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Super Precision Angular Contact Ball Bearings 71911 ACE/HCPA9ADGA

Super Precision Angular Contact Ball Bearings 71911 ACE/HCPA9ADGA

The 71911 ACE/HCPA9ADGA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from chrome steel for durability. It handles radial loads up to 5355 lbf and spins smoothly at speeds up to 39,000 RPM.

Its 25° contact angle and ceramic balls reduce friction, while the phenolic cage ensures quiet operation. The open design allows easy lubrication, making maintenance straightforward.

This bearing comes in a matched set of two, suitable for universal mounting (back-to-back, face-to-face, or tandem). Ideal for high-speed applications like machine tool spindles or precision instruments.

Weighing 0.29kg, it operates in temperatures from -30°C to 110°C. Compliant with PA9A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71911 ACE/HCPA9ADGA
  • 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 PA9A
  • 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 39000 rpm
  • Weight 0.29 kg
Super Precision Angular Contact Ball Bearings 71911 ACE/HCPA9ADGA dimension drawing
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Features

Performance Features of 71911 ACE/HCPA9ADGA Bearing

71911 ACE/HCPA9ADGA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction.

Its extra light preload (Class A) ensures smooth operation, ideal for high-speed applications up to 39,000 rpm.
The phenolic cage maintains ball alignment, improving performance under dynamic radial loads of 5355 lbf.

Universal matching allows flexible arrangements like back-to-back or face-to-face configurations.
This makes 71911 ACE/HCPA9ADGA Bearing versatile for various precision engineering needs.

The open design and lubrication ensure reliable performance within a temperature range of -30°C to 110°C.
With a static radial load capacity of 4500 lbf, it delivers consistent performance in demanding conditions.

Application

Key Fields for 71911 ACE/HCPA9ADGA Bearing
71911 ACE/HCPA9ADGA Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it ideal for applications demanding smooth operation.

In robotics, 71911 ACE/HCPA9ADGA Bearing supports articulated arms, providing stability during rapid movements. Its universal matching feature allows flexible installation in various configurations.

For aerospace components, 71911 ACE/HCPA9ADGA Bearing handles both radial and axial loads efficiently. The phenolic cage offers lightweight durability, crucial for flight systems.

Medical imaging devices benefit from 71911 ACE/HCPA9ADGA Bearing’s low vibration and high-speed capabilities. The PA9A tolerance class ensures consistent performance in sensitive equipment.

In automotive testing rigs, 71911 ACE/HCPA9ADGA Bearing’s extra light preload enhances precision during dynamic load simulations. The chrome steel rings provide long-lasting wear resistance.

Q&A

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