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Super Precision Angular Contact Ball Bearings 71912 CDGB/P4A

Super Precision Angular Contact Ball Bearings 71912 CDGB/P4A

The 71912 CDGB/P4A is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, crafted from durable chrome steel. It features a 15° contact angle and handles radial loads up to 4478 lbf, spinning smoothly at speeds up to 31000 RPM.

Its open design and phenolic cage ensure reliable performance, while the light preload (Class B) offers smooth operation. The bearing works well in temperatures from -30°C to 110°C and comes pre-lubricated for easy use.

This model is interchangeable with SKF bearings and can be arranged in back-to-back, face-to-face, or tandem configurations. Ideal for high-precision applications like machine tools or spindles where accuracy is key.

Weighing just 0.19kg, it’s lightweight yet robust for its size. The P4A tolerance class ensures top-tier precision for demanding tasks.

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Product Parameters

  • Part Number 71912 CDGB/P4A
  • 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 24
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4478 lbf
  • Static Radial Load 3442 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 31000 rpm
  • Weight 0.19 kg
  • Price（$） 122.148
Super Precision Angular Contact Ball Bearings 71912 CDGB/P4A dimension drawing
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Features

Performance Features of 71912 CDGB/P4A Bearing

71912 CDGB/P4A Bearing is designed for super precision applications with a 15° contact angle, ensuring accurate angular contact performance.

Its chrome steel rings and balls provide strong resistance to both dynamic and static radial loads, reaching up to 4478 lbf and 3442 lbf respectively.

The phenolic cage maintains ball alignment, reducing friction and enhancing durability.

With a maximum speed of 31,000 rpm, it delivers reliable performance in high-speed operations.

Application

Key Fields for 71912 CDGB/P4A Bearing
71912 CDGB/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and P4A tolerance class make it suitable for applications demanding minimal runout.

In robotics, 71912 CDGB/P4A Bearing supports articulated arms, providing smooth movement under combined radial and axial loads. Its phenolic cage reduces friction, enhancing efficiency in repetitive tasks.

For medical imaging devices, 71912 CDGB/P4A Bearing’s chrome steel construction offers reliability in high-speed rotations. The open seal design allows for easy lubrication, maintaining performance in critical healthcare environments.

Automotive testing equipment benefits from 71912 CDGB/P4A Bearing’s ability to handle dynamic radial loads. Its metric sizing ensures compatibility with European and Asian machinery standards.

In 3D printing, 71912 CDGB/P4A Bearing contributes to precise linear motion systems. The 15° contact angle balances speed and load capacity, making it ideal for detailed fabrication work.

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