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Super Precision Angular Contact Ball Bearings 71928 CD/P4ADFC

Super Precision Angular Contact Ball Bearings 71928 CD/P4ADFC

The 71928 CD/P4ADFC is a super precision angular contact ball bearing, measuring 140mm by 190mm by 48mm, crafted from durable chrome steel. It features a 15° contact angle and comes in a matched set of two bearings arranged face-to-face.

This bearing handles radial loads up to 34425 lbf and operates smoothly at speeds up to 11000 RPM. Its phenolic cage ensures quiet performance and long service life.

The open design allows for easy lubrication, while the P4A tolerance class guarantees high precision. Ideal for machine tools or high-speed spindles where accuracy is crucial.

Weighing 3.3kg, it’s robust yet manageable for its size. Suitable for temperatures ranging from -30°C to 110°C, making it versatile for various industrial applications.

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Product Parameters

  • Part Number 71928 CD/P4ADFC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 190 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 48 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 29
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings >< DF
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 34425 lbf
  • Static Radial Load 52200 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 3.3 kg
  • Price（$） 892.818
Super Precision Angular Contact Ball Bearings 71928 CD/P4ADFC dimension drawing
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Features

Performance Features of 71928 CD/P4ADFC Bearing

71928 CD/P4ADFC Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under high dynamic radial loads of 34425 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 11,000 rpm, it delivers smooth operation in precision tasks.

71928 CD/P4ADFC Bearing operates efficiently in temperatures from -30°C to 110°C.
Its matched arrangement of two bearings ensures stability and reliability in demanding conditions.

The moderate preload (Class C) minimises vibration, making it suitable for high-precision applications.
Its open design allows for easy lubrication, extending service life.

Application

Industrial Uses of 71928 CD/P4ADFC Bearing
71928 CD/P4ADFC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload helps maintain stability during heavy cutting operations.

In robotics, 71928 CD/P4ADFC Bearing supports articulated arms, providing smooth movement and precise positioning. Its phenolic cage reduces friction, making it ideal for repetitive tasks.

For aerospace applications, 71928 CD/P4ADFC Bearing handles radial and axial loads in aircraft components. The P4A tolerance class ensures consistent performance under demanding conditions.

Where Is 71928 CD/P4ADFC Bearing Used?
You’ll find 71928 CD/P4ADFC Bearing in CNC machines, where its 15° contact angle improves load distribution. The chrome steel construction also extends its lifespan in industrial settings.

In medical imaging devices, 71928 CD/P4ADFC Bearing offers quiet operation and reliability. Its open design allows for easy lubrication, ensuring minimal maintenance downtime.

Built for Heavy-Duty Use: 71928 CD/P4ADFC Bearing
71928 CD/P4ADFC Bearing excels in gearboxes, handling both radial and thrust loads with ease. The matched DF arrangement enhances its load-carrying capacity.

For automation systems, 71928 CD/P4ADFC Bearing ensures precise motion control in conveyor belts. Its high-speed capability makes it suitable for fast-paced production lines.

Automotive vs Aerospace: Applications of 71928 CD/P4ADFC Bearing
In automotive transmissions, 71928 CD/P4ADFC Bearing supports smooth gear shifts under high loads. Its metric sizing ensures compatibility with European and Asian models.

For aerospace actuators, 71928 CD/P4ADFC Bearing provides reliable performance in extreme temperatures. The phenolic cage reduces weight without compromising strength.

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