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Super Precision Angular Contact Ball Bearings S71911 CD/P4ATBTA

Super Precision Angular Contact Ball Bearings S71911 CD/P4ATBTA

The S71911 CD/P4ATBTA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel. Its compact design, measuring 55mm x 80mm x 39mm, makes it suitable for tight spaces.

This bearing handles radial loads up to 9360 lbf and spins smoothly at speeds up to 34,000 RPM. The 15° contact angle and sealed design ensure reliable performance in demanding conditions.

Its phenolic cage and matched arrangement of three bearings (TBT) provide extra stability and durability. Preloaded for extra light operation, it’s ideal for high-precision applications.

Perfect for machine tools or spindle drives, this bearing works in temperatures from -30°C to 110°C. Weighing 0.55kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards for precision engineering.

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Product Parameters

  • Part Number S71911 CD/P4ATBTA
  • 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 Sealed
  • Matched Arrangement 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • 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 Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.55 kg
Super Precision Angular Contact Ball Bearings S71911 CD/P4ATBTA dimension drawing
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Features

How Does S71911 CD/P4ATBTA Bearing Ensure Precision in High-Speed Applications?

S71911 CD/P4ATBTA Bearing features a 15° contact angle, optimised for handling combined radial and axial loads with high precision.
Its chrome steel construction and phenolic cage provide stability and reduced friction at speeds up to 34,000 rpm.

The sealed design protects against contaminants, ensuring consistent performance in demanding conditions.
With an extra-light preload (Class A), it minimises vibration and enhances operational smoothness.

S71911 CD/P4ATBTA Bearing’s matched set arrangement (3 bearings > TBT) improves load distribution and longevity.
Its P4A tolerance class guarantees exceptional accuracy for critical applications.

Application

Common Applications of S71911 CD/P4ATBTA Bearing
S71911 CD/P4ATBTA Bearing is widely used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The sealed construction helps maintain lubrication, reducing maintenance needs in demanding environments.

In robotics, S71911 CD/P4ATBTA Bearing supports articulated arms, providing smooth movement and reliability. Its phenolic cage offers durability, making it suitable for continuous operation in automated systems.

For aerospace applications, S71911 CD/P4ATBTA Bearing’s extra light preload and high-speed capability make it ideal for flight control systems. The chrome steel construction ensures it can handle both radial and axial loads effectively.

In medical imaging devices, S71911 CD/P4ATBTA Bearing’s precision and low noise operation are crucial for maintaining image quality. The grease lubrication ensures long-term performance without frequent servicing.

S71911 CD/P4ATBTA Bearing is also found in electric vehicle motors, where its high-speed tolerance and durability support efficient power transmission. The matched arrangement of three bearings enhances stability under varying loads.

Q&A

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