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Super Precision Angular Contact Ball Bearings 71924 ACD/P4ADBC

Super Precision Angular Contact Ball Bearings 71924 ACD/P4ADBC

The 71924 ACD/P4ADBC is a super precision angular contact ball bearing with a 120mm bore and 165mm outer diameter, designed for high-performance applications. Its 25° contact angle and moderate preload ensure smooth handling of combined radial and axial loads.
Made from chrome steel with a phenolic cage, it supports dynamic radial loads up to 26775 lbf and spins at speeds up to 16250 RPM. The open design allows easy lubrication, while the matched pair (DB arrangement) enhances stability.
This bearing operates reliably in temperatures from -30°C to 110°C, making it suitable for machine tools or high-speed spindles. Its P4A tolerance class guarantees precision for demanding industrial use.
Weighing 2.3kg, it’s robust yet manageable for its size. Interchangeable with SKF bearings, it’s a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 71924 ACD/P4ADBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 120 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 165 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 44 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 14.288 mm
  • Ball Qty 28
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 26775 lbf
  • Static Radial Load 38925 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 2.3 kg
Super Precision Angular Contact Ball Bearings 71924 ACD/P4ADBC dimension drawing
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Features

How Does 71924 ACD/P4ADBC Bearing Reduce Friction?

71924 ACD/P4ADBC Bearing features a 25° contact angle, optimised for smooth angular contact performance.
The chrome steel construction ensures durability while minimising friction during operation.

Its phenolic cage maintains precise ball alignment, reducing wear and enhancing efficiency.
With a maximum speed of 16,250 rpm, it delivers reliable performance in high-speed applications.

The matched arrangement of two bearings provides balanced load distribution.
This design ensures consistent operation under dynamic radial loads up to 26,775 lbf.

Application

Industrial Uses of 71924 ACD/P4ADBC Bearing
71924 ACD/P4ADBC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload helps maintain stability during heavy cutting operations.

In automotive applications, 71924 ACD/P4ADBC Bearing supports high-performance gearboxes, particularly in racing or luxury vehicles. Its phenolic cage reduces friction, enhancing efficiency at high speeds.

For robotics, 71924 ACD/P4ADBC Bearing is ideal for articulated arms, providing smooth movement under angular loads. The matched arrangement of two bearings improves load distribution in dynamic applications.

Medical imaging devices benefit from 71924 ACD/P4ADBC Bearing’s precision, ensuring quiet and reliable operation in MRI machines. The P4A tolerance class guarantees consistent performance in sensitive environments.

In aerospace systems, 71924 ACD/P4ADBC Bearing handles radial and axial loads in flight control mechanisms. Its chrome steel construction offers durability under extreme temperature variations.

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