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Super Precision Angular Contact Ball Bearings 71924 ACD/P4A

Super Precision Angular Contact Ball Bearings 71924 ACD/P4A

The 71924 ACD/P4A 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 can handle radial loads up to 16380 lbf, making it suitable for high-speed applications.

With a phenolic cage and open design, it ensures smooth operation at speeds up to 11000 RPM. The bearing is preloaded for better performance and works in temperatures from -30°C to 110°C.

Its P4 tolerance class (equivalent to ABEC-7) guarantees high precision, ideal for machine tools or spindle applications. Weighing 1.15kg, it’s robust yet manageable for its size.

This model is interchangeable with SKF bearings, offering a reliable replacement option. It’s lubricated for long service life and minimal maintenance.

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Product Parameters

  • Part Number 71924 ACD/P4A
  • 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 28
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 16380 lbf
  • Static Radial Load 19462 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 11000 rpm
  • Weight 1.15 kg
  • Price（$） 1514.97
Super Precision Angular Contact Ball Bearings 71924 ACD/P4A dimension drawing
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Features

Performance Features of 71924 ACD/P4A Bearing

71924 ACD/P4A Bearing is crafted with a 25° contact angle, optimising its ability to handle combined radial and axial loads.
The chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 16380 lbf, it performs reliably in demanding applications.
Its P4 tolerance class guarantees precision, making it suitable for high-accuracy machinery.

The bearing operates efficiently at speeds up to 11,000 rpm, balancing performance and longevity.
Its open design allows for easy lubrication, reducing maintenance needs over time.

71924 ACD/P4A Bearing functions well in temperatures ranging from -30° to 110°C, ensuring versatility.
The phenolic cage material also helps in reducing noise, making it ideal for precision instruments.

Application

Industrial Uses of 71924 ACD/P4A Bearing
The 71924 ACD/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its phenolic cage offers smooth operation at high speeds, making it suitable for demanding industrial environments.

In automotive applications, 71924 ACD/P4A Bearing supports components like wheel hubs and transmissions, providing reliable performance under radial and axial loads. The P4 tolerance class ensures consistent precision, even in high-speed scenarios.

For robotics and automation, 71924 ACD/P4A Bearing’s open design and chrome steel construction make it ideal for robotic arms and CNC machines. Its ability to handle combined loads makes it a versatile choice for precision movements.

In medical imaging devices, 71924 ACD/P4A Bearing’s low friction and high-speed capabilities ensure smooth operation. The phenolic cage reduces vibration, which is crucial for maintaining image clarity in sensitive equipment.

For aerospace applications, 71924 ACD/P4A Bearing’s durability and precision make it suitable for aircraft control systems. Its ability to perform under extreme conditions ensures reliability in critical flight components.

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