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Super Precision Angular Contact Ball Bearings 71808 ACD/HCP4

Super Precision Angular Contact Ball Bearings 71808 ACD/HCP4

The 71808 ACD/HCP4 is a super precision angular contact ball bearing with a compact 40mm bore and 52mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle ensures smooth handling of combined radial and axial loads.

With a dynamic radial load capacity of 1010 lbf and a max speed of 43,000 RPM, it’s built for high-performance applications. The ceramic balls and phenolic cage reduce friction, enhancing durability and efficiency.

The open design allows easy lubrication, while the P4 tolerance class guarantees precise operation. Ideal for CNC spindles or high-speed machinery where accuracy is key.

Weighing just 0.029kg, it’s lightweight yet robust. Suitable for temperatures from -30°C to 110°C, making it versatile for various industrial uses.

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Product Parameters

  • Part Number 71808 ACD/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 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1010 lbf
  • Static Radial Load 1024 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 43000 rpm
  • Weight 0.029 kg
  • Price（$） 347.796
Super Precision Angular Contact Ball Bearings 71808 ACD/HCP4 dimension drawing
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Features

Performance Features of 71808 ACD/HCP4 Bearing

71808 ACD/HCP4 Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction.

With a dynamic radial load capacity of 1010 lbf, it ensures reliable performance under stress.
Its phenolic cage maintains ball alignment, contributing to smooth operation.

The bearing operates at speeds up to 43,000 rpm, making it suitable for high-speed applications.
Its P4 tolerance class ensures precision, meeting demanding performance standards.

71808 ACD/HCP4 Bearing functions in temperatures from -30° to 110°C, adapting to various environments.
The lubricated design reduces maintenance needs, extending service life.

Application

Key Fields for 71808 ACD/HCP4 Bearing
71808 ACD/HCP4 Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for applications demanding smooth operation.

In robotics, 71808 ACD/HCP4 Bearing supports articulated arms, providing stability during precise movements. Its phenolic cage offers lightweight durability, ideal for repetitive tasks in automated systems.

For medical imaging devices, 71808 ACD/HCP4 Bearing’s P4 tolerance class guarantees minimal vibration, crucial for clear diagnostic results. The open seal design allows for easy lubrication, extending service life in critical environments.

Where Is 71808 ACD/HCP4 Bearing Used?
You’ll often find 71808 ACD/HCP4 Bearing in CNC machining centres, where its high-speed capability and low heat generation are key advantages. The 25° contact angle handles combined loads efficiently.

In aerospace applications, 71808 ACD/HCP4 Bearing contributes to reliable performance in actuator systems. Its ceramic balls and chrome steel rings withstand varying temperatures without compromising precision.

Built for Heavy-Duty Use: 71808 ACD/HCP4 Bearing
71808 ACD/HCP4 Bearing excels in industrial gearboxes, where its dynamic radial load capacity ensures longevity under constant stress. The lubricated design reduces maintenance needs in harsh conditions.

For 3D printers, 71808 ACD/HCP4 Bearing provides the necessary precision for smooth linear motion. Its compact 40mm bore fits seamlessly into most printer frame designs.

Automotive vs Aerospace: Applications of 71808 ACD/HCP4 Bearing
In automotive turbochargers, 71808 ACD/HCP4 Bearing handles high rotational speeds with minimal wear. The phenolic cage dampens vibrations, improving engine efficiency.

For satellite positioning systems, 71808 ACD/HCP4 Bearing’s ceramic components offer thermal stability in extreme conditions. Its ABEC-7 tolerance ensures accurate tracking performance.

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