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Super Precision Angular Contact Ball Bearings 71911 CD/P4ADBA

Super Precision Angular Contact Ball Bearings 71911 CD/P4ADBA

The 71911 CD/P4ADBA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and comes in a matched set of two bearings for balanced performance.

This bearing handles radial loads up to 7020 lbf and spins smoothly at speeds up to 34,000 RPM. Its phenolic cage ensures durability while keeping the weight low at just 0.36kg.

The open design allows for easy lubrication, and it operates efficiently in temperatures from -30°C to 110°C. With an extra light preload (Class A), it offers precise movement and reduced friction.

Ideal for high-precision applications like machine tool spindles or high-speed robotics. Its P4A tolerance class ensures exceptional accuracy, making it a reliable choice for demanding environments.

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Product Parameters

  • Part Number 71911 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 Open
  • 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 Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.36 kg
Super Precision Angular Contact Ball Bearings 71911 CD/P4ADBA dimension drawing
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Features

Performance Features of 71911 CD/P4ADBA Bearing

71911 CD/P4ADBA Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 7020 lbf, it handles demanding conditions reliably.
The extra light preload (Class A) reduces friction, improving efficiency and extending service life.

71911 CD/P4ADBA Bearing operates at speeds up to 34,000 rpm, making it suitable for high-performance machinery.
Its matched arrangement (2 bearings DB) ensures stability and precision in angular contact applications.

The open seal design allows for easy lubrication, maintaining optimal performance.
Its temperature range of -30°C to 110°C ensures reliability in varied environments.

Application

Key Fields for 71911 CD/P4ADBA Bearing
71911 CD/P4ADBA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability under radial and axial loads.

In robotics, 71911 CD/P4ADBA Bearing supports articulated arms, offering smooth movement and low friction. Its phenolic cage reduces wear, making it suitable for continuous operation.

For aerospace applications, 71911 CD/P4ADBA Bearing’s chrome steel construction handles high speeds and temperatures. The extra light preload ensures minimal vibration in critical systems.

Automotive testing equipment benefits from 71911 CD/P4ADBA Bearing’s precision, particularly in dynamometers. The P4A tolerance class guarantees consistent performance under demanding conditions.

Medical imaging devices rely on 71911 CD/P4ADBA Bearing for quiet and reliable operation. Its open design allows for easy lubrication, extending service life in sensitive environments.

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