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Super Precision Angular Contact Ball Bearings 71920 ACDGC/P4A

Super Precision Angular Contact Ball Bearings 71920 ACDGC/P4A

The 71920 ACDGC/P4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and moderate preload for balanced performance.

This bearing handles radial loads up to 12870 lbf and spins smoothly at speeds up to 15000 RPM. Its phenolic cage ensures quiet operation and long service life, even in demanding conditions.

The open design allows easy lubrication, while the P4A tolerance class guarantees high precision. It works well in temperatures from -30°C to 110°C.

Ideal for high-speed applications like machine tool spindles or precision equipment. Weighing 0.8kg, it’s robust yet manageable for its size. Compatible with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 71920 ACDGC/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 Moderate / Class C
  • 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 ACDGC/P4A dimension drawing
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Features

Performance Features of 71920 ACDGC/P4A Bearing

71920 ACDGC/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under high dynamic radial loads of up to 12870 lbf.

The phenolic cage in 71920 ACDGC/P4A Bearing reduces friction and noise, enhancing performance in precision tasks.
With a maximum speed of 15,000 rpm, it maintains smooth operation even at high speeds.

71920 ACDGC/P4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its universal matching capability allows flexible arrangements like back-to-back or face-to-face configurations.

The P4A tolerance class ensures high precision, making 71920 ACDGC/P4A Bearing suitable for demanding applications.
Its moderate preload (Class C) balances performance and longevity.

Application

Industrial Uses of 71920 ACDGC/P4A Bearing
71920 ACDGC/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload helps maintain stability during heavy cutting operations.

Where Is 71920 ACDGC/P4A Bearing Used?
You’ll often find 71920 ACDGC/P4A Bearing in automotive transmissions, where it handles both radial and axial loads efficiently. Its phenolic cage reduces friction, making it suitable for high-speed applications.

Built for Heavy-Duty Use: 71920 ACDGC/P4A Bearing
71920 ACDGC/P4A Bearing excels in robotics, particularly in robotic arms requiring precise movement. The chrome steel construction ensures durability even in demanding environments.

Automotive vs Aerospace: Applications of 71920 ACDGC/P4A Bearing
In automotive systems, 71920 ACDGC/P4A Bearing supports gearbox components, while in aerospace, it’s used in flight control systems. Its P4A tolerance class guarantees reliability in both fields.

Perfect Fit for Automation: 71920 ACDGC/P4A Bearing
71920 ACDGC/P4A Bearing is ideal for automated production lines, where its high-speed capability and precision are crucial. The open design allows for easy lubrication, extending its service life.

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