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Super Precision Angular Contact Ball Bearings 71811 CD/P4TBTL

Super Precision Angular Contact Ball Bearings 71811 CD/P4TBTL

The 71811 CD/P4TBTL is a super precision angular contact ball bearing, measuring 55mm by 72mm by 27mm. Made from chrome steel with a phenolic cage, it offers high accuracy and durability.

It handles radial loads up to 4972 lbf and spins smoothly at speeds up to 34,000 RPM. The 15° contact angle and preload option ensure stable performance in demanding applications.

This bearing comes in a matched set of three, arranged in a TBT configuration for balanced load distribution. Its open design allows easy lubrication and maintenance.

Ideal for precision machinery like CNC spindles or high-speed tools, it operates in temperatures from -30°C to 110°C. Weighing 0.24kg, it’s a reliable choice for engineers needing tight tolerances and smooth operation.

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Product Parameters

  • Part Number 71811 CD/P4TBTL
  • 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 27 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 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4972 lbf
  • Static Radial Load 7312 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.24 kg
Super Precision Angular Contact Ball Bearings 71811 CD/P4TBTL dimension drawing
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Features

Performance Features of 71811 CD/P4TBTL Bearing

71811 CD/P4TBTL Bearing is designed with a 15° 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.

The bearing set includes three matched units, providing balanced performance in demanding conditions.
With a maximum speed of 34,000 rpm, it delivers reliable efficiency for precision tasks.

71811 CD/P4TBTL Bearing operates within a temperature range of -30°C to 110°C, suitable for various environments.
Its dynamic radial load capacity of 4972 lbf ensures stability under heavy loads.

The P4 tolerance class guarantees high precision, making it ideal for critical applications.
Preload availability further enhances performance, reducing vibration and noise.

Application

Industrial Uses of 71811 CD/P4TBTL Bearing
71811 CD/P4TBTL Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched set of three bearings provides enhanced stability for demanding industrial applications.

What Makes 71811 CD/P4TBTL Bearing a Preferred Choice?
In automotive systems, 71811 CD/P4TBTL Bearing supports high-speed components like turbochargers and transmission shafts. Its phenolic cage and chrome steel construction offer durability and smooth performance under heavy loads.

Perfect Fit for Automation: 71811 CD/P4TBTL Bearing
71811 CD/P4TBTL Bearing is ideal for robotic arms and automated production lines, where precision and reliability are key. The P4 tolerance class ensures consistent performance in repetitive tasks.

Medical vs Industrial: Where 71811 CD/P4TBTL Bearing Excels
For medical imaging devices, 71811 CD/P4TBTL Bearing provides quiet and precise movement, essential for accurate diagnostics. In industrial settings, it handles high radial loads in pumps and compressors with ease.

Light-Duty vs Heavy-Duty: Best Uses for 71811 CD/P4TBTL Bearing
71811 CD/P4TBTL Bearing performs well in light-duty applications like dental drills, offering smooth operation. It also excels in heavy-duty scenarios, such as wind turbine gearboxes, thanks to its robust design.

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