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Super Precision Angular Contact Ball Bearings 71809 ACD/P4DBB

Super Precision Angular Contact Ball Bearings 71809 ACD/P4DBB

The 71809 ACD/P4DBB is a super precision angular contact ball bearing with a 45mm bore and 58mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched pair for balanced performance.

This bearing handles radial loads up to 1667 lbf and spins smoothly at speeds up to 46,000 RPM. Its phenolic cage ensures durability, while the open design allows for easy lubrication.

The matched arrangement (DB) with light preload ensures stability and reduces vibration. Ideal for high-precision applications like machine tools or spindle drives.

With a temperature range of -30°C to 110°C, it’s reliable in various conditions. Weighing just 0.078kg, it’s lightweight yet robust for its size. Compliant with P4 tolerance standards for precision engineering.

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Product Parameters

  • Part Number 71809 ACD/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 25°
  • 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 1667 lbf
  • Static Radial Load 2250 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 ACD/P4DBB dimension drawing
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Features

Performance Features of 71809 ACD/P4DBB Bearing

71809 ACD/P4DBB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 1667 lbf, it handles demanding conditions reliably.
The P4 tolerance class guarantees precision, making it suitable for high-performance machinery.

Operating at speeds up to 46,000 rpm, 71809 ACD/P4DBB Bearing maintains stability and efficiency.
Its matched arrangement of two bearings (DB) provides balanced performance in complex setups.

The lightweight design (0.078 kg) reduces overall system load without compromising strength.
Lubrication is pre-applied, ensuring ready-to-use convenience and minimal maintenance.

Application

Industrial Uses of 71809 ACD/P4DBB Bearing
71809 ACD/P4DBB Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability under radial and axial loads.

In automotive applications, 71809 ACD/P4DBB Bearing supports components like electric motors and gearboxes, thanks to its light preload and reliable performance. The phenolic cage reduces friction, making it suitable for long-term use.

For robotics, 71809 ACD/P4DBB Bearing excels in articulated arms and joints, where smooth movement is essential. Its P4 tolerance class guarantees consistent operation in demanding automated systems.

Medical imaging devices benefit from 71809 ACD/P4DBB Bearing’s low-noise and high-speed capabilities. The chrome steel construction ensures durability in sensitive environments.

In consumer electronics, 71809 ACD/P4DBB Bearing is found in precision printers and scanners, where its compact size and reliability are key advantages. The open design allows for easy lubrication maintenance.

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