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Super Precision Angular Contact Ball Bearings 71918 CD/HCP4ATGA

Super Precision Angular Contact Ball Bearings 71918 CD/HCP4ATGA

The 71918 CD/HCP4ATGA is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 22725 lbf and reaches speeds of 15000 RPM, thanks to its ceramic balls and phenolic cage.

With a 15° contact angle and open design, it offers smooth operation and easy maintenance. The bearing comes preloaded for extra light performance, ensuring minimal friction and precise movement.

This universal matching set includes three bearings, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision applications like machine tools or aerospace systems where accuracy is key.

Weighing 1.42kg, it operates in temperatures from -30°C to 110°C. Compliant with P4A tolerance class, it’s interchangeable with SKF bearings for reliable replacements.

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Product Parameters

  • Part Number 71918 CD/HCP4ATGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 54 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 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 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 22725 lbf
  • Static Radial Load 34425 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 1.42 kg
Super Precision Angular Contact Ball Bearings 71918 CD/HCP4ATGA dimension drawing
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Features

Performance Features of 71918 CD/HCP4ATGA Bearing

71918 CD/HCP4ATGA Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.

The phenolic cage ensures stability at high speeds, supporting a maximum of 15,000 rpm.
With universal matching capability, it offers flexibility in back-to-back, face-to-face, or tandem arrangements.

Dynamic radial load capacity reaches 22,725 lbf, making it suitable for demanding precision tasks.
The extra light preload (Class A) ensures minimal friction and consistent performance.

Application

Industrial Uses of 71918 CD/HCP4ATGA Bearing
71918 CD/HCP4ATGA Bearing is commonly used in high-precision machine tools, where its 15° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it suitable for high-speed spindle applications.

In automotive systems, 71918 CD/HCP4ATGA Bearing supports components like electric motors and gearboxes, thanks to its universal matching design. The extra light preload enhances performance in both back-to-back and face-to-face configurations.

For medical imaging devices, 71918 CD/HCP4ATGA Bearing’s phenolic cage and chrome steel rings provide reliable operation. Its P4A tolerance class ensures the precision needed for sensitive diagnostic equipment.

Automation & robotics benefit from 71918 CD/HCP4ATGA Bearing’s low friction and high-speed capabilities. The lubricated design ensures smooth movement in robotic arms and CNC machinery.

In consumer electronics, 71918 CD/HCP4ATGA Bearing is ideal for high-end printers and scanners. Its ceramic balls and phenolic cage reduce noise, making it perfect for quiet home environments.

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