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Super Precision Angular Contact Ball Bearings 71911 FEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71911 FEGA/HCP4A

The 71911 FEGA/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 compact width of 13mm and is designed for angular contact loads with an 18° contact angle.

This bearing handles dynamic radial loads up to 3442 lbf and spins smoothly at speeds up to 34,000 RPM, thanks to its ceramic balls and phenolic cage. Its extra-light preload ensures minimal friction during operation.

The open design allows for easy lubrication, while the P4A tolerance class guarantees high precision. It works reliably in temperatures ranging from -30°C to 110°C.

Ideal for high-speed applications like machine tool spindles or precision instruments, this bearing is interchangeable with SKF models. Weighing just 0.14kg, it’s lightweight yet durable for its size.

It can be paired in back-to-back, face-to-face, or tandem arrangements, offering flexibility for various setups. A versatile choice for demanding engineering tasks.

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Product Parameters

  • Part Number 71911 FEGA/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 18°
  • 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 3442 lbf
  • Static Radial Load 2340 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.14 kg
Super Precision Angular Contact Ball Bearings 71911 FEGA/HCP4A dimension drawing
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Features

Performance Features of 71911 FEGA/HCP4A Bearing

71911 FEGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, offering high precision and durability.
Its 18° contact angle ensures efficient handling of combined radial and axial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 34,000 rpm, it excels in high-speed applications.

71911 FEGA/HCP4A Bearing operates smoothly within a temperature range of -30°C to 110°C.
Its P4A tolerance class guarantees consistent accuracy and reliability.

The extra light preload design minimises vibration and noise.
This makes 71911 FEGA/HCP4A Bearing ideal for precision machinery and demanding environments.

Application

Common Applications of 71911 FEGA/HCP4A Bearing
71911 FEGA/HCP4A 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 FEGA/HCP4A Bearing supports articulated arms, providing stability and precision in repetitive movements. Its phenolic cage offers lightweight durability, perfect for dynamic robotic systems.

For medical imaging devices, 71911 FEGA/HCP4A Bearing’s P4A tolerance class ensures reliable performance in sensitive equipment. The open design allows for easy lubrication, extending its service life in critical medical applications.

Automotive enthusiasts appreciate 71911 FEGA/HCP4A Bearing in performance gearboxes, where its extra light preload enhances shifting smoothness. The metric sizing ensures compatibility with a variety of high-performance vehicles.

In 3D printers, 71911 FEGA/HCP4A Bearing’s high-speed capability and low friction contribute to precise layer deposition. Its chrome steel rings provide the necessary durability for continuous printing operations.

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