Angular Contact Ball Bearings 71908 CB/HCP4A

The 71908 CB/HCP4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from chrome steel for durability. Its compact 12mm width makes it suitable for tight spaces while handling radial loads up to 1215 lbf.

With a 15° contact angle and ceramic balls, it offers smooth operation at high speeds up to 56,000 RPM. The phenolic cage ensures quiet performance and reduces friction, ideal for precision applications.

This open-design bearing comes pre-lubricated and can withstand temperatures from -30°C to 110°C. It meets P4 tolerance standards (ABEC-7) for exceptional accuracy.

Perfect for high-speed machinery like spindles or dental equipment where precision and reliability are key. Its interchangeable design with SKF bearings simplifies replacements. Weighing just 0.11kg, it’s lightweight yet robust.

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Product Parameters

  • Part Number 71908 CB/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 28
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1215 lbf
  • Static Radial Load 934 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.11 kg
  • Price（$） 288.621
Super Precision Angular Contact Ball Bearings 71908 CB/HCP4A dimension drawing
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Features

Why Choose 71908 CB/HCP4A Bearing for Precision Tasks?

71908 CB/HCP4A Bearing features a 15° contact angle, ideal for high-precision angular contact applications.
Its chrome steel rings and ceramic balls ensure minimal friction and enhanced durability.

With a dynamic radial load capacity of 1215 lbf, it handles demanding operations smoothly.
The phenolic cage maintains ball alignment, reducing wear and extending service life.

71908 CB/HCP4A Bearing operates at speeds up to 56,000 rpm, balancing speed and precision.
Its P4 tolerance class (ABEC-7) guarantees consistent performance in critical applications.

The open design allows for easy lubrication, ensuring optimal performance over time.
Its temperature range of -30° to 110°C makes it suitable for various environments.

Application

How Does 71908 CB/HCP4A Bearing Improve Performance?
71908 CB/HCP4A Bearing is commonly used in high-precision machine tools, where its 15° contact angle ensures accurate radial and axial load distribution. The ceramic balls reduce friction, making it ideal for high-speed spindle applications.

In robotics, 71908 CB/HCP4A Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage and P4 tolerance class. Its matched arrangement option also allows for custom preload settings in complex assemblies.

For medical imaging devices like CT scanners, 71908 CB/HCP4A Bearing’s low vibration and heat generation are key advantages. The open design simplifies lubrication maintenance, extending service life in critical healthcare environments.

Automotive enthusiasts appreciate 71908 CB/HCP4A Bearing in performance gearboxes, where its angular contact design handles combined loads efficiently. The metric sizing ensures compatibility with European and Asian transmission systems.

In aerospace applications, 71908 CB/HCP4A Bearing’s lightweight construction and high-speed capability make it suitable for auxiliary systems. The chrome steel rings provide durability under varying temperature conditions.

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