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Super Precision Angular Contact Ball Bearings 71811 CD/P4DBB

Super Precision Angular Contact Ball Bearings 71811 CD/P4DBB

The 71811 CD/P4DBB is a super precision angular contact ball bearing, measuring 55mm by 72mm by 18mm, crafted from durable chrome steel. It features a 15° contact angle and comes in a matched pair for balanced performance.

This bearing handles radial loads up to 3780 lbf and spins smoothly at speeds up to 34,000 RPM. Its phenolic cage ensures quiet operation and long service life, even under light preload conditions.

The open design allows for easy lubrication, while the P4 tolerance class guarantees high precision. Ideal for applications like machine tools or high-speed spindles where accuracy is key.

Weighing just 0.16kg, it’s lightweight yet robust. Compatible with SKF bearings, it’s a reliable choice for replacements or upgrades. Works well in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71811 CD/P4DBB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 72 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 3780 lbf
  • Static Radial Load 4860 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.16 kg
Super Precision Angular Contact Ball Bearings 71811 CD/P4DBB dimension drawing
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Features

Why Choose 71811 CD/P4DBB Bearing for Precision Tasks?

71811 CD/P4DBB Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel construction ensures durability and smooth operation under dynamic radial loads up to 3780 lbf.

The matched arrangement of two bearings provides stability, ideal for applications requiring tight tolerances.
With a maximum speed of 34,000 rpm, it delivers reliable performance in high-speed scenarios.

Phenolic cage material reduces friction, enhancing efficiency and extending service life.
Its P4 tolerance class guarantees precision, making it suitable for demanding industrial uses.

Application

Industrial Uses of 71811 CD/P4DBB Bearing
71811 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 in demanding industrial environments.

What Makes 71811 CD/P4DBB Bearing a Preferred Choice?
In automotive applications, 71811 CD/P4DBB Bearing supports gearbox systems, offering reliable performance under radial and axial loads. Its phenolic cage reduces friction, making it suitable for high-speed operations.

Perfect Fit for Automation: 71811 CD/P4DBB Bearing
71811 CD/P4DBB Bearing is ideal for robotic arms, where its light preload and precision tolerances enhance movement accuracy. The open design allows for easy lubrication, extending service life in continuous use.

Medical vs Industrial: Where 71811 CD/P4DBB Bearing Excels
In medical imaging devices, 71811 CD/P4DBB Bearing’s chrome steel construction ensures smooth operation with minimal noise. Its high-speed capability also makes it a good fit for industrial pumps and compressors.

Q&A

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