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Super Precision Angular Contact Ball Bearings 71928 ACDGB/P4A

Super Precision Angular Contact Ball Bearings 71928 ACDGB/P4A

The 71928 ACDGB/P4A is a super precision angular contact ball bearing with a 140mm bore and 190mm outer diameter, crafted from durable chrome steel. Its 25° contact angle efficiently handles both radial and axial loads, making it versatile for high-precision applications.

This bearing supports dynamic radial loads up to 20340 lbf and spins smoothly at speeds up to 11000 RPM. The phenolic cage ensures quiet operation and longevity, while the open design allows for easy lubrication.

With a light preload (Class B), it offers excellent stability and reduced vibration. Its P4A tolerance class guarantees high precision, ideal for demanding machinery.

Weighing 1.65kg, it’s suitable for spindle assemblies or machine tools where accuracy is critical. It can be arranged back-to-back, face-to-face, or tandem for flexible mounting options. Compliant with standard temperature ranges from -30°C to 110°C.

Interchangeable with SKF bearings, it’s a reliable choice for replacements or upgrades. Perfect for CNC machines or high-speed industrial equipment.

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Product Parameters

  • Part Number 71928 ACDGB/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 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • 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 20340 lbf
  • Static Radial Load 24750 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 ACDGB/P4A dimension drawing
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Features

Performance Features of 71928 ACDGB/P4A Bearing

71928 ACDGB/P4A Bearing is crafted with chrome steel rings and balls, ensuring durability and precision.
Its 25° contact angle provides excellent angular contact performance, suitable for various load directions.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a dynamic radial load capacity of 20340 lbf, it handles demanding applications with ease.

71928 ACDGB/P4A Bearing operates efficiently at speeds up to 11,000 rpm, balancing speed and reliability.
Its P4A tolerance class ensures high precision, making it ideal for critical machinery.

The bearing’s temperature range of -30°C to 110°C allows for consistent performance in diverse environments.
Light preload class B ensures smooth operation while minimising wear over time.

Application

Industrial Uses of 71928 ACDGB/P4A Bearing
71928 ACDGB/P4A Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The open design and phenolic cage make it suitable for high-speed operations up to 11,000 rpm.

In automotive applications, 71928 ACDGB/P4A Bearing supports components like electric motors and gearboxes, offering reliable performance under angular contact loads. Its metric sizing and universal matching options provide flexibility for various vehicle designs.

For automation systems, 71928 ACDGB/P4A Bearing excels in robotic arms and CNC machinery, where its light preload and P4A tolerance class enhance precision. The chrome steel construction ensures durability in continuous operation.

Medical imaging devices benefit from 71928 ACDGB/P4A Bearing’s smooth operation and low friction, crucial for maintaining consistent performance in sensitive equipment. The temperature range of -30°C to 110°C adds to its versatility.

In aerospace applications, 71928 ACDGB/P4A Bearing’s high dynamic radial load capacity makes it ideal for flight control systems. The lubricated design reduces maintenance needs, even in demanding environments.

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