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Super Precision Angular Contact Ball Bearings 71809 CD/P4DBB

Super Precision Angular Contact Ball Bearings 71809 CD/P4DBB

The 71809 CD/P4DBB is a super precision angular contact ball bearing with a 45mm bore and 58mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 1784 lbf and spins smoothly at speeds up to 46,000 RPM.

Its 15° contact angle and matched DB arrangement provide stability for angular loads, while the phenolic cage ensures quiet operation. The bearing comes pre-lubricated and works in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a reliable choice for replacements. Ideal for high-precision applications like machine tool spindles or robotics where accuracy is key.

Weighing just 0.078kg, it’s lightweight yet robust for its size. The P4 tolerance class ensures consistent performance in demanding conditions.

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Product Parameters

  • Part Number 71809 CD/P4DBB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 58 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 14 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 31
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1784 lbf
  • Static Radial Load 2385 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.078 kg
  • Price（$） 147.555
Super Precision Angular Contact Ball Bearings 71809 CD/P4DBB dimension drawing
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Features

Performance Features of 71809 CD/P4DBB Bearing

71809 CD/P4DBB Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 1784 lbf, it handles demanding conditions reliably.

The matched arrangement of two bearings enhances stability, making it suitable for high-precision tasks.

Application

Key Fields for 71809 CD/P4DBB Bearing
71809 CD/P4DBB 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, ideal for grinding and milling operations.

In automotive applications, 71809 CD/P4DBB Bearing supports components like wheel hubs and transmissions, offering reliable performance under radial and axial loads. Its phenolic cage reduces friction, enhancing efficiency in high-speed scenarios.

For robotics, 71809 CD/P4DBB Bearing is a solid choice for articulated arms and joints, thanks to its light preload and consistent operation. The open design allows for easy lubrication, extending service life in demanding environments.

Medical imaging devices benefit from 71809 CD/P4DBB Bearing’s precision, ensuring smooth movement in scanners and diagnostic equipment. The chrome steel construction provides durability while maintaining low noise levels.

In consumer electronics, 71809 CD/P4DBB Bearing can be found in high-end printers and scanners, where its compact size and reliability are key. The P4 tolerance class guarantees performance in tight-tolerance applications.

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