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Super Precision Angular Contact Ball Bearings 71928 CD/P4ADBB

Super Precision Angular Contact Ball Bearings 71928 CD/P4ADBB

The 71928 CD/P4ADBB is a super precision angular contact ball bearing, measuring 140mm by 190mm by 48mm. Made from chrome steel, it features a 15° contact angle and comes in a matched pair for balanced performance.

It handles radial loads up to 34425 lbf and spins smoothly at speeds up to 11000 RPM. The phenolic cage ensures durability, while the open design allows for easy lubrication.

The light preload (Class B) ensures stable operation, ideal for high-precision applications. Its P4A tolerance class guarantees consistent performance in demanding conditions.

Suitable for machine tools or spindle systems, this bearing operates in temperatures from -30°C to 110°C. Weighing 3.3kg, it’s robust yet manageable for its size. Interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 71928 CD/P4ADBB
  • 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 <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Light / Class B
  • 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
Super Precision Angular Contact Ball Bearings 71928 CD/P4ADBB dimension drawing
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Features

Performance Features of 71928 CD/P4ADBB Bearing

71928 CD/P4ADBB Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls provide strong resistance to wear, ensuring reliable performance.

The phenolic cage maintains ball alignment, reducing friction and extending service life.
With a dynamic radial load capacity of 34425 lbf, it handles demanding conditions with ease.

71928 CD/P4ADBB Bearing operates smoothly at speeds up to 11,000 rpm, balancing precision and durability.
Its light preload design ensures consistent performance in high-speed applications.

The matched arrangement of two bearings enhances stability, making it suitable for precision tasks.
Its temperature range of -30°C to 110°C ensures versatility in various environments.

Application

Industrial Uses of 71928 CD/P4ADBB Bearing
71928 CD/P4ADBB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability, making it ideal for heavy cutting operations.

In automotive applications, 71928 CD/P4ADBB Bearing supports high-speed components like turbochargers and gearboxes. Its light preload and phenolic cage reduce friction, enhancing efficiency in demanding conditions.

For medical imaging devices, 71928 CD/P4ADBB Bearing’s chrome steel construction offers reliable performance under consistent radial loads. The P4A tolerance class ensures minimal vibration, crucial for clear diagnostic results.

Automation systems benefit from 71928 CD/P4ADBB Bearing’s ability to handle combined loads in robotic arms. The open design allows for easy lubrication, extending service life in continuous operation.

In aerospace applications, 71928 CD/P4ADBB Bearing’s high-speed capability and temperature resistance make it suitable for flight control systems. The metric dimensions ensure compatibility with international aircraft standards.

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