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Super Precision Angular Contact Ball Bearings S71912 ACE/HCP4ADBA

Super Precision Angular Contact Ball Bearings S71912 ACE/HCP4ADBA

The S71912 ACE/HCP4ADBA is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 5648 lbf and spins smoothly at speeds up to 32,500 RPM.

Its sealed design keeps grease in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The 25° contact angle and extra-light preload make it ideal for high-precision applications.

This matched set of two bearings (arranged back-to-back) offers excellent stability under angular loads. Suitable for machine tools, spindles, or other high-speed equipment where precision is key.

Weighing just 0.32kg, it operates reliably in temperatures from -30°C to 110°C. The P4A tolerance class ensures consistent performance in demanding conditions.

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Product Parameters

  • Part Number S71912 ACE/HCP4ADBA
  • 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 26 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 Sealed
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 5648 lbf
  • Static Radial Load 4950 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 32500 rpm
  • Weight 0.32 kg
Super Precision Angular Contact Ball Bearings S71912 ACE/HCP4ADBA dimension drawing
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Features

How Is S71912 ACE/HCP4ADBA Bearing Engineered for Reliability?

S71912 ACE/HCP4ADBA Bearing features a 25° contact angle, optimised for angular contact loads and high-speed applications.
The ceramic balls and chrome steel rings enhance durability, while the phenolic cage ensures smooth operation.
With a dynamic radial load capacity of 5648 lbf, it handles demanding conditions with ease.
Its sealed design and grease lubrication reduce maintenance needs, extending service life.

Application

Key Fields for S71912 ACE/HCP4ADBA Bearing
S71912 ACE/HCP4ADBA Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The sealed design keeps contaminants out, ensuring long-lasting performance in demanding industrial settings.

In automotive applications, S71912 ACE/HCP4ADBA Bearing excels in electric motor systems, thanks to its angular contact design handling both radial and axial loads. The extra light preload ensures smooth operation, even at high RPMs.

For medical imaging devices like MRI machines, S71912 ACE/HCP4ADBA Bearing’s precision P4A tolerance guarantees minimal vibration and noise. The grease lubrication and wide temperature range make it reliable for continuous use in sensitive environments.

Automation systems benefit from S71912 ACE/HCP4ADBA Bearing’s matched arrangement, providing stability in robotic arms and CNC equipment. The chrome steel rings and ceramic balls offer a good balance of strength and low maintenance.

In consumer electronics, S71912 ACE/HCP4ADBA Bearing can be found in high-end turntables and optical drives, where its smooth rotation enhances performance. The compact metric sizing fits well in space-constrained designs.

Q&A

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