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Super Precision Angular Contact Ball Bearings S71903 ACD/HCP4A

Super Precision Angular Contact Ball Bearings S71903 ACD/HCP4A

The S71903 ACD/HCP4A is a super precision angular contact ball bearing with a 17mm bore and 30mm outer diameter, measuring just 7mm wide. Made from chrome steel and ceramic balls, it offers smooth operation and durability.

It handles radial loads up to 893 lbf and spins at speeds up to 56,000 RPM, ideal for high-performance applications. The sealed design keeps lubrication in and contaminants out, ensuring long service life.

With a 25° contact angle and P4 tolerance class, it provides excellent precision and stability. The phenolic cage adds strength while reducing weight, making it just 0.015kg.

Perfect for precision machinery like spindles or dental tools where accuracy and speed are key. It’s interchangeable with SKF bearings for easy replacement. Works in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number S71903 ACD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 17 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 30 mm
  • Outer Dia Tolerance -0.005mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 14
  • Contact Angle 25°
  • 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 893 lbf
  • Static Radial Load 450 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.015 kg
  • Price（$） 158.832
Super Precision Angular Contact Ball Bearings S71903 ACD/HCP4A dimension drawing
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Features

Engineered for Precision: S71903 ACD/HCP4A Bearing

S71903 ACD/HCP4A Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its ceramic balls and chrome steel rings ensure smooth operation with minimal friction.

The phenolic cage maintains ball alignment, enhancing durability and reducing wear.
With a maximum speed of 56,000 rpm, it delivers reliable performance in demanding conditions.

S71903 ACD/HCP4A Bearing is preloaded and available in matched sets for consistent accuracy.
Its sealed design keeps lubrication intact, extending maintenance intervals.

Application

Essential Roles of S71903 ACD/HCP4A Bearing
S71903 ACD/HCP4A Bearing is commonly used in high-speed machine spindles, where its precision and angular contact design ensure smooth rotation. The ceramic balls reduce friction, making it ideal for applications demanding accuracy.

In robotics, S71903 ACD/HCP4A Bearing supports articulated arms, providing stability and responsiveness. Its sealed design keeps contaminants out, extending service life in demanding environments.

For medical imaging devices, S71903 ACD/HCP4A Bearing’s phenolic cage and P4 tolerance deliver quiet, vibration-free operation. This makes it suitable for sensitive equipment where minimal interference is critical.

Automotive applications like electric vehicle motors benefit from S71903 ACD/HCP4A Bearing’s high-speed capability and lubricated design. It handles radial and axial loads efficiently, ensuring reliable performance.

In aerospace systems, S71903 ACD/HCP4A Bearing’s lightweight construction and temperature resistance make it a dependable choice. Its matched arrangement option further enhances precision in critical assemblies.

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