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Super Precision Angular Contact Ball Bearings S71911 CD/P4ADBA

Super Precision Angular Contact Ball Bearings S71911 CD/P4ADBA

The S71911 CD/P4ADBA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, 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 7020 lbf and spins smoothly at speeds up to 34,000 RPM, thanks to its phenolic cage and grease lubrication. Its sealed design keeps contaminants out for reliable operation.

With an extra-light preload and P4A tolerance class, it offers high accuracy for demanding applications. The matched pair arrangement ensures stability under angular loads.

Ideal for precision machinery like spindles or CNC equipment, it operates in temperatures from -30°C to 110°C. Weighing 0.37kg, it’s a robust yet compact solution for high-speed, high-accuracy needs.

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Product Parameters

  • Part Number S71911 CD/P4ADBA
  • 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 26 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 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • 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 7020 lbf
  • Static Radial Load 6525 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.37 kg
Super Precision Angular Contact Ball Bearings S71911 CD/P4ADBA dimension drawing
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Features

Performance Features of S71911 CD/P4ADBA Bearing

S71911 CD/P4ADBA Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and consistent performance under dynamic radial loads up to 7020 lbf.

The sealed design and grease lubrication reduce maintenance needs while protecting against contaminants.
With a maximum speed of 34,000 rpm, it delivers reliable high-speed operation.

Phenolic cage material enhances stability, keeping the 23 balls aligned for smooth rotation.
The extra light preload (Class A) ensures precision in demanding setups.

Operating between -30°C to 110°C, S71911 CD/P4ADBA Bearing maintains performance across varied temperatures.
Its matched pair arrangement (DB) provides balanced load handling for complex applications.

Application

Key Fields for S71911 CD/P4ADBA Bearing
S71911 CD/P4ADBA Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction keeps contaminants out, making it reliable for long-term use.

In automotive applications, S71911 CD/P4ADBA Bearing supports high-speed components like turbochargers and electric motors. Its extra light preload helps reduce friction, improving overall efficiency.

For medical imaging devices, S71911 CD/P4ADBA Bearing’s phenolic cage and chrome steel construction provide smooth, quiet operation. The P4A tolerance class ensures the precision needed for sensitive equipment.

In robotics, S71911 CD/P4ADBA Bearing is ideal for articulated arms and joints, thanks to its matched arrangement and high-speed capability. The grease lubrication ensures consistent performance even in demanding cycles.

Q&A

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