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Super Precision Angular Contact Ball Bearings 71928 CDGA/P4

Super Precision Angular Contact Ball Bearings 71928 CDGA/P4

The 71928 CDGA/P4 is a super precision angular contact ball bearing, measuring 280mm by 380mm by 24mm, crafted from durable chrome steel. It handles radial loads up to 21510 lbf and operates smoothly at speeds up to 7500 RPM.

With a 15° contact angle and open design, it offers excellent performance in high-precision applications. The phenolic cage ensures quiet operation and long service life.

This bearing comes in a matched set of three, suitable for universal mounting (back-to-back, face-to-face, or tandem). Ideal for machine tools or spindle systems where precision and reliability are key.

Weighing 1.65kg, it’s robust yet manageable for its size. Compliant with P4 tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71928 CDGA/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 280 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 380 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 29
  • Contact Angle 15°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Number Of Bearings In Matched Set 3
  • 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 21510 lbf
  • Static Radial Load 26100 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 7500 rpm
  • Weight 1.65 kg
Super Precision Angular Contact Ball Bearings 71928 CDGA/P4 dimension drawing
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Features

Performance Features of 71928 CDGA/P4 Bearing

71928 CDGA/P4 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 radial loads, with a dynamic capacity of 21510 lbf.

The phenolic cage ensures smooth operation, even at high speeds of up to 7,500 rpm.
With a P4 tolerance class, this bearing delivers precision performance in demanding conditions.

71928 CDGA/P4 Bearing is available in matched sets, offering flexibility for back-to-back or face-to-face arrangements.
Its extra-light preload reduces friction, enhancing efficiency and longevity.

Application

Key Fields for 71928 CDGA/P4 Bearing
71928 CDGA/P4 Bearing is widely used in high-precision machine tools, where its 15° contact angle ensures accurate radial and axial load handling. The phenolic cage reduces friction, making it suitable for high-speed operations.

In aerospace applications, 71928 CDGA/P4 Bearing supports critical components like turbine shafts, thanks to its P4 tolerance class and matched arrangement. The chrome steel construction provides durability under extreme conditions.

For robotics, 71928 CDGA/P4 Bearing’s extra light preload enhances precision in robotic arms and automated systems. Its universal matching capability allows for flexible configurations in various setups.

Medical imaging devices benefit from 71928 CDGA/P4 Bearing’s consistent performance and low maintenance requirements. The lubricated design ensures smooth operation in sensitive environments.

Q&A

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