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Super Precision Angular Contact Ball Bearings 71911 CD/P4ATBTB

Super Precision Angular Contact Ball Bearings 71911 CD/P4ATBTB

The 71911 CD/P4ATBTB is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 9360 lbf and operates smoothly at speeds up to 34,000 RPM.

Its 15° contact angle and matched arrangement of three bearings provide excellent stability for angular loads. The phenolic cage ensures durability while keeping the weight light at just 0.54kg.

This bearing is lubricated for easy maintenance and performs reliably in temperatures from -30°C to 110°C. Ideal for high-precision applications like machine tool spindles or aerospace components.

With a P4A tolerance class, it meets strict precision standards. The open design allows for straightforward inspection and cleaning, making it a practical choice for demanding environments.

Interchangeable with SKF bearings, it offers a reliable alternative for replacements or upgrades. Its balanced design ensures smooth operation even under heavy loads.

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Product Parameters

  • Part Number 71911 CD/P4ATBTB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 39 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • 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 9360 lbf
  • Static Radial Load 9900 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.54 kg
Super Precision Angular Contact Ball Bearings 71911 CD/P4ATBTB dimension drawing
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Features

Performance Features of 71911 CD/P4ATBTB Bearing

71911 CD/P4ATBTB Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls provide strong resistance to radial and axial loads.

The phenolic cage ensures smooth operation at high speeds, up to 34,000 rpm.
This makes 71911 CD/P4ATBTB Bearing suitable for precision tasks requiring stability.

With a matched arrangement of three bearings, it offers consistent performance under light preload conditions.
The P4A tolerance class guarantees high precision in demanding environments.

71911 CD/P4ATBTB Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its lubricated design reduces friction, extending service life and minimising maintenance needs.

Application

Industrial Uses of 71911 CD/P4ATBTB Bearing
71911 CD/P4ATBTB 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 stability in demanding industrial environments.

In automotive applications, 71911 CD/P4ATBTB Bearing supports high-speed components like turbochargers and transmission systems. Its light preload and phenolic cage contribute to smooth performance under angular loads.

For medical imaging devices, 71911 CD/P4ATBTB Bearing’s P4A tolerance class guarantees the precision needed for reliable operation. The chrome steel construction also offers durability in continuous-use scenarios.

Automation & Robotics: Where 71911 CD/P4ATBTB Bearing Excels
71911 CD/P4ATBTB Bearing is ideal for robotic arms, providing the necessary precision for repetitive movements. Its high-speed capability makes it suitable for automated production lines.

In 3D printers, 71911 CD/P4ATBTB Bearing ensures smooth linear motion with minimal vibration. The open design allows for easy lubrication, extending the bearing’s service life.

Q&A

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