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Super Precision Angular Contact Ball Bearings 71912 CD/P4ADBA

Super Precision Angular Contact Ball Bearings 71912 CD/P4ADBA

The 71912 CD/P4ADBA is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, crafted from durable chrome steel. It handles both radial and angular loads, with a dynamic radial load capacity of 7178 lbf.

Its 15° contact angle and extra light preload ensure smooth, high-speed operation up to 36,000 RPM. The phenolic cage offers excellent stability and reduces friction during use.

This matched set of two bearings (DB arrangement) is ideal for applications requiring high precision, such as machine tools or spindles. The open design allows for easy lubrication and maintenance.

Weighing 0.38kg, it operates efficiently in temperatures from -30°C to 110°C. Compliant with P4A tolerance standards, it’s a reliable choice for demanding industrial environments.

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Product Parameters

  • Part Number 71912 CD/P4ADBA
  • 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 24
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 7178 lbf
  • Static Radial Load 6975 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 36000 rpm
  • Weight 0.38 kg
Super Precision Angular Contact Ball Bearings 71912 CD/P4ADBA dimension drawing
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Features

How Is 71912 CD/P4ADBA Bearing Engineered for Reliability?

71912 CD/P4ADBA Bearing features a 15° contact angle, optimised for precision angular contact applications.
The chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 7178 lbf, it handles demanding conditions with ease.
Its extra-light preload (Class A) enhances performance, making it suitable for high-speed operations up to 36,000 rpm.

The matched arrangement of two bearings (DB) provides stability and balanced load distribution.
Its tight tolerances (P4A) ensure consistent performance in precision machinery.

Application

Common Applications of 71912 CD/P4ADBA Bearing
71912 CD/P4ADBA Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability, making it ideal for grinding and milling operations.

In automotive applications, 71912 CD/P4ADBA Bearing supports high-speed components like turbochargers and transmission systems. Its extra light preload reduces friction, enhancing efficiency and longevity in demanding conditions.

For medical imaging devices, 71912 CD/P4ADBA Bearing’s phenolic cage and chrome steel construction offer reliable performance. The P4A tolerance class ensures minimal vibration, crucial for maintaining image clarity in sensitive equipment.

Automation systems benefit from 71912 CD/P4ADBA Bearing’s ability to handle combined loads in robotic arms. The open design allows for easy lubrication, ensuring smooth movement in repetitive tasks.

In consumer electronics, 71912 CD/P4ADBA Bearing is found in high-speed printers and precision instruments. Its low-temperature operation range makes it suitable for environments where heat buildup is a concern.

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