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Super Precision Angular Contact Ball Bearings 71928 CDGB/P4A

Super Precision Angular Contact Ball Bearings 71928 CDGB/P4A

The 71928 CDGB/P4A is a super precision angular contact ball bearing with a 140mm bore and 190mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 21510 lbf and operates smoothly at speeds up to 11000 RPM.

With a 15° contact angle and light preload, it offers excellent stability for precision applications. The open design and phenolic cage ensure durability and easy maintenance.

This bearing is suitable for temperatures ranging from -30°C to 110°C and comes lubricated for immediate use. Its P4A tolerance class guarantees high accuracy.

Ideal for machine tools or spindle applications where precision is key. Weighing 1.65kg, it’s robust yet manageable for its size. Compatible with SKF bearings for easy replacement.

It can be arranged back-to-back, face-to-face, or tandem, offering flexibility in installation. Perfect for high-speed, high-precision machinery.

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Product Parameters

  • Part Number 71928 CDGB/P4A
  • 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 24 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 No
  • 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 21510 lbf
  • Static Radial Load 26100 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 1.65 kg
Super Precision Angular Contact Ball Bearings 71928 CDGB/P4A dimension drawing
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Features

Performance Features of 71928 CDGB/P4A Bearing

71928 CDGB/P4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure high durability and resistance to wear.

The phenolic cage in 71928 CDGB/P4A Bearing maintains ball alignment, reducing friction and noise.
With a dynamic radial load capacity of 21510 lbf, it handles demanding conditions with ease.

71928 CDGB/P4A Bearing operates smoothly at speeds up to 11,000 rpm, balancing performance and longevity.
Its P4A tolerance class guarantees precision, making it ideal for high-accuracy machinery.

The open design of 71928 CDGB/P4A Bearing allows for easy lubrication, ensuring consistent performance.
It functions reliably within a temperature range of -30°C to 110°C, adapting to various environments.

Application

Key Fields for 71928 CDGB/P4A Bearing
71928 CDGB/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload helps maintain stability during high-speed operations.

In aerospace applications, 71928 CDGB/P4A Bearing supports components like helicopter transmissions, thanks to its durable chrome steel construction. The P4A tolerance class guarantees consistent performance under demanding conditions.

For automation systems, 71928 CDGB/P4A Bearing fits well in robotic arms, providing smooth movement with minimal friction. Its phenolic cage offers good heat resistance, making it suitable for prolonged use.

Medical imaging devices benefit from 71928 CDGB/P4A Bearing’s precision, ensuring reliable operation in MRI machines. The open design allows for easy lubrication, extending service life.

In electric motors, 71928 CDGB/P4A Bearing handles radial and axial loads efficiently, contributing to quieter operation. The metric sizing makes it compatible with various European motor designs.

Q&A

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