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Super Precision Angular Contact Ball Bearings 71920 CDGA/P4A

Super Precision Angular Contact Ball Bearings 71920 CDGA/P4A

The 71920 CDGA/P4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel. It features a 15° contact angle and is designed for high-speed operations up to 16,000 RPM.

Its phenolic cage ensures smooth rotation, while the open design allows for easy lubrication. The bearing handles radial loads up to 13,612 lbf and operates in temperatures from -30°C to 110°C.

With a P4A tolerance class, it offers exceptional accuracy for demanding applications. The bearing can be used in matched sets for back-to-back, face-to-face, or tandem arrangements.

Ideal for precision machinery like spindles or CNC equipment, this model is interchangeable with SKF bearings. Weighing 0.8kg, it balances performance and durability in compact spaces.

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Product Parameters

  • Part Number 71920 CDGA/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 26
  • Contact Angle 15°
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 13612 lbf
  • Static Radial Load 14738 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 0.8 kg
  • Price（$） 247.14
Super Precision Angular Contact Ball Bearings 71920 CDGA/P4A dimension drawing
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Features

Why Choose 71920 CDGA/P4A Bearing for Precision Tasks?

71920 CDGA/P4A Bearing features a 15° contact angle, ideal for handling combined radial and axial loads with precision.
Its chrome steel construction ensures durability and smooth operation in high-speed applications.

With a dynamic radial load capacity of 13612 lbf, 71920 CDGA/P4A Bearing performs reliably under demanding conditions.
The phenolic cage maintains ball alignment, reducing friction and extending service life.

71920 CDGA/P4A Bearing operates efficiently at speeds up to 16,000 rpm, making it suitable for precision machinery.
Its open design allows for easy lubrication, ensuring consistent performance over time.

The P4A tolerance class guarantees high accuracy, essential for applications requiring tight tolerances.
71920 CDGA/P4A Bearing’s universal matching capability offers flexibility in various mounting configurations.

Application

Industrial Uses of 71920 CDGA/P4A Bearing
71920 CDGA/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The extra light preload helps maintain stability during high-speed operations.

In aerospace applications, 71920 CDGA/P4A Bearing supports components like turbine shafts, thanks to its P4A tolerance class. The phenolic cage reduces friction, making it suitable for demanding environments.

For automation systems, 71920 CDGA/P4A Bearing is ideal for robotic arms, providing smooth movement under radial loads. Its chrome steel construction offers durability in continuous operation scenarios.

Medical imaging devices benefit from 71920 CDGA/P4A Bearing’s precision, ensuring reliable performance in sensitive equipment. The open design allows for easy lubrication, extending service life.

In electric motors, 71920 CDGA/P4A Bearing handles high speeds efficiently, thanks to its balanced design. The metric dimensions make it compatible with a variety of motor configurations.

Q&A

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