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Super Precision Angular Contact Ball Bearings 71920 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71920 CDGA/HCP4A

The 71920 CDGA/HCP4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel and ceramic balls. It handles radial loads up to 13612 lbf and operates smoothly at speeds up to 16000 RPM.

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

This model is interchangeable with SKF bearings and comes in a universal matching set of three, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision applications like machine tools or spindle drives.

Weighing 0.67kg, it offers a balance of strength and precision. Compliant with P4A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71920 CDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 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 13612 lbf
  • Static Radial Load 14738 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 0.67 kg
Super Precision Angular Contact Ball Bearings 71920 CDGA/HCP4A dimension drawing
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Features

Performance Features of 71920 CDGA/HCP4A Bearing

71920 CDGA/HCP4A 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.

The phenolic cage ensures smooth operation, even at high speeds up to 16,000 rpm.
With a dynamic radial load capacity of 13,612 lbf, it handles demanding conditions reliably.

71920 CDGA/HCP4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its P4A tolerance class guarantees precision, making it suitable for high-accuracy tasks.

The open design allows for easy lubrication, maintaining performance over time.
This bearing is part of a universal matching set, offering flexibility in installation configurations.

Application

Common Applications of 71920 CDGA/HCP4A Bearing
71920 CDGA/HCP4A Bearing is widely 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 radial and axial loads.

In robotics, 71920 CDGA/HCP4A Bearing provides smooth motion for articulated arms and precision joints. Its P4A tolerance class makes it suitable for applications demanding tight rotational accuracy.

For aerospace components, 71920 CDGA/HCP4A Bearing’s lightweight design and high-speed capability are ideal for gyroscopes and navigation systems. The chrome steel rings offer durability in demanding environments.

Medical imaging devices benefit from 71920 CDGA/HCP4A Bearing’s quiet operation and minimal vibration. The open design allows for easy lubrication, extending service life in critical equipment.

In electric motors, 71920 CDGA/HCP4A Bearing supports high RPM requirements while maintaining low noise levels. The extra light preload ensures efficient energy transfer with minimal resistance.

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