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Super Precision Angular Contact Ball Bearings 71908 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71908 CDGA/HCP4A

The 71908 CDGA/HCP4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from chrome steel for durability. It features a 15° contact angle and ceramic balls for smooth operation at high speeds, up to 56,000 RPM.

Its extra-light preload and P4A tolerance class ensure minimal friction and precise performance. The phenolic cage adds strength while keeping the weight low at just 0.1kg.

This open-design bearing is lubricated and works in temperatures from -30°C to 110°C. It handles dynamic radial loads up to 2790 lbf, making it suitable for high-precision applications.

Ideal for machine tools or spindle systems, it can be paired in back-to-back, face-to-face, or tandem arrangements. Compatible with SKF bearings, it offers flexibility for replacements or upgrades.

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Product Parameters

  • Part Number 71908 CDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 62 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 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • 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 2790 lbf
  • Static Radial Load 1912 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.1 kg
Super Precision Angular Contact Ball Bearings 71908 CDGA/HCP4A dimension drawing
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Features

Performance Features of 71908 CDGA/HCP4A Bearing

71908 CDGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 15° contact angle allows for efficient handling of combined radial and axial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 56,000 rpm, it excels in high-speed applications.

71908 CDGA/HCP4A Bearing operates smoothly within a temperature range of -30°C to 110°C.
Its extra light preload ensures minimal resistance, ideal for precision tasks.

The open design and lubricated system reduce maintenance needs while ensuring reliability.
Its P4A tolerance class guarantees consistent performance in demanding conditions.

Application

Common Applications of 71908 CDGA/HCP4A Bearing
71908 CDGA/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, 71908 CDGA/HCP4A Bearing supports articulated arms, providing stability and precision in repetitive movements. Its extra light preload helps maintain consistent performance over long operational periods.

For medical imaging devices, 71908 CDGA/HCP4A Bearing’s phenolic cage and chrome steel rings offer reliable performance in sterile environments. The P4A tolerance class ensures minimal vibration, crucial for clear imaging results.

Where Is 71908 CDGA/HCP4A Bearing Used?
71908 CDGA/HCP4A Bearing is a go-to choice for CNC machining centers, handling both radial and axial loads with ease. Its high-speed capability (up to 56,000 rpm) makes it suitable for demanding industrial applications.

In aerospace systems, 71908 CDGA/HCP4A Bearing’s lightweight design and ceramic balls contribute to fuel efficiency. The temperature range of -30°C to 110°C ensures reliability in varying flight conditions.

Built for Heavy-Duty Use: 71908 CDGA/HCP4A Bearing
71908 CDGA/HCP4A Bearing excels in automotive transmissions, where its angular contact design manages combined loads effectively. The lubricated construction extends service life even under continuous use.

For 3D printers, 71908 CDGA/HCP4A Bearing’s precision ensures smooth linear motion, enhancing print quality. The open seal type allows for easy maintenance, reducing downtime in production environments.

Automotive vs Aerospace: Applications of 71908 CDGA/HCP4A Bearing
In automotive applications, 71908 CDGA/HCP4A Bearing is often found in wheel hubs, offering durability and precision. Its metric sizing ensures compatibility with a wide range of vehicle designs.

For aerospace, 71908 CDGA/HCP4A Bearing is used in flight control systems, where its high-speed performance and reliability are critical. The ceramic balls reduce weight without compromising strength.

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