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Super Precision Angular Contact Ball Bearings S71912 ACE/HCP4A

Super Precision Angular Contact Ball Bearings S71912 ACE/HCP4A

The S71912 ACE/HCP4A is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, measuring just 13mm wide. Made from chrome steel and ceramic balls, it offers smooth operation and durability.

With a 25° contact angle, it handles both radial and thrust loads efficiently, supporting up to 3442 lbf dynamically. It spins at speeds up to 23,000 RPM, making it suitable for high-performance applications.

The sealed design keeps lubrication in and contaminants out, while the phenolic cage ensures quiet running. Its P4 tolerance class guarantees precision for demanding tasks.

Ideal for machine tools or high-speed spindles, this bearing operates in temperatures from -30°C to 110°C. Weighing only 0.16kg, it’s lightweight yet robust for its size.

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Product Parameters

  • Part Number S71912 ACE/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.007mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 23
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 3442 lbf
  • Static Radial Load 2475 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 23000 rpm
  • Weight 0.16 kg
  • Price（$） 62.55
Super Precision Angular Contact Ball Bearings S71912 ACE/HCP4A dimension drawing
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Features

Performance Features of S71912 ACE/HCP4A Bearing

S71912 ACE/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction.

With a dynamic radial load capacity of 3442 lbf, it handles demanding conditions reliably.
Its P4 tolerance class ensures high precision, making it suitable for critical applications.

The sealed design and lubrication extend maintenance intervals, reducing downtime.
S71912 ACE/HCP4A Bearing operates smoothly at speeds up to 23,000 rpm.

The phenolic cage maintains ball alignment, ensuring consistent performance.
Its compact size (60 mm×85 mm×13 mm) makes it ideal for space-constrained installations.

Application

Essential Roles of S71912 ACE/HCP4A Bearing
S71912 ACE/HCP4A Bearing is widely used in high-speed machine spindles, where its ceramic balls and phenolic cage reduce friction and heat buildup. The 25° contact angle ensures stable performance under combined radial and axial loads.

In robotics, S71912 ACE/HCP4A Bearing provides precise motion control for articulated arms, thanks to its P4 tolerance class. The sealed design also keeps contaminants out, extending service life in demanding environments.

For dental drills and surgical tools, S71912 ACE/HCP4A Bearing’s lubricated construction allows smooth operation at up to 23,000 rpm. Its chrome steel rings offer durability while maintaining the quietness needed in medical settings.

Automotive electric motors benefit from S71912 ACE/HCP4A Bearing’s preload capability, which minimises vibration in alternators and turbochargers. The metric sizing ensures easy integration with European and Asian vehicle designs.

In 3D printers, S71912 ACE/HCP4A Bearing’s low-weight phenolic cage helps maintain accuracy during rapid directional changes. The ceramic balls further reduce wear, making it ideal for continuous printing jobs.

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