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Super Precision Angular Contact Ball Bearings 71938 CD/P4ADGA

Super Precision Angular Contact Ball Bearings 71938 CD/P4ADGA

The 71938 CD/P4ADGA is a super precision angular contact ball bearing with a 190mm bore and 260mm outer diameter, crafted from high-quality chrome steel. Its 15° contact angle and extra light preload ensure smooth operation under radial loads up to 62100 lbf.

With a phenolic cage and open design, it offers excellent durability and easy lubrication. It can handle speeds up to 16250 RPM and operates in temperatures from -30°C to 110°C, making it versatile for various conditions.

This bearing comes in a matched set of two, allowing flexible arrangements like back-to-back or face-to-face. Ideal for high-precision applications such as machine tools or spindles where accuracy and reliability are key.

Weighing 8.7kg, it’s a robust choice for demanding environments. Compliant with P4A tolerance class, it ensures top-tier performance for critical machinery.

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Product Parameters

  • Part Number 71938 CD/P4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 190 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 260 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 66 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 22.225 mm
  • Ball Qty 28
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 62100 lbf
  • Static Radial Load 99000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 8.7 kg
Super Precision Angular Contact Ball Bearings 71938 CD/P4ADGA dimension drawing
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Features

Performance Features of 71938 CD/P4ADGA Bearing

71938 CD/P4ADGA 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 wear.

With a dynamic radial load capacity of 62,100 lbf, it handles demanding conditions with ease.

The bearing’s universal matching capability allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

How Is 71938 CD/P4ADGA Bearing Engineered for Reliability?

71938 CD/P4ADGA Bearing features precision-ground chrome steel components for consistent performance.

The extra light preload (Class A) ensures smooth operation, reducing vibration and noise.

Its high-speed capability of 16,250 rpm makes it suitable for applications requiring rapid rotation.

The open design allows easy lubrication, maintaining optimal performance over time.

Designed for Durability: 71938 CD/P4ADGA Bearing

71938 CD/P4ADGA Bearing’s robust construction withstands static radial loads up to 99,000 lbf.

The phenolic cage material resists wear, even under high-speed conditions.

With a temperature range of -30°C to 110°C, it performs reliably in varied environments.

Its matched set of two bearings ensures balanced load distribution in complex setups.

Application

Industrial Uses of 71938 CD/P4ADGA Bearing
71938 CD/P4ADGA Bearing is commonly used in high-precision machine tools, where its 15° contact angle ensures accurate radial and axial load handling. The open design and phenolic cage make it suitable for high-speed operations in industrial settings.

Where Is 71938 CD/P4ADGA Bearing Used?
You’ll often find 71938 CD/P4ADGA Bearing in automotive applications like high-performance gearboxes, where its universal matching feature simplifies installation. Its extra-light preload also helps reduce friction in demanding conditions.

Built for Heavy-Duty Use: 71938 CD/P4ADGA Bearing
71938 CD/P4ADGA Bearing excels in robotics and automation, particularly in robotic arms requiring smooth, precise movement. The chrome steel construction ensures durability even in continuous operation.

Medical vs Industrial: Where 71938 CD/P4ADGA Bearing Excels
In medical imaging devices, 71938 CD/P4ADGA Bearing provides reliable performance due to its P4A tolerance class. For industrial uses, its high dynamic radial load capacity makes it ideal for heavy machinery.

Practical Applications of 71938 CD/P4ADGA Bearing
71938 CD/P4ADGA Bearing works well in 3D printers, where its low friction and high-speed capability improve print accuracy. The tandem arrangement option also allows for custom setups in specialised equipment.

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