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Super Precision Angular Contact Ball Bearings 71911 ACEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71911 ACEGA/HCP4A

The 71911 ACEGA/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 a 25° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 3330 lbf and can reach speeds of 39,000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability and reduces friction.

With an extra light preload (Class A), it offers precise movement and low noise. The open design allows for easy lubrication and maintenance. Ideal for machine tools or precision instruments where accuracy is key.

Weighing just 0.14kg, it’s lightweight yet robust. It can be used in back-to-back, face-to-face, or tandem arrangements, providing flexibility in installation. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71911 ACEGA/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 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • 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 3330 lbf
  • Static Radial Load 2250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 39000 rpm
  • Weight 0.14 kg
  • Price（$） 148.374
Super Precision Angular Contact Ball Bearings 71911 ACEGA/HCP4A dimension drawing
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Features

Performance Features of 71911 ACEGA/HCP4A Bearing

71911 ACEGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring smooth operation under high-speed conditions.
Its 25° contact angle provides excellent angular contact load capacity, making it suitable for precision applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 39,000 rpm, it delivers reliable performance in demanding environments.

71911 ACEGA/HCP4A Bearing’s extra light preload ensures minimal friction and optimal efficiency.
The P4A tolerance class guarantees high precision, meeting strict industry standards.

Its universal matching capability allows for flexible configurations like back-to-back or face-to-face arrangements.
This versatility makes it ideal for complex machinery requiring precise bearing setups.

The lubricated design reduces maintenance needs while ensuring consistent performance.
Operating between -30°C to 110°C, it adapts well to various temperature conditions.

Application

Industrial Uses of 71911 ACEGA/HCP4A Bearing
71911 ACEGA/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The extra light preload ensures smooth operation in precision grinding applications.

What Makes 71911 ACEGA/HCP4A Bearing a Preferred Choice?
In automotive applications, 71911 ACEGA/HCP4A Bearing supports high-performance gearboxes, thanks to its angular contact design and P4A tolerance class. The chrome steel rings provide durability under heavy radial loads.

Perfect Fit for Automation: 71911 ACEGA/HCP4A Bearing
71911 ACEGA/HCP4A Bearing excels in robotic arms, where its low friction and high-speed capability enhance movement accuracy. The open seal design allows for easy lubrication in demanding environments.

Medical vs Industrial: Where 71911 ACEGA/HCP4A Bearing Excels
For medical imaging devices, 71911 ACEGA/HCP4A Bearing offers reliable performance with minimal vibration. In industrial settings, its ceramic balls withstand high temperatures in spindle drives.

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