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Super Precision Angular Contact Ball Bearings 71911 ACDGA/HCP4AL

Super Precision Angular Contact Ball Bearings 71911 ACDGA/HCP4AL

The 71911 ACDGA/HCP4AL is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle ensures smooth handling of combined radial and axial loads.

With ceramic balls and a phenolic cage, it offers low friction and high-speed performance, reaching up to 46,000 RPM. The extra-light preload (Class A) enhances precision in demanding applications.

This open-design bearing is lubricated for easy maintenance and operates in temperatures from -30°C to 110°C. It’s part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements.

Ideal for high-precision machinery like spindles or CNC tools, it’s interchangeable with SKF bearings. Weighing just 0.15kg, it balances lightweight design with robust performance.

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Product Parameters

  • Part Number 71911 ACDGA/HCP4AL
  • 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 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 23
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 4095 lbf
  • Static Radial Load 3082 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.15 kg
Super Precision Angular Contact Ball Bearings 71911 ACDGA/HCP4AL dimension drawing
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Features

Performance Features of 71911 ACDGA/HCP4AL Bearing

71911 ACDGA/HCP4AL Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 25° contact angle provides excellent angular contact performance for various load directions.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a dynamic radial load capacity of 4095 lbf, it handles demanding applications with ease.

71911 ACDGA/HCP4AL Bearing operates at speeds up to 46,000 rpm, making it suitable for high-speed machinery.
Its extra light preload ensures minimal resistance, contributing to energy efficiency.

The bearing’s temperature range of -30°C to 110°C allows reliable performance in diverse environments.
Its universal matching capability enables flexible configurations for different setups.

Application

Industrial Uses of 71911 ACDGA/HCP4AL Bearing
71911 ACDGA/HCP4AL Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4A tolerance ensures precise alignment, crucial for maintaining accuracy in CNC machining.

In automotive applications, 71911 ACDGA/HCP4AL Bearing supports components like turbochargers and electric motors, benefiting from its angular contact design. The extra-light preload helps minimise energy loss, improving overall efficiency.

For medical imaging devices, 71911 ACDGA/HCP4AL Bearing’s chrome steel rings provide stability under radial loads. Its open design allows for easy lubrication, extending service life in demanding environments.

Automation systems often rely on 71911 ACDGA/HCP4AL Bearing for robotic arms, where its high-speed capability and low vibration are key. The universal matching option simplifies installation in complex setups.

Q&A

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