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Super Precision Angular Contact Ball Bearings 71924 ACE/HCP4A

Super Precision Angular Contact Ball Bearings 71924 ACE/HCP4A

The 71924 ACE/HCP4A is a super precision angular contact ball bearing with a 120mm bore and 165mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 10102 lbf and reaches speeds of 17500 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability while keeping weight low at just 0.93kg.

The open design allows for easy lubrication, and it operates reliably in temperatures from -30°C to 110°C. With P4 precision class (ABEC-7), it offers excellent accuracy for demanding machinery.

Ideal for precision equipment like machine tool spindles or high-speed applications where both radial and axial loads are present. Its interchangeable design with SKF bearings makes it a practical choice for replacements.

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Product Parameters

  • Part Number 71924 ACE/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 120 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 165 mm
  • Outer Dia Tolerance -0.01mm to 0
  • Width 22 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 14.288 mm
  • Ball Qty 24
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 10102 lbf
  • Static Radial Load 8550 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 17500 rpm
  • Weight 0.93 kg
  • Price（$） 1514.466
Super Precision Angular Contact Ball Bearings 71924 ACE/HCP4A dimension drawing
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Features

Performance Features of 71924 ACE/HCP4A Bearing

71924 ACE/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.

With a dynamic radial load capacity of 10102 lbf, it handles high-speed applications up to 17,500 rpm reliably.
The phenolic cage ensures stable performance, even under demanding conditions.

71924 ACE/HCP4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its precision P4 tolerance class makes it suitable for high-accuracy tasks.

Application

Industrial Uses of 71924 ACE/HCP4A Bearing
71924 ACE/HCP4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for applications demanding smooth operation.

In automotive systems, 71924 ACE/HCP4A Bearing supports components like wheel hubs and transmissions, handling both radial and axial loads effectively. Its P4 tolerance class ensures consistent performance in demanding driving conditions.

For medical imaging devices, 71924 ACE/HCP4A Bearing’s phenolic cage and chrome steel rings provide reliable performance in high-precision equipment. The open design allows for easy lubrication, extending service life in critical applications.

Automation and robotics benefit from 71924 ACE/HCP4A Bearing’s ability to handle high speeds and precise movements. Its lightweight phenolic cage reduces inertia, making it ideal for robotic arms and CNC machinery.

In consumer electronics, 71924 ACE/HCP4A Bearing can be found in high-performance printers and scanners, where its low noise and vibration levels enhance device reliability. The ceramic balls also contribute to longer service life in continuous-use scenarios.

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