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Super Precision Angular Contact Ball Bearings 71808 CD/P4DFA

Super Precision Angular Contact Ball Bearings 71808 CD/P4DFA

The 71808 CD/P4DFA is a super precision angular contact ball bearing, measuring 40mm by 52mm by 14mm. Made from chrome steel, it features a 15° contact angle and comes in a matched set of two bearings arranged back-to-back.

It handles radial loads up to 1755 lbf and spins smoothly at speeds up to 56,000 RPM. The phenolic cage ensures quiet operation, while the open design allows for easy lubrication.

With a P4 tolerance class, this bearing offers high precision for demanding applications. Its extra light preload (Class A) ensures minimal friction during operation.

Ideal for precision machinery like spindles or CNC equipment where accuracy is crucial. Works well in temperatures from -30°C to 110°C and weighs just 0.062kg per bearing.

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Product Parameters

  • Part Number 71808 CD/P4DFA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 52 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 14 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 29
  • Contact Angle 15°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings >< DF
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1755 lbf
  • Static Radial Load 2205 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.062 kg
Super Precision Angular Contact Ball Bearings 71808 CD/P4DFA dimension drawing
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Features

Performance Features of 71808 CD/P4DFA Bearing

71808 CD/P4DFA Bearing is designed with a 15° contact angle, optimising load distribution for precision tasks.
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 1755 lbf, it handles demanding applications with ease.
Its extra light preload (Class A) reduces friction, making it ideal for high-speed operations up to 56,000 rpm.

The matched arrangement of two bearings (DF) provides stability and balanced performance.
Open seal design allows for easy lubrication, maintaining efficiency in various conditions.

Operating between -30°C to 110°C, 71808 CD/P4DFA Bearing adapts to a wide temperature range.
Its P4 tolerance class ensures consistent precision, making it suitable for critical applications.

Application

Industrial Uses of 71808 CD/P4DFA Bearing
71808 CD/P4DFA 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 extra stability for demanding operations.

In automotive applications, 71808 CD/P4DFA Bearing supports high-speed components like turbochargers and electric motors. Its phenolic cage offers quiet operation, making it suitable for modern vehicle systems.

For automation equipment, 71808 CD/P4DFA Bearing excels in robotic arms and CNC machines due to its low friction and high-speed capabilities. The P4 tolerance class ensures consistent performance in repetitive tasks.

Medical imaging devices benefit from 71808 CD/P4DFA Bearing’s precision and reliability, particularly in MRI scanners and surgical robots. The chrome steel construction ensures long-lasting performance in critical environments.

Q&A

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