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Super Precision Angular Contact Ball Bearings 71920 ACE/HCP4ALDGA

Super Precision Angular Contact Ball Bearings 71920 ACE/HCP4ALDGA

The 71920 ACE/HCP4ALDGA 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 13612 lbf and spins smoothly at speeds up to 15000 RPM.

Its 25° contact angle and ceramic balls reduce friction, while the phenolic cage ensures quiet operation. The bearing comes pre-lubricated and works in temperatures from -30°C to 110°C.

This model is part of a matched set of two, suitable for universal mounting in back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision applications like machine tool spindles or aerospace systems.

Weighing 1.3kg, it meets P4A tolerance standards for exceptional accuracy. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71920 ACE/HCP4ALDGA
  • 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 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 24
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • 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 13612 lbf
  • Static Radial Load 13500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 1.3 kg
Super Precision Angular Contact Ball Bearings 71920 ACE/HCP4ALDGA dimension drawing
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Features

Performance Features of 71920 ACE/HCP4ALDGA Bearing

71920 ACE/HCP4ALDGA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage ensures smooth operation, even at high speeds up to 15,000 rpm.
With a dynamic radial load capacity of 13,612 lbf, it handles demanding conditions reliably.

71920 ACE/HCP4ALDGA Bearing’s universal matching design allows flexible arrangement in back-to-back or face-to-face configurations.
The extra light preload (Class A) ensures precision performance in high-speed applications.

Its temperature range of -30°C to 110°C makes it suitable for various operating environments.
The P4A tolerance class guarantees consistent accuracy and reliability.

Application

Industrial Uses of 71920 ACE/HCP4ALDGA Bearing
71920 ACE/HCP4ALDGA Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load distribution. The ceramic balls and phenolic cage reduce friction, making it ideal for high-speed spindle applications.

Where Is 71920 ACE/HCP4ALDGA Bearing Used?
In automotive systems, 71920 ACE/HCP4ALDGA Bearing supports components like electric motors and gearboxes, thanks to its extra-light preload and universal matching design. The P4A tolerance class guarantees consistent performance under demanding conditions.

Optimized for Performance: 71920 ACE/HCP4ALDGA Bearing
For robotics and automation, 71920 ACE/HCP4ALDGA Bearing’s open design and ceramic balls provide smooth operation in robotic arms and 3D printers. Its high-speed capability and low heat generation make it a reliable choice for precision movements.

Medical vs Industrial: Where 71920 ACE/HCP4ALDGA Bearing Excels
In medical imaging devices, 71920 ACE/HCP4ALDGA Bearing’s chrome steel rings and ceramic balls ensure quiet, vibration-free operation. The same qualities make it suitable for industrial pumps and compressors, where reliability is key.

Practical Applications of 71920 ACE/HCP4ALDGA Bearing
71920 ACE/HCP4ALDGA Bearing is often found in aerospace applications, such as helicopter rotors, due to its high dynamic load capacity and temperature resistance. The matched set design simplifies installation in tandem or back-to-back configurations.

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