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Super Precision Angular Contact Ball Bearings 71918 ACB/HCP4A

Super Precision Angular Contact Ball Bearings 71918 ACB/HCP4A

The 71918 ACB/HCP4A is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and ceramic balls for enhanced performance.

This bearing handles radial loads up to 3780 lbf and reaches speeds of 22,000 RPM, making it suitable for high-speed applications. Its phenolic cage ensures durability and smooth operation.

With a P4 tolerance class (ABEC-7), it offers exceptional precision for demanding tasks. The open design allows for easy lubrication and maintenance.

Ideal for use in machine tools or precision equipment where accuracy and speed are crucial. Weighing 0.56kg, it’s a robust yet lightweight choice for industrial applications.

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Product Parameters

  • Part Number 71918 ACB/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 25°
  • 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 3780 lbf
  • Static Radial Load 3735 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 22000 rpm
  • Weight 0.56 kg
  • Price（$） 11.295
Super Precision Angular Contact Ball Bearings 71918 ACB/HCP4A dimension drawing
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Features

Why Choose 71918 ACB/HCP4A Bearing for Precision Tasks?

71918 ACB/HCP4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads.
Its ceramic balls and chrome steel rings ensure smooth operation with minimal friction.

The phenolic cage maintains ball alignment, enhancing performance at high speeds up to 22,000 rpm.
With a P4 tolerance class, it delivers exceptional precision for demanding applications.

71918 ACB/HCP4A Bearing operates efficiently in temperatures from -30° to 110°C.
Its dynamic radial load capacity of 3780 lbf ensures reliability in rigorous conditions.

Application

Common Applications of 71918 ACB/HCP4A Bearing
71918 ACB/HCP4A Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle performance. The ceramic balls reduce friction, making it suitable for demanding industrial environments.

In robotics, 71918 ACB/HCP4A Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage and P4 tolerance. Its lightweight construction also helps improve energy efficiency in automated systems.

For aerospace applications, 71918 ACB/HCP4A Bearing’s matched arrangement and preload options enhance stability in navigation systems. The open seal design allows for easy lubrication, extending service life in critical operations.

Medical imaging devices benefit from 71918 ACB/HCP4A Bearing’s low vibration and high-speed capabilities. Its chrome steel rings and ceramic balls ensure reliable performance in sensitive diagnostic equipment.

In electric vehicles, 71918 ACB/HCP4A Bearing supports motor shafts with its angular contact design, handling both radial and axial loads efficiently. The metric sizing makes it compatible with various European and Asian automotive standards.

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