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Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQGB

Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQGB

The 71920 ACD/P4AQGB is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 33975 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 the bearing lightweight.

This bearing is lubricated for easy maintenance and performs well in temperatures from -30°C to 110°C. It comes in a matched set of four, making it perfect for high-precision applications like machine tool spindles or aerospace systems.

Weighing 3.2kg, it balances strength and precision, meeting P4A tolerance standards for reliable performance. Interchangeable with SKF bearings, it’s a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 71920 ACD/P4AQGB
  • 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 80 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 4
  • 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 33975 lbf
  • Static Radial Load 56250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 3.2 kg
Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQGB dimension drawing
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Features

Performance Features of 71920 ACD/P4AQGB Bearing

71920 ACD/P4AQGB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its universal matching capability allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

The chrome steel rings and balls ensure high durability under dynamic radial loads up to 33,975 lbf.
With a phenolic cage, it maintains stability at speeds up to 15,000 rpm.

71920 ACD/P4AQGB Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its P4A tolerance class guarantees precision performance in demanding conditions.

The lubricated design reduces friction, ensuring smooth operation over extended periods.
Its light preload (Class B) enhances accuracy while minimising wear.

Application

Essential Roles of 71920 ACD/P4AQGB Bearing
71920 ACD/P4AQGB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and universal matching make it adaptable for various configurations, enhancing machine performance.

In aerospace applications, 71920 ACD/P4AQGB Bearing supports critical components like turbine shafts, thanks to its high dynamic radial load capacity. The phenolic cage reduces friction, making it suitable for high-speed operations.

For automation systems, 71920 ACD/P4AQGB Bearing is ideal for robotic arms, providing smooth movement under angular loads. Its P4A tolerance class ensures consistent precision in repetitive tasks.

Medical imaging devices benefit from 71920 ACD/P4AQGB Bearing’s reliable performance, where minimal vibration is crucial. The chrome steel construction offers durability in sterile environments.

In electric vehicle motors, 71920 ACD/P4AQGB Bearing handles high speeds efficiently, contributing to longer component life. The open design allows for easy lubrication, maintaining optimal performance.

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