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Super Precision Angular Contact Ball Bearings 71911 CE/HCPA9AQBCA

Super Precision Angular Contact Ball Bearings 71911 CE/HCPA9AQBCA

The 71911 CE/HCPA9AQBCA 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 15° contact angle and comes in a matched set of four bearings for balanced performance.

With a dynamic radial load capacity of 9225 lbf, it handles high speeds up to 34,000 RPM smoothly. The ceramic balls and phenolic cage reduce friction, ensuring efficient operation even under demanding conditions.

Its open design allows for easy lubrication, while the extra light preload (Class A) ensures minimal resistance. Ideal for precision applications like machine tool spindles or high-speed robotics.

The bearing operates reliably in temperatures from -30°C to 110°C and weighs just 0.58kg. Compliant with PA9A tolerance standards, it’s a top choice for engineers needing accuracy and durability.

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Product Parameters

  • Part Number 71911 CE/HCPA9AQBCA
  • 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 52 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 21
  • Contact Angle 15°
  • Tolerance Class PA9A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 9225 lbf
  • Static Radial Load 9562 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.58 kg
Super Precision Angular Contact Ball Bearings 71911 CE/HCPA9AQBCA dimension drawing
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Features

Performance Features of 71911 CE/HCPA9AQBCA Bearing

71911 CE/HCPA9AQBCA Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.
The chrome steel rings and ceramic balls enhance durability and reduce friction.

With a dynamic radial load capacity of 9225 lbf, it handles demanding conditions reliably.
Its phenolic cage ensures smooth operation and maintains ball alignment.

The bearing set includes four matched units, providing consistent performance.
It operates at speeds up to 34,000 rpm, making it suitable for high-speed applications.

71911 CE/HCPA9AQBCA Bearing works in temperatures from -30°C to 110°C, ensuring versatility.
Its extra light preload (Class A) minimises friction and improves efficiency.

Application

Key Fields for 71911 CE/HCPA9AQBCA Bearing
71911 CE/HCPA9AQBCA Bearing is widely used in high-speed machine tools, where its precision and ceramic balls reduce friction and improve accuracy. The matched set of four bearings ensures stability in demanding operations.

In aerospace applications, 71911 CE/HCPA9AQBCA Bearing supports critical components like turbine shafts, thanks to its high-speed capability and reliable performance. The phenolic cage adds durability under extreme conditions.

For automation systems, 71911 CE/HCPA9AQBCA Bearing enhances the performance of robotic arms, providing smooth movement and long service life. Its extra light preload makes it ideal for precise, repetitive tasks.

Medical imaging devices benefit from 71911 CE/HCPA9AQBCA Bearing’s low vibration and high precision, ensuring clear and accurate results. The chrome steel rings and ceramic balls contribute to its consistent operation.

In electric motors, 71911 CE/HCPA9AQBCA Bearing reduces energy loss and extends lifespan, making it a cost-effective choice. The open design allows for easy lubrication and maintenance.

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