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Super Precision Angular Contact Ball Bearings 71907 CDGB/HCP4A

Super Precision Angular Contact Ball Bearings 71907 CDGB/HCP4A

The 71907 CDGB/HCP4A is a super precision angular contact ball bearing with a 35mm bore and 55mm outer diameter, crafted from chrome steel and ceramic balls for enhanced durability. It handles radial loads up to 2194 lbf and reaches speeds of 56,000 RPM, making it suitable for high-performance applications.

Its 15° contact angle and light preload ensure smooth operation, while the phenolic cage reduces friction. The open design allows for easy lubrication, extending its lifespan in temperatures from -30°C to 110°C.

This bearing is part of a universal matching set, compatible with back-to-back, face-to-face, or tandem arrangements. Ideal for precision machinery like spindles or high-speed tools where accuracy is crucial.

Weighing just 0.068kg, it’s lightweight yet robust, meeting P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71907 CDGB/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 35 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 55 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 10 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 21
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2194 lbf
  • Static Radial Load 1474 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.068 kg
Super Precision Angular Contact Ball Bearings 71907 CDGB/HCP4A dimension drawing
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Features

Performance Features of 71907 CDGB/HCP4A Bearing

71907 CDGB/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls reduce friction, enhancing speed capabilities up to 56,000 rpm.

The phenolic cage ensures smooth operation, even under dynamic radial loads of 2194 lbf.
This lightweight bearing weighs just 0.068 kg, making it suitable for precision machinery.

With a P4A tolerance class, 71907 CDGB/HCP4A Bearing delivers consistent performance in temperatures from -30°C to 110°C.
Its universal matching capability allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

Application

Industrial Uses of 71907 CDGB/HCP4A Bearing
71907 CDGB/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4A tolerance class ensures precise alignment for smooth operation in demanding conditions.

In robotics, 71907 CDGB/HCP4A Bearing provides reliable angular contact support for articulated arms, thanks to its light preload and 15° contact angle. Its compact design fits well in tight spaces without sacrificing performance.

For medical imaging devices, 71907 CDGB/HCP4A Bearing’s chrome steel rings and ceramic balls offer durability and consistent rotation. The open seal design allows for easy lubrication, extending its service life in critical applications.

Automotive vs Aerospace: Applications of 71907 CDGB/HCP4A Bearing
In automotive systems, 71907 CDGB/HCP4A Bearing handles high-speed loads in gearboxes and electric motors. Its metric sizing and universal matching make it versatile for various vehicle designs.

Aerospace applications benefit from 71907 CDGB/HCP4A Bearing’s lightweight construction and ability to withstand extreme temperatures. The ceramic balls and phenolic cage reduce weight while maintaining reliability in flight systems.

Q&A

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