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Super Precision Angular Contact Ball Bearings 71909 CD/HCP4A

Super Precision Angular Contact Ball Bearings 71909 CD/HCP4A

The 71909 CD/HCP4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, designed for high-speed applications. Its 15° contact angle efficiently handles both radial and axial loads, making it versatile for various setups.

Made from chrome steel rings and ceramic balls, it offers smooth operation and reduced friction. The phenolic cage ensures durability, while the P4 tolerance class guarantees precise performance.

With a maximum speed of 36,000 RPM, it’s ideal for machine tools or spindle drives. The open design allows easy lubrication, extending its lifespan.

Weighing just 0.12kg, it’s lightweight yet robust, suitable for demanding environments. Compliant with standard temperature ranges from -30°C to 110°C, it’s a reliable choice for precision engineering.

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Product Parameters

  • Part Number 71909 CD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2925 lbf
  • Static Radial Load 2138 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 36000 rpm
  • Weight 0.12 kg
  • Price（$） 324.882
Super Precision Angular Contact Ball Bearings 71909 CD/HCP4A dimension drawing
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Features

Performance Features of 71909 CD/HCP4A Bearing

71909 CD/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, enhancing its precision and durability.
The 15° contact angle ensures efficient handling of combined radial and axial loads.

Its phenolic cage maintains ball alignment, reducing friction and wear during high-speed operation.
With a maximum speed of 36,000 rpm, it delivers reliable performance in demanding applications.

The P4 tolerance class guarantees high precision, making it suitable for critical tasks.
Its dynamic radial load capacity of 2925 lbf ensures long-lasting performance under stress.

71909 CD/HCP4A Bearing operates smoothly within a temperature range of -30° to 110°C.
The lubricated design reduces maintenance needs while ensuring consistent performance.

Application

Practical Applications of 71909 CD/HCP4A Bearing
71909 CD/HCP4A Bearing is commonly used in high-speed machine spindles, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4 tolerance ensures precise rotation, making it ideal for CNC machining centres.

In automotive applications, 71909 CD/HCP4A Bearing supports wheel hubs and transmission systems, handling both radial and angular loads efficiently. Its 15° contact angle provides stability during cornering and acceleration.

For robotics, 71909 CD/HCP4A Bearing’s lightweight design and high-speed capability suit articulated arms and precision positioning systems. The open seal allows for custom lubrication to match specific operating conditions.

Medical imaging devices benefit from 71909 CD/HCP4A Bearing’s smooth operation and low vibration, critical for clear scan results. The chrome steel rings offer durability in sterilisation environments.

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