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Super Precision Angular Contact Ball Bearings 71808 ACDGA/HCP4

Super Precision Angular Contact Ball Bearings 71808 ACDGA/HCP4

The 71808 ACDGA/HCP4 is a super precision angular contact ball bearing with a 40mm bore and 52mm outer diameter, measuring just 7mm wide. Made from chrome steel and ceramic balls, it offers smooth operation and durability.

With a 25° contact angle, it handles radial loads up to 1010 lbf and spins at speeds up to 56,000 RPM. Its extra light preload ensures minimal friction, ideal for high-precision applications.

The open design allows easy lubrication, while the phenolic cage provides stability. Suitable for temperatures from -30°C to 110°C, it’s versatile for various environments.

This bearing is interchangeable with SKF models and comes in matched sets for back-to-back or face-to-face arrangements. Perfect for machine tools or high-speed spindles where precision is key. Weighing only 0.029kg, it’s lightweight yet robust.

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Product Parameters

  • Part Number 71808 ACDGA/HCP4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 52 mm
  • Outer Dia Tolerance -0.004mm 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
  • 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 1010 lbf
  • Static Radial Load 1024 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.029 kg
Super Precision Angular Contact Ball Bearings 71808 ACDGA/HCP4 dimension drawing
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Features

Performance Features of 71808 ACDGA/HCP4 Bearing

71808 ACDGA/HCP4 Bearing is crafted with chrome steel rings and ceramic balls, ensuring smooth operation under angular contact loads.
Its dynamic radial load capacity of 1010 lbf makes it suitable for high-precision applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 56,000 rpm, it delivers efficient performance in demanding conditions.

71808 ACDGA/HCP4 Bearing operates within a temperature range of -30°C to 110°C, adapting to various environments.
Its P4 tolerance class ensures consistent precision and reliability.

The extra light preload design minimises energy loss, improving overall efficiency.
This bearing is universally matchable, offering flexibility in mounting configurations.

Application

Common Applications of 71808 ACDGA/HCP4 Bearing
71808 ACDGA/HCP4 Bearing is widely used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The 25° contact angle ensures stable performance under combined radial and axial loads.

In robotics, 71808 ACDGA/HCP4 Bearing provides precise motion control for articulated arms, thanks to its P4 tolerance class. Its lightweight design also helps reduce overall system inertia.

For dental drills and other medical devices, 71808 ACDGA/HCP4 Bearing offers smooth operation at high RPMs. The chrome steel rings and ceramic balls ensure long service life in sterile environments.

Where Is 71808 ACDGA/HCP4 Bearing Used?
You’ll often find 71808 ACDGA/HCP4 Bearing in aerospace applications like gyroscopes, where its extra-light preload minimizes vibration. The metric dimensions make it easy to integrate into European-designed systems.

In 3D printers, 71808 ACDGA/HCP4 Bearing maintains positional accuracy during rapid movements. The open design allows for easy relubrication in dusty workshop environments.

Built for Versatility: 71808 ACDGA/HCP4 Bearing
71808 ACDGA/HCP4 Bearing works equally well in back-to-back or tandem configurations for different load requirements. This flexibility makes it popular in test equipment and measuring devices.

The bearing’s wide temperature range (-30°C to 110°C) suits both indoor lab equipment and outdoor industrial applications. Users appreciate its consistent performance across various operating conditions.

Automotive vs Aerospace: Applications of 71808 ACDGA/HCP4 Bearing
In automotive turbochargers, 71808 ACDGA/HCP4 Bearing handles extreme rotational speeds while maintaining stability. The ceramic balls resist degradation from heat and centrifugal forces.

For satellite components, the bearing’s P4 precision ensures reliable operation in zero-gravity conditions. Its minimal lubrication requirements reduce maintenance needs in space applications.

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