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Super Precision Angular Contact Ball Bearings S71920 CD/P4ADBA

Super Precision Angular Contact Ball Bearings S71920 CD/P4ADBA

The S71920 CD/P4ADBA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. Its sealed design and grease lubrication ensure smooth operation with minimal maintenance.

This bearing handles radial loads up to 21938 lbf and spins at speeds up to 16250 RPM, making it suitable for high-performance applications. The 15° contact angle and extra-light preload enhance stability and precision.

With a matched arrangement of two bearings, it offers balanced load distribution and reduced vibration. The phenolic cage adds durability while keeping the weight manageable at 1.63kg.

Ideal for precision machinery like spindles or CNC equipment, it operates efficiently in temperatures from -30°C to 110°C. Compliant with P4A tolerance standards, it’s a reliable choice for demanding environments.

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Product Parameters

  • Part Number S71920 CD/P4ADBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • 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 21938 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 1.63 kg
Super Precision Angular Contact Ball Bearings S71920 CD/P4ADBA dimension drawing
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Features

Performance Features of S71920 CD/P4ADBA Bearing

S71920 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, while the phenolic cage reduces friction and wear.

The bearing’s dynamic radial load capacity of 21938 lbf makes it suitable for high-performance machinery.
With a maximum speed of 16,250 rpm, it delivers reliable operation in demanding conditions.

S71920 CD/P4ADBA Bearing comes pre-lubricated with grease, reducing maintenance needs.
Its sealed design protects against contaminants, ensuring long-lasting performance.

The matched arrangement of two bearings provides extra stability and precision.
Its P4A tolerance class guarantees consistent accuracy for critical applications.

Application

Industrial Uses of S71920 CD/P4ADBA Bearing
S71920 CD/P4ADBA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

In robotics, S71920 CD/P4ADBA Bearing supports articulated arms, providing smooth movement and reliability in repetitive tasks. The matched arrangement of two bearings enhances stability for demanding applications.

For medical imaging devices, S71920 CD/P4ADBA Bearing’s phenolic cage and chrome steel components offer durability and consistent performance. Its extra-light preload makes it suitable for sensitive equipment requiring minimal friction.

Automotive vs Aerospace: Applications of S71920 CD/P4ADBA Bearing
In automotive systems, S71920 CD/P4ADBA Bearing is found in high-performance transmissions, where its precision handling of radial loads is crucial. The grease lubrication ensures long service life even under constant use.

Aerospace applications benefit from S71920 CD/P4ADBA Bearing’s ability to handle high speeds and angular loads in components like landing gear systems. The P4A tolerance class guarantees reliability in critical flight conditions.

What Makes S71920 CD/P4ADBA Bearing a Preferred Choice?
S71920 CD/P4ADBA Bearing stands out in automation systems due to its consistent performance and low maintenance needs. The 15° contact angle optimises load distribution for smoother operation.

Its compatibility with SKF equivalents makes S71920 CD/P4ADBA Bearing a versatile option for various industrial upgrades. The phenolic cage reduces weight while maintaining strength, ideal for high-speed applications.

Q&A

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