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Super Precision Angular Contact Ball Bearings 71920 ACBGA/HCP4AL

Super Precision Angular Contact Ball Bearings 71920 ACBGA/HCP4AL

The 71920 ACBGA/HCP4AL is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 4568 lbf and spins at speeds up to 15000 RPM. Its phenolic cage ensures durability, while the extra light preload (Class A) offers precise performance.

The open design allows easy lubrication, and it works in temperatures from -30°C to 110°C. It’s part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements.

Ideal for high-precision applications like machine tools or spindles where accuracy is crucial. Weighing 0.8kg, it’s robust yet manageable for its size. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71920 ACBGA/HCP4AL
  • 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 7.938 mm
  • Ball Qty 37
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 4568 lbf
  • Static Radial Load 4770 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 ACBGA/HCP4AL dimension drawing
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Features

Performance Features of 71920 ACBGA/HCP4AL Bearing

71920 ACBGA/HCP4AL Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its ceramic balls and chrome steel rings reduce friction, enhancing speed capabilities up to 15,000 rpm.

The phenolic cage ensures smooth operation while maintaining stability under dynamic radial loads of 4568 lbf.
This bearing is ideal for high-speed machinery requiring reliable angular contact performance.

With a temperature range of -30°C to 110°C, 71920 ACBGA/HCP4AL Bearing adapts to various operating conditions.
Its extra-light preload (Class A) minimises vibration, ensuring consistent accuracy.

The open design allows for easy lubrication, extending maintenance intervals.
Universal matching options (back-to-back, face-to-face, or tandem) provide flexibility in complex assemblies.

Application

Industrial Uses of 71920 ACBGA/HCP4AL Bearing
71920 ACBGA/HCP4AL Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4A tolerance ensures precise alignment for demanding industrial applications.

Where Is 71920 ACBGA/HCP4AL Bearing Used?
In automotive systems, 71920 ACBGA/HCP4AL Bearing supports high-performance gearboxes and electric motors, thanks to its angular contact design. The extra-light preload helps maintain smooth operation under varying loads.

Built for Heavy-Duty Use: 71920 ACBGA/HCP4AL Bearing
For automation equipment like robotic arms, 71920 ACBGA/HCP4AL Bearing offers reliable performance with its chrome steel rings and ceramic balls. Its open design allows for easy lubrication, extending service life.

Medical vs Industrial: Where 71920 ACBGA/HCP4AL Bearing Excels
In medical imaging devices, 71920 ACBGA/HCP4AL Bearing provides quiet and precise movement due to its ceramic components. Industrial applications benefit from its high-speed capability and durability.

Practical Applications of 71920 ACBGA/HCP4AL Bearing
71920 ACBGA/HCP4AL Bearing is ideal for 3D printers, where its precision and low friction ensure accurate layer deposition. The metric sizing makes it compatible with a wide range of European machinery.

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