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Super Precision Angular Contact Ball Bearings 71809 CD/P4DBA

Super Precision Angular Contact Ball Bearings 71809 CD/P4DBA

The 71809 CD/P4DBA 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.

With a 15° contact angle and matched DB arrangement, it offers excellent stability for high-precision applications. The phenolic cage ensures quiet operation and long service life.

Designed for extra light preload, this bearing is ideal for machine tools or spindle systems where accuracy is key. It operates reliably in temperatures from -30°C to 110°C.

Weighing just 0.078kg per bearing, the set provides a lightweight yet robust solution. Compliant with P4 tolerance standards, it’s interchangeable with SKF equivalents for easy replacement.

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Product Parameters

  • Part Number 71809 CD/P4DBA
  • 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 Extra light / Class A
  • 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
Super Precision Angular Contact Ball Bearings 71809 CD/P4DBA dimension drawing
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Features

Performance Features of 71809 CD/P4DBA Bearing

71809 CD/P4DBA Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

The matched arrangement of two bearings provides extra light preload, enhancing stability in high-speed operations.
With a maximum speed of 46,000 rpm, it balances performance and reliability.

71809 CD/P4DBA Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its dynamic radial load capacity of 1784 lbf makes it suitable for demanding tasks.

The P4 tolerance class ensures high precision, ideal for critical applications.
Its compact size (45 mm×58 mm×14 mm) allows for easy integration into various systems.

Lubrication is pre-applied, reducing initial setup time and maintenance needs.
The open seal design facilitates easy inspection and re-lubrication if required.

Application

Industrial Uses of 71809 CD/P4DBA Bearing
71809 CD/P4DBA 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 in demanding industrial environments.

In automotive applications, 71809 CD/P4DBA Bearing supports gearbox systems, offering smooth performance under radial and axial loads. Its phenolic cage material helps reduce friction, enhancing efficiency in high-speed scenarios.

For medical imaging devices, 71809 CD/P4DBA Bearing’s P4 tolerance class ensures reliable operation in sensitive equipment. The chrome steel construction adds durability, making it suitable for long-term use in critical applications.

Automation systems benefit from 71809 CD/P4DBA Bearing’s extra light preload, which minimises vibration in robotic arms. The open seal type allows for easy lubrication, maintaining performance over time.

In consumer electronics, 71809 CD/P4DBA Bearing is found in high-end printers, where its precision engineering ensures consistent paper feed. The compact size makes it ideal for space-constrained designs.

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