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Super Precision Angular Contact Ball Bearings 71909 ACD/P4AQGC

Super Precision Angular Contact Ball Bearings 71909 ACD/P4AQGC

The 71909 ACD/P4AQGC is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 7312 lbf and spins smoothly at speeds up to 41,000 RPM.

Its 25° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face. The phenolic cage ensures quiet operation and long service life.

This bearing comes pre-lubricated and works in temperatures from -30°C to 110°C. Its P4A tolerance class guarantees high precision for demanding applications.

Ideal for machine tools or high-speed spindles where accuracy is crucial. Sold in matched sets of four for balanced performance. Weighs just 0.52kg despite its robust construction.

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Product Parameters

  • Part Number 71909 ACD/P4AQGC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 48 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 23
  • 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 Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 7312 lbf
  • Static Radial Load 8100 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.52 kg
Super Precision Angular Contact Ball Bearings 71909 ACD/P4AQGC dimension drawing
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Features

How Is 71909 ACD/P4AQGC Bearing Engineered for Reliability?

71909 ACD/P4AQGC Bearing features a 25° contact angle, optimised for handling combined radial and axial loads.
Its chrome steel rings and balls provide durability, while the phenolic cage ensures smooth operation at high speeds.
With a dynamic radial load capacity of 7312 lbf, it performs reliably in demanding applications.
The universal matching design allows flexible installation in back-to-back, face-to-face, or tandem arrangements.

What Makes 71909 ACD/P4AQGC Bearing Suitable for High-Temperature Applications?

71909 ACD/P4AQGC Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its chrome steel construction maintains structural integrity even under thermal stress.
The phenolic cage material resists heat, ensuring consistent performance.
Lubrication further enhances its ability to function smoothly in varied conditions.

Designed for Durability: 71909 ACD/P4AQGC Bearing

71909 ACD/P4AQGC Bearing’s chrome steel components resist wear, extending its service life.
The precision P4A tolerance class ensures consistent performance in high-speed applications.
With a maximum speed of 41,000 rpm, it balances speed and reliability.
Its universal matching capability simplifies installation in complex configurations.

Application

Common Applications of 71909 ACD/P4AQGC Bearing
71909 ACD/P4AQGC Bearing is widely used in high-speed machine tools, where its precision and moderate preload ensure smooth spindle operation. The universal matching design allows for flexible arrangements, making it suitable for complex setups.

Industrial Uses of 71909 ACD/P4AQGC Bearing
In automation systems, 71909 ACD/P4AQGC Bearing supports robotic arms and CNC machinery, thanks to its angular contact design and high dynamic load capacity. The phenolic cage adds durability in demanding environments.

Where Is 71909 ACD/P4AQGC Bearing Used?
You’ll often find 71909 ACD/P4AQGC Bearing in aerospace applications, such as helicopter gearboxes, where its P4A tolerance class guarantees reliability. Its chrome steel construction handles both radial and axial loads effortlessly.

Built for Heavy-Duty Use: 71909 ACD/P4AQGC Bearing
71909 ACD/P4AQGC Bearing excels in industrial pumps and compressors, where its high-speed capability and lubrication ensure long service life. The matched set of four bearings simplifies installation and maintenance.

Automotive vs Aerospace: Applications of 71909 ACD/P4AQGC Bearing
In automotive systems, 71909 ACD/P4AQGC Bearing enhances performance in turbochargers and transmissions. For aerospace, its precision and temperature stability make it ideal for flight control systems.

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