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Super Precision Angular Contact Ball Bearings 71920 ACD/HCP4ALDGA

Super Precision Angular Contact Ball Bearings 71920 ACD/HCP4ALDGA

The 71920 ACD/HCP4ALDGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel and ceramic balls. It handles radial loads up to 20768 lbf and operates smoothly at speeds up to 15000 RPM.

Its 25° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face, ideal for complex setups. The phenolic cage ensures durability while keeping weight low at 1.34kg.

This bearing excels in high-speed applications like machine tool spindles or precision instruments, thanks to its P4A tolerance class. It works reliably in temperatures from -30°C to 110°C.

Pre-lubricated for easy use, it comes in a matched set of two bearings for balanced performance. Interchangeable with SKF models for convenient replacements.

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Product Parameters

  • Part Number 71920 ACD/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 26
  • 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 20768 lbf
  • Static Radial Load 28125 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 1.34 kg
Super Precision Angular Contact Ball Bearings 71920 ACD/HCP4ALDGA dimension drawing
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Features

Performance Features of 71920 ACD/HCP4ALDGA Bearing

71920 ACD/HCP4ALDGA Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and ceramic balls ensure high precision and durability in demanding applications.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 20768 lbf, it excels in high-speed operations up to 15,000 rpm.

How Does 71920 ACD/HCP4ALDGA Bearing Achieve High Precision?

71920 ACD/HCP4ALDGA Bearing features a P4A tolerance class, ensuring exceptional accuracy for precision tasks.
The ceramic balls and chrome steel rings minimise friction, allowing smooth operation even at high speeds.
Its universal matching design allows flexible arrangement options like back-to-back or face-to-face.
The extra light preload (Class A) further enhances its precision performance.

Engineered for Efficiency: 71920 ACD/HCP4ALDGA Bearing

71920 ACD/HCP4ALDGA Bearing’s phenolic cage reduces weight and friction, improving overall efficiency.
The lubricated design ensures consistent performance, even under high-speed conditions up to 15,000 rpm.
With a static radial load capacity of 28125 lbf, it handles heavy loads reliably.
Its temperature range of -30°C to 110°C makes it suitable for various operating environments.

Application

Key Fields for 71920 ACD/HCP4ALDGA Bearing
71920 ACD/HCP4ALDGA Bearing is widely used in high-precision machine tools, where its 25° contact angle and ceramic balls ensure smooth operation under radial and axial loads. The universal matching design makes it versatile for various configurations.

In aerospace applications, 71920 ACD/HCP4ALDGA Bearing supports critical components like turbine shafts, thanks to its phenolic cage and P4A tolerance class. Its lightweight yet durable construction is ideal for high-speed environments.

For robotics, 71920 ACD/HCP4ALDGA Bearing excels in articulated arms and joints, where its extra-light preload reduces friction. The open seal type allows for easy lubrication, extending service life in continuous operation.

Medical imaging devices benefit from 71920 ACD/HCP4ALDGA Bearing’s precision and low noise, ensuring accurate scans. The chrome steel rings and ceramic balls provide reliable performance in sterile environments.

In automotive testing equipment, 71920 ACD/HCP4ALDGA Bearing handles high-speed rotations with minimal vibration. Its metric sizing and matched set options simplify integration into European and Asian machinery.

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