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Super Precision Angular Contact Ball Bearings 71909 ACDGB/P4A

Super Precision Angular Contact Ball Bearings 71909 ACDGB/P4A

The 71909 ACDGB/P4A 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 2790 lbf and spins smoothly at speeds up to 41,000 RPM.

Its 25° contact angle and light preload ensure precise performance, while the phenolic cage reduces friction for quiet operation. The bearing works well in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings and comes lubricated for easy use. Ideal for high-precision applications like machine tools or spindle drives where accuracy is key.

Weighing just 0.13kg, it’s lightweight yet robust. The universal matching design allows flexible arrangements like back-to-back or face-to-face setups. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71909 ACDGB/P4A
  • 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 12 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 No
  • Number Of Bearings In Matched Set 3
  • 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 2790 lbf
  • Static Radial Load 2025 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.13 kg
  • Price（$） 52.416
Super Precision Angular Contact Ball Bearings 71909 ACDGB/P4A dimension drawing
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Features

How Does 71909 ACDGB/P4A Bearing Ensure Precision in High-Speed Applications?

71909 ACDGB/P4A Bearing features a 25° contact angle, optimised for angular contact loads and high-speed performance.
Its chrome steel construction and phenolic cage enhance durability while maintaining smooth operation.

With a maximum speed of 41,000 rpm, it delivers reliable performance in demanding conditions.
The P4A tolerance class ensures precise alignment, reducing vibration and noise.

Its dynamic radial load capacity of 2790 lbf makes it suitable for heavy-duty applications.
The open design allows for easy lubrication, extending the bearing’s service life.

Application

Industrial Uses of 71909 ACDGB/P4A Bearing
71909 ACDGB/P4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for continuous operation.

Where Is 71909 ACDGB/P4A Bearing Used?
In automotive applications, 71909 ACDGB/P4A Bearing supports components like electric motors and transmissions, thanks to its light preload and high-speed capability. The chrome steel construction enhances durability under demanding conditions.

Built for Heavy-Duty Use: 71909 ACDGB/P4A Bearing
For robotics and automation, 71909 ACDGB/P4A Bearing provides reliable performance in robotic arms and CNC machines. Its open design allows for easy lubrication, extending service life in high-use environments.

Medical vs Industrial: Where 71909 ACDGB/P4A Bearing Excels
In medical imaging devices, 71909 ACDGB/P4A Bearing offers smooth operation with minimal noise, crucial for sensitive equipment. Its P4A tolerance class ensures consistent performance in both medical and industrial settings.

Practical Applications of 71909 ACDGB/P4A Bearing
71909 ACDGB/P4A Bearing is ideal for 3D printers, where its high-speed capability and precision enhance print quality. The metric sizing makes it compatible with a wide range of European and Asian machinery.

Q&A

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