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Super Precision Angular Contact Ball Bearings 71924 ACDGA/P4A

Super Precision Angular Contact Ball Bearings 71924 ACDGA/P4A

The 71924 ACDGA/P4A is a super precision angular contact ball bearing with a 120mm bore and 165mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 16380 lbf and operates smoothly at speeds up to 10000 RPM.

Its 25° contact angle and extra light preload ensure precise performance, while the phenolic cage offers durability. The bearing works well in temperatures from -30°C to 110°C and comes pre-lubricated for easy use.

This model is interchangeable with SKF bearings and can be paired in back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision applications like machine tools or spindle drives where accuracy is key.

Weighing 1.15kg, it’s a robust choice for demanding environments. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71924 ACDGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 120 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 165 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 22 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 14.288 mm
  • Ball Qty 28
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 16380 lbf
  • Static Radial Load 19462 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 10000 rpm
  • Weight 1.15 kg
  • Price（$） 426.96
Super Precision Angular Contact Ball Bearings 71924 ACDGA/P4A dimension drawing
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Features

Performance Features of 71924 ACDGA/P4A Bearing

71924 ACDGA/P4A Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
The chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 16380 lbf, it handles demanding conditions reliably.
Its P4A tolerance class guarantees consistent performance in high-precision environments.

The bearing operates efficiently at speeds up to 10,000 rpm, balancing speed and stability.
Its open design allows for easy lubrication, maintaining performance across a temperature range of -30°C to 110°C.

Application

Key Fields for 71924 ACDGA/P4A Bearing
71924 ACDGA/P4A Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.

In aerospace applications, 71924 ACDGA/P4A Bearing handles radial and axial loads in turbine engines, thanks to its chrome steel construction. The extra light preload also minimises vibration, enhancing flight stability.

For robotics, 71924 ACDGA/P4A Bearing provides smooth motion in articulated arms, with its P4A tolerance class ensuring repeatable precision. The open seal design allows for easy lubrication in demanding environments.

Automotive vs Aerospace: Applications of 71924 ACDGA/P4A Bearing
In automotive systems, 71924 ACDGA/P4A Bearing supports gearbox components, where its high dynamic load capacity extends service life. The metric sizing ensures compatibility with European and Asian models.

Aerospace relies on 71924 ACDGA/P4A Bearing for landing gear mechanisms, where its temperature range (-30°C to 110°C) suits extreme conditions. The universal matching feature simplifies maintenance in tight spaces.

Where Is 71924 ACDGA/P4A Bearing Used?
You’ll find 71924 ACDGA/P4A Bearing in medical imaging devices, where its low vibration is critical for clear scans. The chrome steel balls ensure consistent performance over time.

It’s also common in 3D printers, where the angular contact design maintains print head alignment. The lubricated build reduces wear during continuous operation.

Q&A

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