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Super Precision Angular Contact Ball Bearings S71928 CD/HCP4A

Super Precision Angular Contact Ball Bearings S71928 CD/HCP4A

The S71928 CD/HCP4A is a super precision angular contact ball bearing, measuring 140mm by 190mm by 24mm. Made from chrome steel with ceramic balls, it offers high durability and smooth operation.

It handles radial loads up to 21510 lbf and can spin at speeds up to 8000 RPM. The 15° contact angle and sealed design ensure reliable performance in demanding conditions.

Its phenolic cage reduces friction, while the P4 tolerance class guarantees precision. The bearing comes pre-lubricated and works in temperatures from -30°C to 110°C.

Ideal for high-precision applications like machine tools or spindles, it’s interchangeable with SKF bearings. Weighing 1.4kg, it’s robust yet manageable for its size.

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Product Parameters

  • Part Number S71928 CD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 190 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 29
  • 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 21510 lbf
  • Static Radial Load 26100 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 8000 rpm
  • Weight 1.4 kg
  • Price（$） 2221.164
Super Precision Angular Contact Ball Bearings S71928 CD/HCP4A dimension drawing
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Features

Performance Features of S71928 CD/HCP4A Bearing

S71928 CD/HCP4A Bearing features a 15° contact angle, optimised for angular contact loads and precision applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.
The phenolic cage ensures stability and alignment, even at high speeds up to 8,000 rpm.
With a dynamic radial load capacity of 21,510 lbf, it handles demanding tasks reliably.

Application

Key Fields for S71928 CD/HCP4A Bearing
S71928 CD/HCP4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for high-speed operations.

In aerospace applications, S71928 CD/HCP4A Bearing supports critical components like turbine shafts, thanks to its phenolic cage and sealed design. The P4 tolerance class guarantees the precision needed for such demanding environments.

For automation systems, S71928 CD/HCP4A Bearing excels in robotic arms, providing smooth movement under angular loads. Its lubricated construction ensures long service life even in continuous operation.

Medical imaging devices benefit from S71928 CD/HCP4A Bearing’s reliability, as its chrome steel rings and ceramic balls maintain performance in sensitive equipment. The sealed design also helps keep contaminants out.

In electric vehicle motors, S71928 CD/HCP4A Bearing handles high radial loads while maintaining efficiency. The matched arrangement option allows for custom setups to meet specific performance needs.

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