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Super Precision Angular Contact Ball Bearings S71908 CD/HCP4A

Super Precision Angular Contact Ball Bearings S71908 CD/HCP4A

The S71908 CD/HCP4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 2790 lbf and spins smoothly at speeds up to 26,000 RPM.

Its sealed design keeps lubrication in and contaminants out, while the phenolic cage ensures quiet operation. The 15° contact angle provides excellent stability for angular loads.

This bearing is available with preload and matched arrangements, making it versatile for high-precision applications. Ideal for use in machine tools, spindles, or other equipment requiring tight tolerances.

Weighing just 0.1kg, it’s lightweight yet robust. Compliant with P4 (ABEC-7) tolerance standards for reliable performance in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number S71908 CD/HCP4A
  • 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 6.35 mm
  • Ball Qty 21
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2790 lbf
  • Static Radial Load 1912 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 26000 rpm
  • Weight 0.1 kg
  • Price（$） 346.113
Super Precision Angular Contact Ball Bearings S71908 CD/HCP4A dimension drawing
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Features

Why Choose S71908 CD/HCP4A Bearing for Precision Tasks?

S71908 CD/HCP4A Bearing features a 15° contact angle, ideal for handling combined radial and axial loads with high precision.
Its ceramic balls and chrome steel rings ensure smooth operation, even at high speeds up to 26,000 rpm.

The phenolic cage minimises friction and wear, enhancing the bearing’s longevity.
With a P4 tolerance class, it delivers consistent performance in demanding applications.

Application

Essential Roles of S71908 CD/HCP4A Bearing
S71908 CD/HCP4A Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it ideal for applications demanding smooth operation.

In robotics, S71908 CD/HCP4A Bearing supports articulated arms, providing stability and precision in repetitive movements. Its sealed design helps keep contaminants out, extending service life in dusty environments.

For medical imaging devices, S71908 CD/HCP4A Bearing’s phenolic cage offers quiet performance, crucial for sensitive equipment. The P4 tolerance class ensures consistent accuracy in diagnostic machinery.

Automotive applications like electric vehicle motors benefit from S71908 CD/HCP4A Bearing’s high-speed capability and low heat generation. Its lubricated design reduces maintenance needs in demanding conditions.

In aerospace systems, S71908 CD/HCP4A Bearing handles both radial and axial loads efficiently, thanks to its 15° contact angle. The lightweight construction is a plus for fuel-sensitive applications.

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