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Super Precision Angular Contact Ball Bearings 708 ACE/P4A

Super Precision Angular Contact Ball Bearings 708 ACE/P4A

The 708 ACE/P4A is a super precision angular contact ball bearing with an 8mm bore and 22mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle for efficient load handling and spins smoothly at speeds up to 150,000 RPM.

Its open design and phenolic cage ensure durability and easy maintenance, while the P4 tolerance class guarantees precise performance. The bearing can handle dynamic radial loads up to 515 lbf and operates in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a versatile choice for replacements. Ideal for high-precision applications like machine tools or medical equipment where accuracy is key.

Weighing just 0.012kg, it’s lightweight yet robust for its size. Available with preload and matched arrangements for custom setups.

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Product Parameters

  • Part Number 708 ACE/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 8 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 22 mm
  • Outer Dia Tolerance -0.005mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 8
  • Contact Angle 25°
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 515 lbf
  • Static Radial Load 172 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 150000 rpm
  • Weight 0.012 kg
  • Price（$） 94.725
Super Precision Angular Contact Ball Bearings 708 ACE/P4A dimension drawing
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Features

Why Choose 708 ACE/P4A Bearing for Precision Tasks?

708 ACE/P4A Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel construction ensures durability and consistent performance under dynamic radial loads up to 515 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing speed capabilities up to 150,000 rpm.
With ABEC-7 (P4) tolerance, it delivers reliable accuracy for demanding industrial or instrumentation use.

708 ACE/P4A Bearing operates efficiently within a -30°C to 110°C range, suitable for varied environments.
Pre-lubricated and available with preload options, it simplifies installation while maintaining precision.

Application

How Does 708 ACE/P4A Bearing Improve Performance?
708 ACE/P4A Bearing is widely used in high-speed machine tools, where its 25° contact angle helps manage both radial and axial loads efficiently. The phenolic cage reduces friction, making it suitable for precision operations.

In robotics, 708 ACE/P4A Bearing ensures smooth movement in articulated arms, thanks to its P4 tolerance class. Its compact size and lightweight design fit well in tight spaces without compromising performance.

For medical imaging devices, 708 ACE/P4A Bearing’s chrome steel construction offers durability and consistent accuracy. The open seal design allows for easy lubrication, extending its service life in demanding environments.

Automotive applications like electric power steering benefit from 708 ACE/P4A Bearing’s ability to handle angular loads. Its matched arrangement option provides added stability for critical systems.

In 3D printers, 708 ACE/P4A Bearing supports precise linear motion, ensuring high-quality prints. The lubricated design minimises wear, even during prolonged use.

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