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Super Precision Angular Contact Ball Bearings 71905 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71905 CDGA/HCP4A

The 71905 CDGA/HCP4A is a super precision angular contact ball bearing with a 25mm bore and 42mm outer diameter, crafted from chrome steel for durability. It features a 15° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 1521 lbf and spins at speeds up to 100,500 RPM, making it suitable for high-performance applications. Its open design and phenolic cage ensure reliable performance under demanding conditions.

With an extra-light preload (Class A), it offers precise movement and minimal friction. The bearing works in temperatures from -30°C to 110°C and comes pre-lubricated for immediate use.

Ideal for precision machinery like spindles or CNC tools, it can be paired in back-to-back, face-to-face, or tandem arrangements. Weighing just 0.039kg, it’s lightweight yet robust for its size. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71905 CDGA/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 Extra light / Class A
  • 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 CDGA/HCP4A dimension drawing
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Features

Performance Features of 71905 CDGA/HCP4A Bearing

71905 CDGA/HCP4A Bearing is designed with a 15° contact angle, providing excellent radial and axial load capacity.
Its chrome steel rings and ceramic balls ensure smooth operation at high speeds, up to 100,500 rpm.

The phenolic cage maintains ball alignment, reducing friction and wear for extended service life.
With a dynamic radial load of 1521 lbf, it handles demanding applications with ease.

71905 CDGA/HCP4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its precision P4A tolerance class ensures consistent performance in high-speed environments.

Application

Industrial Uses of 71905 CDGA/HCP4A Bearing
71905 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 precise handling of combined radial and axial loads in demanding industrial environments.

Where Is 71905 CDGA/HCP4A Bearing Used?
In automotive applications, 71905 CDGA/HCP4A Bearing supports high-performance gearboxes and electric motor shafts, thanks to its P4A tolerance class.
Its lightweight design and high-speed capability make it ideal for reducing energy consumption in modern vehicles.

Perfect Fit for Automation: 71905 CDGA/HCP4A Bearing
For robotic arms and CNC machinery, 71905 CDGA/HCP4A Bearing provides smooth motion control with minimal vibration.
The open design allows for easy lubrication, extending service life in continuous operation scenarios.

Medical vs Industrial: Where 71905 CDGA/HCP4A Bearing Excels
In medical imaging devices, 71905 CDGA/HCP4A Bearing offers quiet operation and reliability due to its ceramic ball construction.
Industrial applications benefit from its ability to handle high rotational speeds while maintaining precision in harsh conditions.

What Makes 71905 CDGA/HCP4A Bearing a Preferred Choice?
71905 CDGA/HCP4A Bearing is often chosen for aerospace components, where its lightweight and high-speed performance are critical.
The universal matching feature allows flexible arrangement options, making it versatile for complex machinery setups.

Q&A

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