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Super Precision Angular Contact Ball Bearings 71808 CD/P4DGA

Super Precision Angular Contact Ball Bearings 71808 CD/P4DGA

The 71808 CD/P4DGA is a super precision angular contact ball bearing with a 40mm bore and 52mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and is designed for angular contact loads, offering smooth operation at speeds up to 56,000 RPM.

Its open design and phenolic cage ensure durability and easy maintenance, while the extra light preload enhances performance. The bearing can handle dynamic radial loads up to 1755 lbf and static radial loads up to 2205 lbf.

This model is universally matched, allowing flexible arrangements like back-to-back or face-to-face mounting. Ideal for high-precision applications such as machine tools or spindle drives, where accuracy and reliability are key.

Weighing just 0.062kg, it’s lightweight yet robust, and operates efficiently in temperatures from -30°C to 110°C. Compliant with P4 tolerance standards for exceptional precision.

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Product Parameters

  • Part Number 71808 CD/P4DGA
  • 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 Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • 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/P4DGA dimension drawing
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Features

Performance Features of 71808 CD/P4DGA Bearing

71808 CD/P4DGA Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls provide strong resistance to wear, ensuring reliable performance.

The phenolic cage maintains ball alignment, reducing friction and extending service life.

With a maximum speed of 56,000 rpm, it balances precision and efficiency in high-speed operations.

Application

Common Applications of 71808 CD/P4DGA Bearing
71808 CD/P4DGA Bearing is widely used in high-precision machine tools, where its 15° contact angle ensures accurate spindle rotation. The universal matching feature allows flexible arrangement in back-to-back or face-to-face configurations.

In robotics, 71808 CD/P4DGA Bearing supports articulated arms, providing smooth motion control with minimal friction. Its phenolic cage reduces weight while maintaining stability during high-speed operations.

For medical imaging devices, 71808 CD/P4DGA Bearing’s P4 tolerance class delivers the precision needed for consistent performance. The chrome steel construction also ensures durability in sterile environments.

Automotive testing equipment benefits from 71808 CD/P4DGA Bearing’s ability to handle dynamic radial loads. Its extra light preload makes it suitable for sensitive measurement applications.

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