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Super Precision Angular Contact Ball Bearings 71930 CDGA/P4A

Super Precision Angular Contact Ball Bearings 71930 CDGA/P4A

The 71930 CDGA/P4A is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 25650 lbf and operates smoothly at speeds up to 11000 RPM.

With a 15° contact angle and open design, it offers excellent performance in high-speed applications. The phenolic cage ensures durability and reduces friction, making it ideal for precision machinery.

This bearing is part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements. It works well in temperatures from -30°C to 110°C and comes pre-lubricated for easy installation.

Weighing 2.5kg, it’s a robust choice for applications like machine tools or spindles where precision and reliability are key. Compliant with P4A tolerance standards for consistent performance.

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Product Parameters

  • Part Number 71930 CDGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 150 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 28 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 19.05 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 4
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 25650 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 2.5 kg
Super Precision Angular Contact Ball Bearings 71930 CDGA/P4A dimension drawing
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Features

Performance Features of 71930 CDGA/P4A Bearing

71930 CDGA/P4A Bearing is crafted with a 15° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 25650 lbf, 71930 CDGA/P4A Bearing performs reliably under high stress.
The extra light preload (Class A) enhances precision, making it suitable for high-speed applications up to 11,000 rpm.

71930 CDGA/P4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its open design allows for easy lubrication, ensuring consistent performance over time.

The P4A tolerance class guarantees exceptional accuracy in 71930 CDGA/P4A Bearing.
Its universal matching capability enables flexible arrangements like back-to-back or face-to-face configurations.

Application

Common Applications of 71930 CDGA/P4A Bearing
71930 CDGA/P4A Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The extra light preload makes it suitable for applications requiring minimal friction and smooth operation.

In robotics, 71930 CDGA/P4A Bearing supports articulated arms, providing stability and precision in repetitive movements. Its phenolic cage material helps reduce weight while maintaining durability.

For aerospace components, 71930 CDGA/P4A Bearing handles radial and axial loads in systems like landing gear mechanisms. The P4A tolerance class ensures consistent performance even under demanding conditions.

In medical imaging devices, 71930 CDGA/P4A Bearing’s chrome steel construction offers reliability for high-speed rotations. The open seal type allows for easy lubrication, extending service life in critical applications.

Q&A

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