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Super Precision Angular Contact Ball Bearings 71940 ACD/P4ADBB

Super Precision Angular Contact Ball Bearings 71940 ACD/P4ADBB

The 71940 ACD/P4ADBB is a super precision angular contact ball bearing with a 200mm bore and 280mm outer diameter, crafted from high-grade chrome steel. It handles radial loads up to 73125 lbf and operates smoothly at speeds up to 16250 RPM.

Its 25° contact angle and matched arrangement of two bearings provide excellent stability under angular loads. The phenolic cage ensures quiet, long-lasting performance, while the open design allows for easy lubrication.

This bearing is ideal for high-precision applications like machine tool spindles or high-speed robotics. It works reliably in temperatures from -30°C to 110°C and meets the strict P4A tolerance class for accuracy.

Weighing 12.2kg, it’s robust yet designed for precision. Interchangeable with SKF bearings, it offers a dependable solution for demanding industrial settings.

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Product Parameters

  • Part Number 71940 ACD/P4ADBB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 200 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 280 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 76 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 26
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 73125 lbf
  • Static Radial Load 112500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 12.2 kg
Super Precision Angular Contact Ball Bearings 71940 ACD/P4ADBB dimension drawing
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Features

Performance Features of 71940 ACD/P4ADBB Bearing

71940 ACD/P4ADBB Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls ensure durability and consistent performance under high radial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a dynamic radial load capacity of 73125 lbf, it handles demanding conditions reliably.

71940 ACD/P4ADBB Bearing operates efficiently at speeds up to 16,250 rpm, balancing speed and stability.
Its P4A tolerance class guarantees high precision, making it suitable for critical machinery.

The matched arrangement of two bearings ensures uniform load sharing and extended service life.
Light preload class B further enhances performance, reducing vibration and noise.

71940 ACD/P4ADBB Bearing functions in temperatures from -30°C to 110°C, adapting to various environments.
Its open design allows for easy lubrication, maintaining optimal performance over time.

Application

Industrial Uses of 71940 ACD/P4ADBB Bearing
71940 ACD/P4ADBB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability in heavy cutting operations.

Where Is 71940 ACD/P4ADBB Bearing Used?
In aerospace applications, 71940 ACD/P4ADBB Bearing supports critical components like turbine shafts, thanks to its light preload and high-speed capability. The phenolic cage reduces friction, making it ideal for demanding environments.

Built for Heavy-Duty Use: 71940 ACD/P4ADBB Bearing
This bearing excels in industrial robotics, particularly in robotic arms requiring smooth, precise movement. Its chrome steel construction offers durability, while the P4A tolerance class ensures consistent performance.

Automotive vs Aerospace: Applications of 71940 ACD/P4ADBB Bearing
In automotive systems, 71940 ACD/P4ADBB Bearing is found in high-performance transmissions, handling both radial and axial loads. For aerospace, its reliability and speed rating make it suitable for flight control systems.

Perfect Fit for Automation: 71940 ACD/P4ADBB Bearing
71940 ACD/P4ADBB Bearing is a go-to choice for automated production lines, where its precision and low friction enhance efficiency. The open design allows for easy lubrication, extending service life in continuous operations.

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