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Super Precision Angular Contact Ball Bearings 71909 CD/P4A

Super Precision Angular Contact Ball Bearings 71909 CD/P4A

The 71909 CD/P4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 2925 lbf and spins smoothly at high speeds up to 32,000 RPM.

With a 15° contact angle and open design, it offers excellent performance for angular loads. The phenolic cage ensures quiet operation and long service life.

This bearing is ideal for precision applications like machine tool spindles or high-speed motors. Its P4 tolerance class guarantees reliable accuracy for demanding tasks.

Weighing just 0.13kg, it’s lightweight yet robust. Suitable for temperatures from -30°C to 110°C, it’s a versatile choice for industrial use.

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Product Parameters

  • Part Number 71909 CD/P4A
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2925 lbf
  • Static Radial Load 2138 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 32000 rpm
  • Weight 0.13 kg
  • Price（$） 324.765
Super Precision Angular Contact Ball Bearings 71909 CD/P4A dimension drawing
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Features

Why Choose 71909 CD/P4A Bearing for Precision Tasks?

71909 CD/P4A Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel construction ensures durability and consistent performance under dynamic radial loads up to 2925 lbf.

The phenolic cage maintains ball alignment, reducing friction and noise during high-speed operation.
With a maximum speed of 32,000 rpm, it delivers reliable efficiency in demanding conditions.

71909 CD/P4A Bearing operates smoothly within a temperature range of -30° to 110°C.
Its P4 tolerance class guarantees precision, making it suitable for critical applications.

Application

Industrial Uses of 71909 CD/P4A Bearing
71909 CD/P4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The phenolic cage helps reduce friction, making it suitable for continuous operation.

Where Is 71909 CD/P4A Bearing Used?
In automotive applications, 71909 CD/P4A Bearing supports components like wheel hubs and transmissions, thanks to its ability to handle both radial and axial loads. The P4 tolerance class ensures reliable performance in demanding conditions.

Perfect Fit for Automation: 71909 CD/P4A Bearing
For robotic arms and automated systems, 71909 CD/P4A Bearing offers smooth movement with minimal vibration. Its chrome steel construction provides durability in high-cycle environments.

Medical vs Industrial: Where 71909 CD/P4A Bearing Excels
In medical imaging devices, 71909 CD/P4A Bearing delivers quiet and precise motion, while in industrial settings, it handles heavy loads with ease. The open design allows for easy lubrication and maintenance.

Key Fields for 71909 CD/P4A Bearing
71909 CD/P4A Bearing is ideal for aerospace applications, where its high-speed capability and precision are crucial. The 15° contact angle ensures optimal load distribution in compact spaces.

Q&A

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