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Super Precision Angular Contact Ball Bearings S71920 CD/HCP4A

Super Precision Angular Contact Ball Bearings S71920 CD/HCP4A

The S71920 CD/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 arrangement and preload options available.

This bearing handles radial loads up to 13612 lbf and reaches speeds of 11000 RPM, thanks to its ceramic balls and phenolic cage. It operates smoothly in temperatures from -30°C to 110°C, making it reliable in various conditions.

Its precision P4 (ABEC-7) tolerance ensures excellent performance in high-speed applications. The sealed design keeps lubrication in and contaminants out, reducing maintenance needs.

Ideal for machine tools, spindles, or other high-precision equipment where accuracy and speed are crucial. Weighing 0.68kg, it offers a robust yet lightweight solution for demanding applications.

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Product Parameters

  • Part Number S71920 CD/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 26
  • 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 13612 lbf
  • Static Radial Load 14738 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 11000 rpm
  • Weight 0.68 kg
  • Price（$） 1447.938
Super Precision Angular Contact Ball Bearings S71920 CD/HCP4A dimension drawing
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Features

Why Choose S71920 CD/HCP4A Bearing for Precision Tasks?

S71920 CD/HCP4A Bearing features a 15° contact angle, ideal for handling combined radial and axial loads with precision.
The ceramic balls and chrome steel rings ensure smooth operation, even at high speeds up to 11,000 rpm.

Its phenolic cage minimises friction, contributing to the bearing’s long service life.
With a dynamic radial load capacity of 13612 lbf, it performs reliably in demanding applications.

The sealed design protects against contaminants, making it suitable for various environments.
Preload availability further enhances its precision and stability in high-performance systems.

Application

Key Fields for S71920 CD/HCP4A Bearing
S71920 CD/HCP4A Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate alignment and smooth operation. The ceramic balls reduce friction, making it ideal for high-speed applications.

In aerospace components, S71920 CD/HCP4A Bearing provides reliable performance in systems like gyroscopes and flight control mechanisms. Its sealed design protects against contaminants, extending service life in demanding conditions.

For robotics, S71920 CD/HCP4A Bearing offers the precision needed for articulated arms and automated assembly lines. The phenolic cage adds durability while maintaining low weight, crucial for repetitive movements.

Medical imaging devices benefit from S71920 CD/HCP4A Bearing’s consistent rotation and low noise levels. The P4 tolerance class ensures minimal vibration, enhancing image clarity in diagnostic equipment.

In electric vehicle motors, S71920 CD/HCP4A Bearing handles combined radial and axial loads efficiently. Its lubricated design reduces maintenance needs, supporting long-term reliability in daily use.

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