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Super Precision Angular Contact Ball Bearings 71920 ACEGA/P4A

Super Precision Angular Contact Ball Bearings 71920 ACEGA/P4A

The 71920 ACEGA/P4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and is designed for angular contact loads, handling up to 8348 lbf dynamically.

Its open design and phenolic cage ensure smooth operation at speeds up to 16,000 RPM, even in temperatures ranging from -30°C to 110°C. The bearing comes pre-lubricated for immediate use and has an extra light preload for precision applications.

This model is interchangeable with SKF bearings and can be used in matched sets of four for back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision machinery like CNC spindles or medical equipment where accuracy is crucial.

Weighing 0.77kg, it offers a balance of strength and lightweight performance. Its P4A tolerance class ensures exceptional precision for demanding industrial uses.

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Product Parameters

  • Part Number 71920 ACEGA/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 24
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 4
  • 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 8348 lbf
  • Static Radial Load 6750 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 0.77 kg
Super Precision Angular Contact Ball Bearings 71920 ACEGA/P4A dimension drawing
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Features

Performance Features of 71920 ACEGA/P4A Bearing

71920 ACEGA/P4A Bearing is designed with a 25° contact angle, ideal for handling both radial and axial loads efficiently.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 8348 lbf, it performs reliably in high-speed applications.
The extra light preload (Class A) enhances precision, making it suitable for demanding tasks.

71920 ACEGA/P4A Bearing operates smoothly at speeds up to 16,000 rpm, maintaining stability.
Its temperature range of -30°C to 110°C allows for versatile use in various environments.

The open design simplifies lubrication, ensuring consistent performance over time.
Its universal matching capability (back-to-back, face-to-face, or tandem) offers flexibility in installation.

Application

Industrial Uses of 71920 ACEGA/P4A Bearing
71920 ACEGA/P4A Bearing is commonly 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.

Where Is 71920 ACEGA/P4A Bearing Used?
In automotive applications, 71920 ACEGA/P4A Bearing supports wheel hubs and transmission systems, thanks to its ability to handle both radial and axial loads. Its P4A tolerance class guarantees consistent performance under demanding conditions.

Optimized for Performance: 71920 ACEGA/P4A Bearing
For robotics and automation, 71920 ACEGA/P4A Bearing provides reliable motion control in robotic arms and CNC machines. The chrome steel construction ensures durability even in continuous operation.

Medical vs Industrial: Where 71920 ACEGA/P4A Bearing Excels
In medical imaging devices, 71920 ACEGA/P4A Bearing offers smooth and quiet operation, essential for patient comfort. Its high-speed capability also makes it a fit for industrial pumps and compressors.

Light-Duty vs Heavy-Duty: Best Uses for 71920 ACEGA/P4A Bearing
71920 ACEGA/P4A Bearing works well in both light-duty applications like dental drills and heavy-duty uses such as wind turbine gearboxes. The extra light preload ensures minimal energy loss.

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