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Super Precision Angular Contact Ball Bearings 71920 ACDGB/P4A

Super Precision Angular Contact Ball Bearings 71920 ACDGB/P4A

The 71920 ACDGB/P4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 12870 lbf and operates smoothly at speeds up to 15000 RPM.

With a 25° contact angle and light preload, it offers excellent stability for high-precision applications. The open design and phenolic cage ensure reliable performance and easy maintenance.

This bearing is ideal for machine tools or spindle systems where accuracy is crucial. It works in temperatures from -30°C to 110°C and comes lubricated for immediate use.

Weighing 0.8kg, it’s robust yet manageable. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for versatile replacement options. Suitable for back-to-back, face-to-face, or tandem arrangements.

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Product Parameters

  • Part Number 71920 ACDGB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • Contact Angle 25°
  • 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 12870 lbf
  • Static Radial Load 14175 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.8 kg
Super Precision Angular Contact Ball Bearings 71920 ACDGB/P4A dimension drawing
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Features

Performance Features of 71920 ACDGB/P4A Bearing

71920 ACDGB/P4A Bearing is crafted with chrome steel rings and balls, offering high precision for angular contact applications.
Its 25° contact angle ensures efficient load distribution, enhancing performance in demanding setups.
The phenolic cage maintains ball alignment, reducing friction and wear.
With a dynamic radial load capacity of 12870 lbf, it handles heavy loads reliably.
The bearing operates smoothly at speeds up to 15,000 rpm, making it suitable for high-speed applications.
Its temperature range of -30°C to 110°C ensures versatility in various environments.
Light preload (Class B) further optimises its performance for precision tasks.

Application

Industrial Uses of 71920 ACDGB/P4A Bearing
71920 ACDGB/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and P4A tolerance class make it ideal for applications demanding minimal runout.

In automotive applications, 71920 ACDGB/P4A Bearing supports high-speed components like turbochargers and transmission systems. Its chrome steel construction provides durability under both radial and axial loads.

For robotics, 71920 ACDGB/P4A Bearing offers smooth operation in articulated arms and precision joints. The phenolic cage reduces friction, enhancing efficiency in repetitive movements.

Medical imaging devices benefit from 71920 ACDGB/P4A Bearing’s consistent performance and low noise levels. The open design allows for easy lubrication, ensuring long service life in critical equipment.

In aerospace systems, 71920 ACDGB/P4A Bearing handles high-speed rotations with reliability. Its universal matching capability simplifies installation in complex assemblies.

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