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Super Precision Angular Contact Ball Bearings 71811 CDGA/HCP4

Super Precision Angular Contact Ball Bearings 71811 CDGA/HCP4

The 71811 CDGA/HCP4 is a super precision angular contact ball bearing with a 55mm bore and 72mm outer diameter, crafted from high-quality chrome steel. Its compact 9mm width makes it suitable for tight spaces, while the ceramic balls enhance performance.

This bearing handles radial loads up to 2272 lbf and spins smoothly at speeds up to 34,000 RPM. The phenolic cage ensures durability, and the open design allows for easy lubrication.

With a 15° contact angle, it’s ideal for applications requiring high precision, such as machine tools or spindle drives. The extra-light preload (Class A) ensures smooth operation under light loads.

It’s interchangeable with SKF bearings and comes in a matched set of three, offering flexibility for back-to-back, face-to-face, or tandem arrangements. Weighing just 0.073kg, it’s lightweight yet robust.

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Product Parameters

  • Part Number 71811 CDGA/HCP4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 72 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 29
  • Contact Angle 15°
  • Tolerance Class P4
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2272 lbf
  • Static Radial Load 2430 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.073 kg
Super Precision Angular Contact Ball Bearings 71811 CDGA/HCP4 dimension drawing
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Features

Performance Features of 71811 CDGA/HCP4 Bearing

71811 CDGA/HCP4 Bearing features a 15° contact angle, optimised for handling combined radial and axial loads.
The chrome steel rings and ceramic balls reduce friction, enhancing speed capabilities up to 34,000 rpm.

Its phenolic cage ensures smooth operation, even at high speeds, while maintaining alignment of the 29 ceramic balls.
The extra-light preload (Class A) minimises vibration, making it ideal for precision applications.

With a dynamic radial load capacity of 2272 lbf, 71811 CDGA/HCP4 Bearing delivers reliable performance.
The P4 tolerance class guarantees high precision, suitable for demanding industrial uses.

Designed for universal matching, it supports back-to-back, face-to-face, or tandem arrangements.
This flexibility allows for custom configurations to meet specific load and space requirements.

Application

Ideal for Precision: 71811 CDGA/HCP4 Bearing
The 71811 CDGA/HCP4 Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. Its P4 tolerance ensures consistent performance in demanding industrial settings.

In automotive applications, 71811 CDGA/HCP4 Bearing works well in electric motor systems, thanks to its angular contact design handling combined loads efficiently. The extra-light preload also minimises vibration for smoother operation.

For medical imaging devices, 71811 CDGA/HCP4 Bearing’s chrome steel rings provide durability while maintaining precision. The open seal design allows for easy lubrication, extending service life in critical equipment.

Automation systems benefit from 71811 CDGA/HCP4 Bearing’s ability to handle high rotational speeds up to 34,000 rpm. Its universal matching capability makes it versatile for robotic arm assemblies.

In consumer electronics, 71811 CDGA/HCP4 Bearing’s compact 55mm bore suits precision spindle motors in printers and scanners. The ceramic balls ensure quiet operation for noise-sensitive environments.

Q&A

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