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Super Precision Angular Contact Ball Bearings 71904 CD/P4ADBB

Super Precision Angular Contact Ball Bearings 71904 CD/P4ADBB

The 71904 CD/P4ADBB is a super precision angular contact ball bearing, measuring 20mm by 37mm by 18mm. Made from chrome steel with a phenolic cage, it offers smooth operation and durability.

With a 15° contact angle, it handles both radial and axial loads efficiently. It supports dynamic radial loads up to 2194 lbf and spins at speeds up to 80,000 RPM.

The matched pair design (DB arrangement) ensures stability, while the light preload enhances performance. Ideal for high-precision applications like machine tools or spindles.

Weighing just 0.07kg, it’s lightweight yet robust. Suitable for temperatures from -30°C to 110°C, making it versatile for various industrial uses.

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Product Parameters

  • Part Number 71904 CD/P4ADBB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 37 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 15
  • Contact Angle 15°
  • 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 2194 lbf
  • Static Radial Load 1440 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 80000 rpm
  • Weight 0.07 kg
  • Price（$） 163.53
Super Precision Angular Contact Ball Bearings 71904 CD/P4ADBB dimension drawing
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Features

How Does 71904 CD/P4ADBB Bearing Achieve Super Precision?

71904 CD/P4ADBB Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 2194 lbf, it handles demanding tasks efficiently.
The matched arrangement of two bearings enhances stability and performance.

71904 CD/P4ADBB Bearing operates smoothly at speeds up to 80,000 rpm, making it ideal for precision machinery.
Its P4A tolerance class guarantees consistent accuracy in high-speed applications.

Application

Industrial Uses of 71904 CD/P4ADBB Bearing
71904 CD/P4ADBB Bearing is commonly used in high-speed machine spindles, where its precision angular contact design ensures accurate rotation. The light preload and matched arrangement make it suitable for applications requiring minimal deflection.

Where Is 71904 CD/P4ADBB Bearing Used?
In robotics, 71904 CD/P4ADBB Bearing supports articulated arms, providing smooth movement and long service life. Its phenolic cage reduces friction, making it ideal for repetitive motion tasks.

Optimized for Performance: 71904 CD/P4ADBB Bearing
For CNC machining centres, 71904 CD/P4ADBB Bearing offers reliable performance under radial and axial loads. The chrome steel construction ensures durability even in demanding industrial environments.

Automotive vs Aerospace: Applications of 71904 CD/P4ADBB Bearing
In automotive systems, 71904 CD/P4ADBB Bearing is found in gearboxes, while aerospace applications include flight control mechanisms. Its high-speed capability and precision make it versatile across industries.

Practical Applications of 71904 CD/P4ADBB Bearing
71904 CD/P4ADBB Bearing is a popular choice for dental drills, where its smooth operation and low noise are essential. The open design allows for easy lubrication, ensuring consistent performance.

Q&A

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