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Super Precision Angular Contact Ball Bearings 71911 ACE/HCP4AL

Super Precision Angular Contact Ball Bearings 71911 ACE/HCP4AL

The 71911 ACE/HCP4AL 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 spin at speeds up to 39,000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability and reduces friction.

With a preload option available, it offers enhanced stability for precise machinery. The open design allows for easy lubrication and maintenance. Ideal for use in spindle motors or precision tools where accuracy is key.

Weighing just 0.14kg, it’s lightweight yet robust. Compliant with P4A tolerance standards, it ensures reliable performance in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71911 ACE/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 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 No
  • Preload Available
  • 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
Super Precision Angular Contact Ball Bearings 71911 ACE/HCP4AL dimension drawing
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Features

Performance Features of 71911 ACE/HCP4AL Bearing

71911 ACE/HCP4AL Bearing is crafted with chrome steel rings and ceramic balls, offering high precision and durability.
Its 25° contact angle ensures efficient load distribution, making it suitable for angular contact applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 3330 lbf, it handles demanding conditions reliably.

71911 ACE/HCP4AL Bearing operates smoothly at speeds up to 39,000 rpm, balancing speed and stability.
Its open design allows for easy lubrication, ensuring consistent performance over time.

The P4A tolerance class guarantees precise operation, ideal for high-accuracy machinery.
Weighing just 0.14 kg, it combines lightweight design with robust functionality.

Application

Industrial Uses of 71911 ACE/HCP4AL Bearing
71911 ACE/HCP4AL Bearing is commonly used in high-speed machine tools, where its 25° contact angle ensures precise radial and axial load handling. The ceramic balls reduce friction, making it ideal for applications demanding smooth, efficient operation.

Where Is 71911 ACE/HCP4AL Bearing Used?
In automotive systems, 71911 ACE/HCP4AL Bearing supports components like electric motors and transmissions, thanks to its P4A tolerance class for high accuracy. The phenolic cage adds durability, even under continuous use.

Built for Heavy-Duty Use: 71911 ACE/HCP4AL Bearing
For automation equipment, 71911 ACE/HCP4AL Bearing excels in robotic arms and CNC machines, where its preload capability enhances stability. The lubricated design ensures long-lasting performance in demanding environments.

Medical vs Industrial: Where 71911 ACE/HCP4AL Bearing Excels
In medical imaging devices, 71911 ACE/HCP4AL Bearing’s chrome steel rings provide reliable precision, while its ceramic balls minimise heat generation. Industrial applications benefit from its high-speed capability, reaching up to 39,000 rpm.

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