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Super Precision Angular Contact Ball Bearings 71930 CD/P4ADGB

Super Precision Angular Contact Ball Bearings 71930 CD/P4ADGB

The 71930 CD/P4ADGB is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 41850 lbf and operates smoothly at speeds up to 11000 RPM.

Its 15° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face setups. The phenolic cage ensures quiet, long-lasting performance, even in demanding conditions.

This bearing is preloaded for light use and works well in temperatures from -30°C to 110°C. Ideal for high-precision applications like machine tool spindles or industrial gearboxes.

Weighing 5kg, it comes as a matched set of two bearings for balanced performance. Compliant with P4A tolerance standards for exceptional accuracy.

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Product Parameters

  • Part Number 71930 CD/P4ADGB
  • 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 56 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 Universal matching
  • Number Of Bearings In Matched Set 2
  • 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 41850 lbf
  • Static Radial Load 58500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 5 kg
Super Precision Angular Contact Ball Bearings 71930 CD/P4ADGB dimension drawing
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Features

Performance Features of 71930 CD/P4ADGB Bearing

71930 CD/P4ADGB Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 41,850 lbf, 71930 CD/P4ADGB Bearing handles demanding conditions reliably.
The P4A tolerance class guarantees high precision, making it suitable for critical applications.

71930 CD/P4ADGB Bearing operates smoothly at speeds up to 11,000 rpm, balancing performance and longevity.
Its universal matching design allows flexible arrangements, including back-to-back and face-to-face configurations.

Application

Industrial Uses of 71930 CD/P4ADGB Bearing
This bearing is commonly used in high-precision machine tools, where its 15° contact angle ensures accurate radial and axial load distribution. The universal matching design allows flexible arrangement in back-to-back or face-to-face configurations.

Where Is 71930 CD/P4ADGB Bearing Used?
You’ll find it in aerospace applications, such as helicopter gearboxes, thanks to its light preload and P4A tolerance class. The phenolic cage reduces friction, making it ideal for high-speed rotations up to 11,000 rpm.

Built for Heavy-Duty Use: 71930 CD/P4ADGB Bearing
In industrial robotics, this bearing handles repetitive motions with minimal wear due to its chrome steel construction. Its matched set design simplifies installation in complex machinery.

Automotive vs Aerospace: Applications of 71930 CD/P4ADGB Bearing
While it supports turbocharger shafts in performance cars, the same bearing excels in aircraft landing gear systems. The open seal type allows for efficient lubrication in both environments.

Perfect Fit for Automation: 71930 CD/P4ADGB Bearing
It’s a go-to choice for CNC spindle drives, where its 19.05 mm balls ensure smooth operation. The 5 kg weight strikes a balance between durability and manageable size for most setups.

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