Super Precision Angular Contact Ball Bearings 71909 FEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71909 FEGA/HCP4A

The 71909 FEGA/HCP4A is a super precision angular contact bearing with a 45mm bore and 68mm outer diameter, crafted from chrome steel for durability. Its 18° contact angle and ceramic balls ensure smooth operation under radial loads up to 2272 lbf.

With a maximum speed of 41,000 RPM, this bearing is designed for high-performance applications. The phenolic cage adds stability, while the open design allows for easy lubrication.

This bearing comes in a matched set of two, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for precision machinery like spindles or high-speed tools where accuracy is key.

Weighing just 0.12kg, it meets P4A tolerance standards and operates in temperatures from -30°C to 110°C. A reliable choice for engineers needing consistent performance.

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Product Parameters

  • Part Number 71909 FEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 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 2272 lbf
  • Static Radial Load 1508 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.12 kg

Features

How Does 71909 FEGA/HCP4A Bearing Achieve High-Speed Performance?

71909 FEGA/HCP4A Bearing features ceramic balls and a phenolic cage, reducing friction for smoother high-speed operation.
Its extra light preload ensures minimal resistance, making it ideal for precision applications.
With a maximum speed of 41,000 rpm, it delivers reliable performance in demanding conditions.
The chrome steel rings provide durability, while the 18° contact angle enhances load distribution.

Application

Industrial Uses of 71909 FEGA/HCP4A Bearing
71909 FEGA/HCP4A Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate spindle performance.
The ceramic balls reduce friction, making it suitable for applications requiring smooth rotation at elevated speeds.

How Does 71909 FEGA/HCP4A Bearing Improve Performance?
In robotics, 71909 FEGA/HCP4A Bearing enhances motion control due to its extra light preload and phenolic cage, which minimise vibration.
Its P4A tolerance class guarantees consistent performance in demanding automated systems.

Perfect Fit for Automation: 71909 FEGA/HCP4A Bearing
71909 FEGA/HCP4A Bearing works well in 3D printers, where its 18° contact angle provides stability during precise movements.
The open seal design allows for easy lubrication, extending its lifespan in continuous operation.

Automotive vs Aerospace: Applications of 71909 FEGA/HCP4A Bearing
In automotive systems, 71909 FEGA/HCP4A Bearing supports electric motor shafts, benefiting from its high-speed capability.
For aerospace, its lightweight ceramic balls and chrome steel rings offer reliability in navigation equipment.

Where Is 71909 FEGA/HCP4A Bearing Used?
Medical imaging devices often use 71909 FEGA/HCP4A Bearing for its quiet operation and minimal heat generation.
The phenolic cage ensures compatibility with sterilisation processes, making it ideal for surgical tools.

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