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Super Precision Angular Contact Ball Bearings 71905 CDGB/HCP4A

Super Precision Angular Contact Ball Bearings 71905 CDGB/HCP4A

The 71905 CDGB/HCP4A is a super precision angular contact ball bearing with a 25mm bore and 42mm outer diameter, crafted from chrome steel for durability. Its compact 9mm width makes it suitable for tight spaces, while the ceramic balls ensure smooth operation.

With a 15° contact angle, it handles both radial and axial loads efficiently, supporting up to 1521 lbf dynamically. It spins at impressive speeds up to 100,500 RPM, ideal for high-performance applications.

The phenolic cage reduces friction and noise, enhancing longevity. It comes pre-lubricated and operates in temperatures from -30°C to 110°C.

Perfect for precision machinery like spindles or dental equipment, this bearing is interchangeable with SKF models. Its lightweight design (0.039kg) and P4A tolerance class ensure reliable, high-accuracy performance.

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Product Parameters

  • Part Number 71905 CDGB/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 25 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 42 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 18
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • 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 1521 lbf
  • Static Radial Load 900 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 100500 rpm
  • Weight 0.039 kg
Super Precision Angular Contact Ball Bearings 71905 CDGB/HCP4A dimension drawing
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Features

Performance Features of 71905 CDGB/HCP4A Bearing

71905 CDGB/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 15° contact angle provides excellent angular contact performance, suitable for various load directions.
The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 100,500 rpm, it excels in high-speed applications while maintaining stability.
The P4A tolerance class guarantees superior precision, making it ideal for demanding tasks.

Application

Common Applications of 71905 CDGB/HCP4A Bearing
71905 CDGB/HCP4A Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it ideal for applications demanding smooth operation.

In robotics, 71905 CDGB/HCP4A Bearing supports articulated arms, providing stability during repetitive movements. Its lightweight phenolic cage enhances performance in dynamic environments.

For medical imaging devices, 71905 CDGB/HCP4A Bearing offers reliable performance due to its P4A tolerance class. The chrome steel rings and ceramic balls ensure long-lasting use in critical applications.

Where Is 71905 CDGB/HCP4A Bearing Used?
71905 CDGB/HCP4A Bearing is commonly found in CNC machining centres, where high-speed precision is essential. Its light preload helps maintain accuracy during heavy cutting operations.

In aerospace applications, 71905 CDGB/HCP4A Bearing is used in gyroscopes and navigation systems. The ceramic balls provide low friction, crucial for sensitive equipment.

Built for Heavy-Duty Use: 71905 CDGB/HCP4A Bearing
71905 CDGB/HCP4A Bearing excels in industrial pumps, handling both radial and axial loads with ease. The open design allows for efficient lubrication, extending service life.

In electric motors, 71905 CDGB/HCP4A Bearing ensures smooth rotation at high speeds. Its phenolic cage resists heat, making it suitable for continuous operation.

Automotive vs Aerospace: Applications of 71905 CDGB/HCP4A Bearing
In automotive systems, 71905 CDGB/HCP4A Bearing is used in turbochargers, where high-speed performance is critical. The ceramic balls reduce wear under extreme conditions.

For aerospace, 71905 CDGB/HCP4A Bearing supports flight control systems, offering precision and reliability. Its lightweight design is ideal for reducing overall aircraft weight.

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