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Super Precision Angular Contact Ball Bearings 71809 CD/P4DBC

Super Precision Angular Contact Ball Bearings 71809 CD/P4DBC

The 71809 CD/P4DBC 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 operates smoothly at high speeds up to 46,000 RPM.

Its 15° contact angle and matched arrangement (DB) provide stability under moderate preload, making it suitable for precise applications. The open design and phenolic cage ensure reliable performance with easy maintenance.

This bearing is ideal for high-speed machinery like spindles or CNC equipment, where accuracy is crucial. It works well in temperatures from -30°C to 110°C and comes pre-lubricated for immediate use.

Weighing just 0.078kg, it’s lightweight yet robust. Compliant with P4 tolerance standards, it’s interchangeable with SKF bearings for convenient replacements.

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Product Parameters

  • Part Number 71809 CD/P4DBC
  • 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 Moderate / Class C
  • 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/P4DBC dimension drawing
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Features

Performance Features of 71809 CD/P4DBC Bearing

71809 CD/P4DBC Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 1784 lbf.

The phenolic cage ensures smooth operation, even at high speeds of 46,000 rpm.
With a matched arrangement of two bearings, it provides balanced performance and reliability.

71809 CD/P4DBC Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its precision P4 tolerance class guarantees consistent performance in demanding conditions.

Application

Industrial Uses of 71809 CD/P4DBC Bearing
71809 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 in demanding industrial environments.

In automotive applications, 71809 CD/P4DBC Bearing supports gearbox systems, offering smooth performance under radial and axial loads. Its moderate preload and phenolic cage make it suitable for high-speed operations in vehicles.

For automation and robotics, 71809 CD/P4DBC Bearing excels in robotic arms, delivering precise movement and reliability. The P4 tolerance class ensures consistent performance in repetitive tasks.

Medical imaging devices benefit from 71809 CD/P4DBC Bearing’s chrome steel construction, which provides durability in high-use scenarios. The open design allows for easy lubrication, extending the bearing’s service life.

In consumer electronics like printers, 71809 CD/P4DBC Bearing ensures quiet and efficient operation. Its compact size and high-speed capability make it ideal for space-constrained applications.

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