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Super Precision Angular Contact Ball Bearings 71912 ACEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71912 ACEGA/HCP4A

The 71912 ACEGA/HCP4A is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 3442 lbf.

This open-design bearing spins at speeds up to 36,000 RPM, making it suitable for high-performance applications. The phenolic cage adds durability while keeping the weight light at just 0.16kg.

With an extra light preload (Class A) and P4A tolerance, it offers precise movement for demanding setups. It works in temperatures from -30°C to 110°C and comes pre-lubricated for easy use.

Ideal for machine tools or spindle drives, this bearing can be paired back-to-back, face-to-face, or tandem. It’s interchangeable with SKF models, simplifying replacements.

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Product Parameters

  • Part Number 71912 ACEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 23
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • 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°C to 110 °C
  • Max Speed 36000 rpm
  • Weight 0.16 kg
  • Price（$） 29.844
Super Precision Angular Contact Ball Bearings 71912 ACEGA/HCP4A dimension drawing
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Features

Performance Features of 71912 ACEGA/HCP4A Bearing

71912 ACEGA/HCP4A Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.

Its chrome steel rings and ceramic balls ensure smooth operation, even at high speeds up to 36,000 rpm.

The phenolic cage provides excellent heat resistance, making it suitable for demanding applications.

With a dynamic radial load capacity of 3442 lbf, it offers reliable performance in precision tasks.

Application

Super Precision Angular Contact Ball Bearings 71912 ACEGA/HCP4A are widely used in high-speed machine tools, where their ceramic balls and phenolic cage reduce friction for smoother operation. The extra light preload ensures minimal vibration during precision machining tasks.
In robotics, 71912 ACEGA/HCP4A excels in articulated arms, providing the angular contact needed for fluid movement. Its P4A tolerance class guarantees consistent performance in repetitive motion applications.
For aerospace components, 71912 ACEGA/HCP4A handles radial and axial loads in navigation systems, thanks to its chrome steel rings. The lubricated design extends service life even under continuous use.
Medical imaging devices benefit from 71912 ACEGA/HCP4A’s quiet running and low heat generation, critical for sensitive diagnostic equipment. The open seal allows for easy cleaning in sterile environments.
Automotive testing rigs often incorporate 71912 ACEGA/HCP4A for its ability to maintain accuracy under varying loads. Its universal matching capability simplifies installation in complex setups.

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