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Super Precision Angular Contact Ball Bearings 71919 ACB/HCP4A

Super Precision Angular Contact Ball Bearings 71919 ACB/HCP4A

The 71919 ACB/HCP4A is a super precision angular contact ball bearing with a 95mm bore and 130mm outer diameter, designed for high-speed applications. Its 25° contact angle efficiently handles combined radial and thrust loads up to 3870 lbf.

Made from chrome steel rings and ceramic balls, it offers reduced friction and can reach speeds up to 22,000 RPM. The phenolic cage provides stability while keeping weight low at just 0.58kg.

This open-design bearing comes pre-lubricated and operates in temperatures from -30°C to 110°C. Its P4 tolerance class ensures exceptional accuracy for precision machinery.

Ideal for machine tool spindles or high-performance motors where speed and precision are crucial. Matched arrangements are available for applications requiring paired bearings.

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Product Parameters

  • Part Number 71919 ACB/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 95 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 130 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 38
  • 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 3870 lbf
  • Static Radial Load 3960 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 22000 rpm
  • Weight 0.58 kg
  • Price（$） 112.365
Super Precision Angular Contact Ball Bearings 71919 ACB/HCP4A dimension drawing
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Features

Performance Features of 71919 ACB/HCP4A Bearing

71919 ACB/HCP4A Bearing features a 25° contact angle, optimised for angular contact loads.
Its chrome steel rings and ceramic balls enhance durability and reduce friction.

The phenolic cage ensures smooth operation, even at high speeds up to 22,000 rpm.
With a dynamic radial load capacity of 3870 lbf, it handles demanding applications with ease.

Precision-engineered to P4 tolerance class, 71919 ACB/HCP4A Bearing offers reliable performance.
Its open design allows for easy lubrication, maintaining efficiency over time.

71919 ACB/HCP4A Bearing operates in temperatures from -30° to 110°C, suitable for varied environments.
The matched arrangement option provides added flexibility for specific application needs.

Application

Essential Roles of 71919 ACB/HCP4A Bearing
71919 ACB/HCP4A Bearing is widely used in high-speed machine tools, where its precision and angular contact design ensure accurate spindle performance. The ceramic balls reduce friction, making it ideal for applications demanding smooth rotation.

In aerospace systems, 71919 ACB/HCP4A Bearing supports critical components like turbine shafts, thanks to its high-speed capability and reliable load handling. The phenolic cage adds durability in demanding environments.

For automation equipment, 71919 ACB/HCP4A Bearing excels in robotic arms and CNC machines, where its P4 tolerance class guarantees consistent operation. The open design allows for easy lubrication, extending service life.

Medical imaging devices benefit from 71919 ACB/HCP4A Bearing’s low-vibration performance, ensuring clear scans. Its chrome steel rings provide long-term reliability in sterile environments.

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