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Super Precision Angular Contact Ball Bearings 71913 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71913 CDGA/HCP4A

The 71913 CDGA/HCP4A is a super precision angular contact ball bearing with a 65mm bore and 90mm outer diameter, designed for high-speed applications. Its 15° contact angle and ceramic balls ensure smooth operation under radial loads up to 4680 lbf.

Made from chrome steel with a phenolic cage, it offers durability and can handle speeds up to 31,000 RPM. The extra light preload (Class A) minimises friction, making it ideal for precision machinery.

This bearing is suitable for temperatures between -30°C and 110°C and comes lubricated for easy maintenance. It can be used in matched sets of three, arranged back-to-back, face-to-face, or tandem.

Weighing just 0.17kg, it’s a lightweight yet robust choice for applications like spindles or high-speed motors. Compliant with P4A tolerance standards for exceptional accuracy.

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Product Parameters

  • Part Number 71913 CDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 65 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 26
  • Contact Angle 15°
  • Tolerance Class P4A
  • 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 4680 lbf
  • Static Radial Load 3825 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 31000 rpm
  • Weight 0.17 kg
Super Precision Angular Contact Ball Bearings 71913 CDGA/HCP4A dimension drawing
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Features

Performance Features of 71913 CDGA/HCP4A Bearing

71913 CDGA/HCP4A Bearing is designed with a 15° contact angle, optimising it for high-speed angular contact applications.
The chrome steel rings and ceramic balls reduce friction, enhancing performance and longevity.

With a dynamic radial load capacity of 4680 lbf, it handles demanding conditions reliably.
Its extra light preload ensures smooth operation, making it suitable for precision tasks.

The phenolic cage maintains ball alignment, reducing wear and noise.
71913 CDGA/HCP4A Bearing operates at speeds up to 31,000 rpm, balancing speed and durability.

Its temperature range of -30°C to 110°C allows use in varied environments.
The P4A tolerance class ensures high precision and consistent performance.

Application

Industrial Uses of 71913 CDGA/HCP4A Bearing
71913 CDGA/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The 15° contact angle ensures stable performance under combined radial and axial loads.

In automotive applications, 71913 CDGA/HCP4A Bearing fits well in precision components like electric motor shafts, offering smooth rotation at high speeds. Its P4A tolerance class makes it suitable for demanding drivetrain systems.

For automation equipment, 71913 CDGA/HCP4A Bearing’s lightweight design and high-speed capability are ideal for robotic arms and CNC spindles. The open seal type allows for easy relubrication, extending service life in continuous operation.

Medical imaging devices benefit from 71913 CDGA/HCP4A Bearing’s low vibration and noise levels, crucial for sensitive diagnostic equipment. The chrome steel rings provide durability without compromising precision.

In consumer electronics, 71913 CDGA/HCP4A Bearing can be found in high-performance cooling fans, where its ceramic balls ensure quiet and efficient operation. The metric sizing makes it compatible with various compact designs.

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