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Super Precision Angular Contact Ball Bearings 71911 FE/HCP4ADT

Super Precision Angular Contact Ball Bearings 71911 FE/HCP4ADT

The 71911 FE/HCP4ADT is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 5648 lbf and spins smoothly at speeds up to 34,000 RPM.

Its 18° contact angle and matched arrangement of two bearings provide excellent stability for high-precision applications. The phenolic cage ensures quiet operation and long service life.

This bearing comes pre-lubricated and operates efficiently in temperatures from -30°C to 110°C. Ideal for machine tools or high-speed spindles where precision and reliability are key.

Weighing just 0.29kg, it’s lightweight yet robust, and interchangeable with SKF bearings for easy replacement. Compliant with P4A tolerance class for superior performance.

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Product Parameters

  • Part Number 71911 FE/HCP4ADT
  • 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 21
  • Contact Angle 18°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings << DT
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 5648 lbf
  • Static Radial Load 4680 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.29 kg
Super Precision Angular Contact Ball Bearings 71911 FE/HCP4ADT dimension drawing
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Features

Performance Features of 71911 FE/HCP4ADT Bearing

71911 FE/HCP4ADT Bearing is designed with a precise 18° contact angle, optimising load distribution for angular contact applications.
Its ceramic balls and chrome steel rings enhance durability and reduce friction during high-speed operation.

The phenolic cage maintains ball alignment, ensuring smooth performance even at speeds up to 34,000 rpm.
With a dynamic radial load capacity of 5648 lbf, it handles demanding conditions reliably.

Preloaded and matched in pairs, 71911 FE/HCP4ADT Bearing offers consistent precision for critical applications.
Its open design allows for easy lubrication, extending service life in various operating conditions.

Application

Industrial Uses of 71911 FE/HCP4ADT Bearing
71911 FE/HCP4ADT Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for high-speed operations.

In automotive applications, 71911 FE/HCP4ADT Bearing supports performance in gearboxes and differential systems. Its matched arrangement provides stability under varying loads, enhancing vehicle efficiency.

For robotics, 71911 FE/HCP4ADT Bearing offers reliable motion control in articulated arms and joints. The phenolic cage material ensures quiet operation, which is essential in sensitive environments.

Medical imaging devices benefit from 71911 FE/HCP4ADT Bearing’s precision and low heat generation. The P4A tolerance class guarantees consistent performance in critical diagnostic equipment.

In aerospace systems, 71911 FE/HCP4ADT Bearing handles both radial and axial loads in navigation instruments. Its lightweight design and high-speed capability make it ideal for flight control mechanisms.

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