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Super Precision Angular Contact Ball Bearings 71920 CD/P4ADGA

Super Precision Angular Contact Ball Bearings 71920 CD/P4ADGA

The 71920 CD/P4ADGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. Its 15° contact angle and extra light preload ensure smooth operation under radial loads up to 21938 lbf.

Designed for high-speed applications, it can handle up to 16000 RPM while maintaining stability. The open seal type and phenolic cage make it easy to maintain and durable for long-term use.

This bearing is part of a matched set, suitable for universal mounting in back-to-back, face-to-face, or tandem arrangements. Ideal for precision machinery like spindles or high-speed tools where accuracy is key.

With a temperature range of -30°C to 110°C and compliance with P4A tolerance standards, it offers reliable performance in demanding conditions. Weighing 1.6kg, it balances strength and precision effortlessly.

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Product Parameters

  • Part Number 71920 CD/P4ADGA
  • 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 40 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 Universal matching
  • 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 21938 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 1.6 kg
  • Price（$） 694.458
Super Precision Angular Contact Ball Bearings 71920 CD/P4ADGA dimension drawing
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Features

Performance Features of 71920 CD/P4ADGA Bearing

71920 CD/P4ADGA Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls provide strong resistance to radial and angular loads.

The phenolic cage ensures smooth operation at high speeds, up to 16,000 rpm.
Universal matching allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

With a dynamic radial load capacity of 21,938 lbf, it delivers reliable performance in demanding conditions.
The extra light preload (Class A) enhances precision while reducing friction.

Its open design simplifies lubrication, maintaining efficiency across a temperature range of -30°C to 110°C.
The P4A tolerance class ensures consistent accuracy for high-precision machinery.

Application

Common Applications of 71920 CD/P4ADGA Bearing
71920 CD/P4ADGA 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 robotics, 71920 CD/P4ADGA Bearing supports articulated arms, providing smooth movement and long service life. Its universal matching feature allows flexible installation in various configurations.

For aerospace applications, 71920 CD/P4ADGA Bearing handles radial and axial loads in aircraft components. The P4A tolerance class guarantees consistent performance under demanding conditions.

Medical imaging devices benefit from 71920 CD/P4ADGA Bearing’s low vibration and high precision. The chrome steel construction ensures reliability in critical diagnostic equipment.

In automotive systems, 71920 CD/P4ADGA Bearing is found in gearboxes and electric motors. Its extra light preload enhances efficiency and reduces energy consumption.

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