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Super Precision Angular Contact Ball Bearings 71820 CD/HCP4

Super Precision Angular Contact Ball Bearings 71820 CD/HCP4

The 71820 CD/HCP4 is a super precision angular contact ball bearing with a 100mm bore and 125mm outer diameter, crafted from high-quality chrome steel and ceramic balls. It handles radial loads up to 5062 lbf and spins smoothly at speeds up to 17,000 RPM.

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

With a P4 tolerance class, it offers exceptional accuracy, making it suitable for high-precision applications like machine tools or spindle assemblies. The ceramic balls reduce friction, enhancing longevity.

Weighing just 0.28kg, it’s a lightweight yet robust choice for demanding environments. It’s also interchangeable with SKF bearings, simplifying replacements.

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Product Parameters

  • Part Number 71820 CD/HCP4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 34
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 5062 lbf
  • Static Radial Load 6525 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 17000 rpm
  • Weight 0.28 kg
  • Price（$） 1271.466
Super Precision Angular Contact Ball Bearings 71820 CD/HCP4 dimension drawing
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Features

Why Choose 71820 CD/HCP4 Bearing for Precision Tasks?

71820 CD/HCP4 Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its ceramic balls and chrome steel rings ensure smooth operation with minimal friction.

The phenolic cage maintains ball alignment, enhancing durability even at high speeds up to 17,000 rpm.
With a dynamic radial load capacity of 5062 lbf, it handles demanding tasks reliably.

Precision-ground to P4 tolerance, 71820 CD/HCP4 Bearing delivers consistent performance in critical applications.
Its open design allows for easy lubrication, ensuring long service life.

Application

Industrial Uses of 71820 CD/HCP4 Bearing
71820 CD/HCP4 Bearing is commonly used in high-speed machine tools, where its 15° contact angle ensures smooth operation under radial and axial loads. The ceramic balls reduce friction, making it suitable for precision grinding applications.

In automotive systems, 71820 CD/HCP4 Bearing supports components like electric motors and gearboxes, where its phenolic cage offers stability at high RPMs. The P4 tolerance class ensures consistent performance in demanding conditions.

For robotics, 71820 CD/HCP4 Bearing’s matched arrangement allows for precise movement in robotic arms and automated systems. Its open design simplifies lubrication, extending service life in continuous operation.

Medical imaging devices benefit from 71820 CD/HCP4 Bearing’s low friction and high-speed capabilities, ensuring quiet and reliable performance. The chrome steel rings provide durability in sterile environments.

In consumer electronics, 71820 CD/HCP4 Bearing is found in high-end printers and scanners, where its precision enhances print quality. The lightweight design also contributes to energy efficiency.

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