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Super Precision Angular Contact Ball Bearings 71808 CD/HCP4

Super Precision Angular Contact Ball Bearings 71808 CD/HCP4

The 71808 CD/HCP4 is a super precision angular contact ball bearing with a 40mm bore and 52mm outer diameter, designed for high-speed applications. Its compact 7mm width makes it suitable for tight spaces, while the 15° contact angle helps manage combined loads.

Made from chrome steel with ceramic balls, it offers smooth operation and can handle speeds up to 45,000 RPM. The phenolic cage ensures durability and reduces friction, ideal for precision machinery.

This open-design bearing comes pre-lubricated and is interchangeable with SKF models. It works well in temperatures from -30°C to 110°C, making it versatile for various industrial uses.

With a P4 tolerance class, it’s perfect for applications requiring high accuracy, such as machine tools or spindle drives. Weighing just 0.029kg, it’s lightweight yet robust.

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Product Parameters

  • Part Number 71808 CD/HCP4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 52 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 29
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1098 lbf
  • Static Radial Load 1102 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 45000 rpm
  • Weight 0.029 kg
  • Price（$） 348.66
Super Precision Angular Contact Ball Bearings 71808 CD/HCP4 dimension drawing
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Features

Performance Features of 71808 CD/HCP4 Bearing

71808 CD/HCP4 Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage ensures smooth operation, even at high speeds up to 45,000 rpm.
With a dynamic radial load capacity of 1098 lbf, it delivers reliable performance in precision tasks.

Preload options are available, allowing for customised performance in matched arrangements.
Its P4 tolerance class ensures high precision, making it suitable for demanding applications.

The open design simplifies lubrication, maintaining efficiency over time.
Operating between -30° to 110°C, it adapts well to various environmental conditions.

Application

Industrial Uses of 71808 CD/HCP4 Bearing
The 71808 CD/HCP4 Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. Its ceramic balls reduce friction, making it ideal for applications requiring smooth rotation.

In automotive systems, 71808 CD/HCP4 Bearing supports components like electric motors and gearboxes, where its durability and high-speed capability are key. The P4 tolerance class ensures reliable operation in demanding conditions.

For medical imaging devices, 71808 CD/HCP4 Bearing’s phenolic cage and chrome steel rings provide stability and low noise. Its lightweight design is perfect for compact, high-precision equipment.

Where Is 71808 CD/HCP4 Bearing Used?
You’ll often find 71808 CD/HCP4 Bearing in robotics, particularly in robotic arms that require precise movement. Its matched arrangement option allows for better load distribution in complex setups.

The bearing also works well in 3D printers, where its high-speed performance and low friction contribute to print accuracy. Its open design simplifies maintenance in long-running operations.

Built for Heavy-Duty Use: 71808 CD/HCP4 Bearing
In industrial fans and pumps, 71808 CD/HCP4 Bearing handles radial and axial loads with ease. Its lubricated design ensures long service life even in continuous operation.

For aerospace applications, the bearing’s ceramic balls and high-temperature tolerance make it a reliable choice. Its lightweight construction is an added benefit for weight-sensitive projects.

Automotive vs Aerospace: Applications of 71808 CD/HCP4 Bearing
In cars, 71808 CD/HCP4 Bearing is often used in transmission systems, where its angular contact design improves efficiency. Its high-speed rating suits both standard and performance vehicles.

For aircraft, the bearing’s precision and durability are crucial in avionics and control systems. The ceramic balls reduce wear, ensuring consistent performance over time.

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