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Super Precision Angular Contact Ball Bearings 71910 ACB/HCP4A

Super Precision Angular Contact Ball Bearings 71910 ACB/HCP4A

The 71910 ACB/HCP4A is a super precision angular contact ball bearing with a 50mm bore and 72mm outer diameter, designed for high-speed applications. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 1638 lbf.

The open design and phenolic cage make it lightweight yet durable, capable of handling speeds up to 43,000 RPM. Preload options are available for applications requiring extra stability.

This bearing is ideal for precision machinery like CNC spindles or high-speed motors, where accuracy and low friction are key. It operates efficiently in temperatures from -30°C to 110°C.

Interchangeable with SKF bearings, it offers a reliable replacement option. Weighing just 0.13kg, it combines performance with ease of handling.

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Product Parameters

  • Part Number 71910 ACB/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 50 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 72 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 29
  • 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 1638 lbf
  • Static Radial Load 1350 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 43000 rpm
  • Weight 0.13 kg
  • Price（$） 371.664
Super Precision Angular Contact Ball Bearings 71910 ACB/HCP4A dimension drawing
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Features

Performance Features of 71910 ACB/HCP4A Bearing

71910 ACB/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls reduce friction, enhancing precision and durability.

The phenolic cage ensures smooth operation at high speeds, reaching up to 43,000 rpm.
With a P4 tolerance class, it delivers exceptional accuracy for demanding tasks.

71910 ACB/HCP4A Bearing’s dynamic radial load capacity of 1638 lbf ensures reliable performance.
Its open design allows for easy lubrication, maintaining efficiency over time.

The matched arrangement option provides flexibility for complex installations.
This bearing operates efficiently within a temperature range of -30° to 110°C.

Application

Industrial Uses of 71910 ACB/HCP4A Bearing
71910 ACB/HCP4A Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it suitable for high-speed spindle applications.

Where Is 71910 ACB/HCP4A Bearing Used?
In robotics, 71910 ACB/HCP4A Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage and P4 tolerance class. Its compact design fits well in space-constrained automation setups.

Built for Heavy-Duty Use: 71910 ACB/HCP4A Bearing
This bearing excels in aerospace applications, such as helicopter rotor systems, where its dynamic load capacity and temperature stability are crucial. The matched arrangement option further enhances performance in paired installations.

Automotive vs Aerospace: Applications of 71910 ACB/HCP4A Bearing
In automotive transmissions, 71910 ACB/HCP4A Bearing handles high-speed rotations with minimal heat buildup. Meanwhile, its precision makes it equally reliable in aircraft instrumentation systems.

Perfect Fit for Automation: 71910 ACB/HCP4A Bearing
71910 ACB/HCP4A Bearing is ideal for CNC machinery, where consistent accuracy is needed for repetitive tasks. The open seal design allows for easy lubrication, extending service life in demanding environments.

Q&A

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