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Super Precision Angular Contact Ball Bearings S71920 CE/HCP4A

Super Precision Angular Contact Ball Bearings S71920 CE/HCP4A

The S71920 CE/HCP4A is a super precision angular contact ball bearing with a 100mm bore and 140mm 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 8775 lbf and reaches speeds of 15500 RPM, thanks to its ceramic balls and phenolic cage. The sealed design keeps lubrication in place, ensuring smooth operation.

Ideal for high-precision applications like machine tool spindles or robotics, it operates in temperatures from -30°C to 110°C. Its P4 tolerance class (ABEC-7) guarantees exceptional accuracy.

Weighing 0.66kg, it’s a robust yet lightweight choice for demanding environments. Compatible with SKF bearings, it offers reliable performance for industrial and precision engineering needs.

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Product Parameters

  • Part Number S71920 CE/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 24
  • 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 8775 lbf
  • Static Radial Load 7088 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 15500 rpm
  • Weight 0.66 kg
  • Price（$） 1447.893
Super Precision Angular Contact Ball Bearings S71920 CE/HCP4A dimension drawing
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Features

Performance Features of S71920 CE/HCP4A Bearing

S71920 CE/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls reduce friction, enhancing precision and speed capabilities.

The phenolic cage ensures smooth operation, even at high speeds up to 15,500 rpm.
With a dynamic radial load capacity of 8775 lbf, it handles demanding conditions reliably.

Sealed and preloaded options are available, offering flexibility for various precision requirements.
The P4 tolerance class guarantees consistent performance in high-accuracy applications.

Application

Super Precision Angular Contact Ball Bearings S71920 CE/HCP4A is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4 tolerance ensures exceptional accuracy for precision machining operations.

In robotics, S71920 CE/HCP4A provides reliable angular contact support for articulated arms, thanks to its matched arrangement and preload options. The sealed design also protects against contaminants in dynamic environments.

For aerospace applications, S71920 CE/HCP4A handles radial and axial loads in components like landing gear systems. Its temperature stability and high-speed capability make it suitable for demanding flight conditions.

In medical imaging devices, S71920 CE/HCP4A’s low vibration and smooth rotation enhance scan quality. The chrome steel rings and ceramic balls offer long-lasting performance with minimal maintenance.

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