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Super Precision Angular Contact Ball Bearings S71908 CB/P4A

Super Precision Angular Contact Ball Bearings S71908 CB/P4A

The S71908 CB/P4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and comes sealed for protection, with matched arrangements and preload options available.

This bearing handles radial loads up to 1215 lbf and operates smoothly at speeds up to 30,000 RPM. Its phenolic cage ensures durability, while the lubricated design reduces friction for long-lasting performance.

With a tight P4 tolerance class, it offers excellent precision for demanding applications. Ideal for high-speed machinery, spindles, or precision tools where accuracy is key.

Weighing just 0.12kg, 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 S71908 CB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 28
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1215 lbf
  • Static Radial Load 934 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 30000 rpm
  • Weight 0.12 kg
  • Price（$） 346.266
Super Precision Angular Contact Ball Bearings S71908 CB/P4A dimension drawing
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Features

Why Choose S71908 CB/P4A Bearing for Precision Tasks?

S71908 CB/P4A Bearing features a 15° contact angle, ideal for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 1215 lbf, it handles demanding tasks with ease.
The P4 tolerance class guarantees exceptional accuracy, making it suitable for precision instruments.

Sealed and preloaded, S71908 CB/P4A Bearing requires minimal maintenance.
It operates efficiently at speeds up to 30,000 rpm, balancing performance and longevity.

Application

How Does S71908 CB/P4A Bearing Improve Performance?
S71908 CB/P4A Bearing is widely used in high-speed machine tools, where its angular contact design ensures precise alignment and smooth rotation. The sealed construction helps maintain lubrication, reducing maintenance needs in demanding industrial environments.

In robotics, S71908 CB/P4A Bearing provides reliable support for articulated arms, thanks to its phenolic cage and chrome steel components. Its P4 tolerance class makes it suitable for applications requiring minimal vibration and high accuracy.

For medical imaging devices, S71908 CB/P4A Bearing’s low friction and high-speed capabilities contribute to consistent performance. The 15° contact angle helps distribute loads evenly, extending the bearing’s service life in critical equipment.

Automotive vs Aerospace: Applications of S71908 CB/P4A Bearing
In automotive systems, S71908 CB/P4A Bearing is often found in gearboxes and electric motors, where its sealed design protects against contaminants. The high-speed rating makes it a dependable choice for performance vehicles.

Aerospace applications benefit from S71908 CB/P4A Bearing’s lightweight construction and precision tolerances. Its ability to handle angular loads makes it ideal for aircraft control systems and auxiliary equipment.

Built for Heavy-Duty Use: S71908 CB/P4A Bearing
S71908 CB/P4A Bearing excels in conveyor systems, where its dynamic radial load capacity ensures reliable operation under constant stress. The phenolic cage resists wear, even in high-temperature conditions.

For 3D printers, S71908 CB/P4A Bearing’s precision and smooth rotation contribute to accurate layering. Its compact size and high-speed compatibility make it a popular choice in additive manufacturing.

Q&A

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