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Super Precision Angular Contact Ball Bearings 71911 ACE/HCP4ADGA

Super Precision Angular Contact Ball Bearings 71911 ACE/HCP4ADGA

The 71911 ACE/HCP4ADGA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from chrome steel for durability. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 5355 lbf.

With a max speed of 46,000 RPM, this bearing is designed for high-speed applications. The phenolic cage and open design allow for easy lubrication and maintenance, even in temperatures from -30°C to 110°C.

This universal matching bearing comes in a set of two, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for precision machinery like spindles or CNC equipment where accuracy and speed are crucial.

Weighing just 0.29kg, it meets P4A tolerance standards for exceptional performance. A reliable choice for engineers needing interchangeable options with SKF bearings.

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Product Parameters

  • Part Number 71911 ACE/HCP4ADGA
  • 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 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • 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 5355 lbf
  • Static Radial Load 4500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.29 kg
  • Price（$） 296.748
Super Precision Angular Contact Ball Bearings 71911 ACE/HCP4ADGA dimension drawing
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Features

Performance Features of 71911 ACE/HCP4ADGA Bearing

71911 ACE/HCP4ADGA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage ensures smooth operation, even at high speeds up to 46,000 rpm.
This bearing is preloaded for extra light performance, making it ideal for precision tasks.

With universal matching capability, 71911 ACE/HCP4ADGA Bearing can be arranged back-to-back, face-to-face, or tandem.
Its P4A tolerance class guarantees high precision and reliability in demanding conditions.

The dynamic radial load capacity of 5355 lbf ensures robust performance under stress.
Lubrication is pre-applied, simplifying initial setup and reducing maintenance needs.

71911 ACE/HCP4ADGA Bearing operates efficiently in temperatures from -30°C to 110°C.
Its matched set of two bearings provides consistent performance in paired applications.

Application

Ideal for Precision: 71911 ACE/HCP4ADGA Bearing
The 71911 ACE/HCP4ADGA Bearing excels in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction for smoother operation. Its P4A tolerance ensures accuracy in demanding industrial settings.

In robotics, this bearing supports precise movements in articulated arms, thanks to its 25° contact angle and universal matching design. The extra-light preload also minimises vibration during rapid directional changes.

For medical imaging devices, the 71911 ACE/HCP4ADGA Bearing’s chrome steel rings provide durability under constant use. The open seal design allows for easy relubrication, extending service life in critical applications.

Automotive testing equipment benefits from this bearing’s ability to handle combined radial and axial loads. Its metric sizing makes it compatible with European precision instruments.

In 3D printing, the bearing’s high-speed capability (up to 46,000 rpm) ensures consistent layer deposition. The ceramic balls also resist wear from continuous operation in automated systems.

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