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Super Precision Angular Contact Ball Bearings 71808 CD/P4DBC

Super Precision Angular Contact Ball Bearings 71808 CD/P4DBC

The 71808 CD/P4DBC is a super precision angular contact ball bearing with a 40mm bore and 52mm outer diameter, crafted from durable chrome steel. It handles both radial and angular loads, with a dynamic radial load capacity of 1755 lbf.

Designed for high-speed applications, it can reach up to 56,000 RPM, thanks to its phenolic cage and open design. The matched pair arrangement (DB configuration) ensures stable performance under moderate preload.

Its 15° contact angle provides smooth operation, ideal for precision machinery like spindles or CNC tools. The bearing operates efficiently in temperatures from -30°C to 110°C.

Weighing just 0.062kg, it’s lightweight yet robust. Compliant with P4 tolerance standards, it’s interchangeable with SKF bearings for easy replacements. Perfect for applications demanding high accuracy and speed.

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Product Parameters

  • Part Number 71808 CD/P4DBC
  • 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 <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • 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/P4DBC dimension drawing
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Features

Why Choose 71808 CD/P4DBC Bearing for Precision Tasks?

71808 CD/P4DBC Bearing features a 15° contact angle, ideal for handling combined radial and axial loads with precision.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

The matched arrangement of two bearings provides balanced performance, suitable for high-speed applications up to 56,000 rpm.
With a P4 tolerance class, it delivers consistent accuracy in demanding environments.

Moderate preload (Class C) enhances stability, making it reliable for precision machinery.
The open design allows for easy lubrication, maintaining optimal performance over time.

Application

Industrial Uses of 71808 CD/P4DBC Bearing
71808 CD/P4DBC 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 for demanding industrial applications.

In automotive systems, 71808 CD/P4DBC Bearing supports components like electric power steering units, thanks to its moderate preload and reliable performance. Its metric sizing makes it a versatile choice for various vehicle models.

For medical imaging devices, 71808 CD/P4DBC Bearing’s phenolic cage and chrome steel construction offer smooth operation and durability. The P4 tolerance class ensures consistent performance in critical healthcare equipment.

Automation & Robotics: Where 71808 CD/P4DBC Bearing Excels
71808 CD/P4DBC Bearing is ideal for robotic arms, providing precise movement with its angular contact design. The high-speed capability makes it suitable for automated production lines.

In 3D printers, 71808 CD/P4DBC Bearing ensures smooth linear motion due to its low friction and high rigidity. The matched bearing set reduces vibration, improving print quality.

Q&A

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