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Super Precision Angular Contact Ball Bearings 71911 ACDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71911 ACDGA/HCP4A

The 71911 ACDGA/HCP4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It features ceramic balls and a phenolic cage for smooth operation at high speeds.

With a 25° contact angle, it handles radial loads up to 4095 lbf and spins at speeds up to 46,000 RPM. Its extra-light preload ensures minimal friction, making it ideal for precision applications.

The open design allows for easy lubrication, while the P4A tolerance class guarantees exceptional accuracy. Suitable for paired arrangements like back-to-back or face-to-face setups.

Perfect for high-speed machinery, CNC spindles, or other applications demanding precision and reliability. Weighing just 0.15kg, it’s lightweight yet durable for its size.

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Product Parameters

  • Part Number 71911 ACDGA/HCP4A
  • 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
  • Price（$） 152.514
Super Precision Angular Contact Ball Bearings 71911 ACDGA/HCP4A dimension drawing
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Features

Performance Features of 71911 ACDGA/HCP4A Bearing

71911 ACDGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring smooth operation under high-speed conditions.
Its dynamic radial load capacity of 4095 lbf makes it suitable for demanding applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 46,000 rpm, it excels in precision tasks.

71911 ACDGA/HCP4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its open design allows for easy lubrication, ensuring consistent performance.

The extra light preload class A ensures minimal friction and noise.
This makes 71911 ACDGA/HCP4A Bearing ideal for high-precision machinery.

Application

Industrial Uses of 71911 ACDGA/HCP4A Bearing
71911 ACDGA/HCP4A Bearing is commonly used in high-speed machine tools, where its precision and ceramic balls reduce friction and heat buildup. The open design and phenolic cage make it suitable for environments requiring minimal lubrication.

In automotive applications, 71911 ACDGA/HCP4A Bearing supports components like electric motors and transmissions, ensuring smooth performance under angular loads. Its P4A tolerance class guarantees consistent accuracy in demanding conditions.

For robotics, 71911 ACDGA/HCP4A Bearing excels in articulated arms and joints, thanks to its lightweight and high-speed capabilities. The ceramic balls also contribute to longer service life in repetitive motion scenarios.

Medical imaging devices benefit from 71911 ACDGA/HCP4A Bearing’s quiet operation and precision, essential for accurate diagnostics. The chrome steel rings provide durability in sterile environments.

In consumer electronics, 71911 ACDGA/HCP4A Bearing is found in high-performance fans and printers, where its low noise and reliability are valued. The extra light preload ensures smooth rotation without unnecessary resistance.

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