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Super Precision Angular Contact Ball Bearings 71808 ACDGB/P4

Super Precision Angular Contact Ball Bearings 71808 ACDGB/P4

The 71808 ACDGB/P4 is a super precision angular contact ball bearing with a 40mm bore and 52mm outer diameter, designed for high-speed applications. Its 25° contact angle efficiently handles combined radial and axial loads up to 1010 lbf.

The open design and phenolic cage allow smooth operation at speeds up to 56,000 RPM, while the chrome steel construction ensures durability. Light preload (Class B) enhances stability without excessive friction.

This bearing is ideal for precision machinery like spindles or CNC tools where accuracy is crucial. It can be paired in back-to-back, face-to-face, or tandem arrangements for versatile use. Weighing just 31g, it’s lightweight yet robust for its size.

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Product Parameters

  • Part Number 71808 ACDGB/P4
  • 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 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 29
  • Contact Angle 25°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1010 lbf
  • Static Radial Load 1024 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.031 kg
Super Precision Angular Contact Ball Bearings 71808 ACDGB/P4 dimension drawing
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Features

Performance Features of 71808 ACDGB/P4 Bearing

71808 ACDGB/P4 Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel construction ensures durability and resistance to wear under dynamic radial loads up to 1010 lbf.

The phenolic cage maintains ball alignment, reducing friction and enabling smooth operation at speeds up to 56,000 rpm.
With a P4 tolerance class, it delivers high precision for demanding industrial applications.

71808 ACDGB/P4 Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its lightweight design at 0.031 kg makes it suitable for precision machinery without compromising performance.

Application

Key Fields for 71808 ACDGB/P4 Bearing
71808 ACDGB/P4 Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The open design and light preload make it suitable for applications demanding minimal friction.

In automotive systems, 71808 ACDGB/P4 Bearing supports components like electric motors and gearboxes, thanks to its high-speed capability and durable chrome steel construction. Its metric sizing ensures compatibility with various vehicle designs.

For robotics, 71808 ACDGB/P4 Bearing excels in mechanical arms and automated systems, where its phenolic cage reduces weight while maintaining stability. The P4 tolerance class guarantees consistent performance in repetitive motions.

Medical imaging devices benefit from 71808 ACDGB/P4 Bearing’s precision and smooth operation, crucial for maintaining accuracy in diagnostic equipment. The wide temperature range allows reliable use in different clinical environments.

In consumer electronics, 71808 ACDGB/P4 Bearing is found in high-end printers and scanners, where its compact size and low noise enhance user experience. The lubricated design ensures long service life with minimal maintenance.

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