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Super Precision Angular Contact Ball Bearings 71820 CD/P4DGC

Super Precision Angular Contact Ball Bearings 71820 CD/P4DGC

The 71820 CD/P4DGC is a super precision angular contact ball bearing with a 100mm bore and 125mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 8348 lbf and operates smoothly at speeds up to 15000 RPM.

With a 15° contact angle and open design, it offers excellent performance in high-speed applications. The phenolic cage ensures quiet operation and long service life, even under moderate preload conditions.

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

Weighing 0.62kg, it works in temperatures from -30°C to 110°C and is interchangeable with SKF bearings, making it a versatile choice for replacements or upgrades.

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Product Parameters

  • Part Number 71820 CD/P4DGC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 26 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 34
  • Contact Angle 15°
  • Tolerance Class P4
  • 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 Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 8348 lbf
  • Static Radial Load 13162 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.62 kg
Super Precision Angular Contact Ball Bearings 71820 CD/P4DGC dimension drawing
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Features

Performance Features of 71820 CD/P4DGC Bearing

71820 CD/P4DGC Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls provide durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 8348 lbf, 71820 CD/P4DGC Bearing handles demanding conditions reliably.
The universal matching design allows flexible arrangements, including back-to-back or face-to-face configurations.

Operating at speeds up to 15,000 rpm, 71820 CD/P4DGC Bearing maintains precision in high-performance settings.
Its P4 tolerance class ensures consistent accuracy, making it suitable for precision machinery.

Application

Industrial Uses of 71820 CD/P4DGC Bearing
71820 CD/P4DGC Bearing is commonly used in high-precision machine tools, where its moderate preload and 15° contact angle ensure accurate spindle performance. The open design and phenolic cage make it suitable for high-speed operations without compromising stability.

Where Is 71820 CD/P4DGC Bearing Used?
You’ll often find 71820 CD/P4DGC Bearing in automotive transmissions, where its angular contact design handles both radial and axial loads efficiently. The universal matching feature allows for flexible arrangements in compact spaces.

Built for Heavy-Duty Use: 71820 CD/P4DGC Bearing
71820 CD/P4DGC Bearing excels in robotics, particularly in robotic arms requiring smooth, precise movement. Its chrome steel construction and P4 tolerance class provide reliability in demanding automated environments.

Medical vs Industrial: Where 71820 CD/P4DGC Bearing Excels
In medical imaging devices, 71820 CD/P4DGC Bearing offers quiet operation and durability, while in industrial pumps, it handles high speeds with ease. The lubricated design ensures long service life in both applications.

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