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Super Precision Angular Contact Ball Bearings 71918 CB/HCP4A

Super Precision Angular Contact Ball Bearings 71918 CB/HCP4A

The 71918 CB/HCP4A is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from chrome steel for durability. It handles radial loads up to 4005 lbf and reaches speeds of 26,000 RPM, thanks to its ceramic balls and phenolic cage.

With a 15° contact angle and P4 tolerance class, it offers high accuracy for demanding applications. The open design allows easy lubrication, while matched arrangements ensure consistent performance.

Ideal for high-speed machinery like spindles or CNC tools, where precision and reliability are key. Its lightweight 0.56kg design makes it easy to handle without compromising strength.

The bearing operates smoothly in temperatures from -30°C to 110°C, making it versatile for various industrial environments. Compatible with SKF models for straightforward replacements.

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Product Parameters

  • Part Number 71918 CB/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 36
  • 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 4005 lbf
  • Static Radial Load 3960 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 26000 rpm
  • Weight 0.56 kg
  • Price（$） 11.232
Super Precision Angular Contact Ball Bearings 71918 CB/HCP4A dimension drawing
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Features

Performance Features of 71918 CB/HCP4A Bearing

71918 CB/HCP4A Bearing features a 15° contact angle, optimised for precision angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.

The phenolic cage maintains ball alignment, ensuring consistent performance even at high speeds up to 26,000 rpm.
With a dynamic radial load capacity of 4005 lbf, it handles demanding tasks reliably.

Designed for precision, 71918 CB/HCP4A Bearing meets P4 tolerance class for exceptional accuracy.
Its open design allows for easy lubrication, extending service life in various operating conditions.

Application

Essential Roles of 71918 CB/HCP4A Bearing
71918 CB/HCP4A Bearing is widely used in high-precision machine tools, where its 15° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it ideal for high-speed spindle applications.

In aerospace components, 71918 CB/HCP4A Bearing provides reliable performance in systems like gyroscopes and flight control mechanisms. Its phenolic cage offers excellent heat resistance, crucial for demanding aviation environments.

For robotics, 71918 CB/HCP4A Bearing supports smooth motion in articulated arms and precision joints. The P4 tolerance class guarantees consistent operation in automated manufacturing processes.

Medical imaging devices benefit from 71918 CB/HCP4A Bearing’s low vibration and high-speed capabilities. The chrome steel rings ensure durability in critical diagnostic equipment.

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