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Super Precision Angular Contact Ball Bearings 71920 CE/P4A

Super Precision Angular Contact Ball Bearings 71920 CE/P4A

The 71920 CE/P4A 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 8775 lbf and operates smoothly at speeds up to 20,500 RPM.

Its 15° contact angle and phenolic cage ensure stable performance under angular loads, while the open design allows for easy lubrication. The bearing works reliably in temperatures ranging from -30°C to 110°C.

This model meets the P4 tolerance class (ABEC-7), making it suitable for high-precision applications. Ideal for use in machine tools or spindle systems where accuracy and speed are crucial.

Weighing 0.77kg, it’s a robust yet manageable size for industrial settings. Compatible with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71920 CE/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 24
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 8775 lbf
  • Static Radial Load 7088 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 20500 rpm
  • Weight 0.77 kg
  • Price（$） 123.66
Super Precision Angular Contact Ball Bearings 71920 CE/P4A dimension drawing
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Features

Performance Features of 71920 CE/P4A Bearing

71920 CE/P4A Bearing is designed with a 15° contact angle, optimising it for angular contact load applications.
Its chrome steel rings and balls ensure durability and consistent performance under high radial loads.

The phenolic cage in 71920 CE/P4A Bearing enhances stability, reducing friction and wear during operation.
With a dynamic radial load capacity of 8775 lbf, it handles demanding conditions effectively.

71920 CE/P4A Bearing operates smoothly at speeds up to 20,500 rpm, making it suitable for high-speed applications.
Its P4 tolerance class ensures precision, meeting the requirements of ABEC-7 standards.

The open design of 71920 CE/P4A Bearing allows for easy lubrication, maintaining performance over time.
Its temperature range of -30° to 110°C ensures reliability in various operating environments.

Application

Key Fields for 71920 CE/P4A Bearing
71920 CE/P4A Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The open seal type allows for easy lubrication, extending its service life in demanding conditions.
In automotive applications, 71920 CE/P4A Bearing supports components like wheel hubs and transmissions, handling both radial and axial loads efficiently. Its phenolic cage material reduces friction, making it suitable for high-speed operations.
For medical imaging devices, 71920 CE/P4A Bearing’s chrome steel construction provides reliability and smooth operation. The P4 tolerance class ensures minimal vibration, crucial for sensitive equipment.
Automation systems benefit from 71920 CE/P4A Bearing’s ability to handle high speeds and precise movements. Its lightweight design and phenolic cage make it ideal for robotic arms and CNC machines.
In consumer electronics, 71920 CE/P4A Bearing is found in high-performance printers and scanners. Its durability and low maintenance requirements make it a cost-effective choice for everyday use.

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