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Super Precision Angular Contact Ball Bearings 71911 ACE/HCPA9A

Super Precision Angular Contact Ball Bearings 71911 ACE/HCPA9A

The 71911 ACE/HCPA9A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 3330 lbf and reaches speeds of 39,000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures stability and longevity under demanding conditions.

The open design allows for easy lubrication, while the PA9A tolerance class guarantees precise performance. It works reliably in temperatures from -30°C to 110°C.

Ideal for precision machinery like spindles or high-speed tools, this bearing is interchangeable with SKF models. Weighing just 0.14kg, it offers a lightweight yet robust solution for angular contact needs.

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Product Parameters

  • Part Number 71911 ACE/HCPA9A
  • 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 PA9A
  • 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/HCPA9A dimension drawing
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Features

Performance Features of 71911 ACE/HCPA9A Bearing

71911 ACE/HCPA9A Bearing features a 25° contact angle, optimised for precision angular contact applications.
Its chrome steel rings and ceramic balls reduce friction, enhancing performance at high speeds.

The phenolic cage ensures smooth operation, even under dynamic radial loads up to 3330 lbf.
With a maximum speed of 39,000 rpm, it excels in high-speed scenarios.

71911 ACE/HCPA9A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its preload availability allows for fine-tuning to meet specific application requirements.

The open design simplifies lubrication, ensuring consistent performance over time.
Weighing just 0.14 kg, it offers a balance of strength and lightweight design.

Application

Key Fields for 71911 ACE/HCPA9A Bearing
71911 ACE/HCPA9A Bearing is commonly used in high-speed machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it suitable for precision grinding applications.

Where Is 71911 ACE/HCPA9A Bearing Used?
In automotive applications, 71911 ACE/HCPA9A Bearing supports components like turbochargers and electric motors, thanks to its high-speed capability and phenolic cage. The metric sizing ensures compatibility with various vehicle designs.

Perfect Fit for Automation: 71911 ACE/HCPA9A Bearing
For robotic arms and automated systems, 71911 ACE/HCPA9A Bearing offers reliable performance due to its chrome steel rings and preload availability. The open design allows for easy lubrication in continuous operation.

Medical vs Industrial: Where 71911 ACE/HCPA9A Bearing Excels
In medical imaging devices, 71911 ACE/HCPA9A Bearing’s ceramic balls provide smooth, quiet operation essential for sensitive equipment. Industrial pumps benefit from its high dynamic load capacity and temperature resistance.

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