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Super Precision Angular Contact Ball Bearings 71909 ACE/HCP4A

Super Precision Angular Contact Ball Bearings 71909 ACE/HCP4A

The 71909 ACE/HCP4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, designed for high-speed applications. Its 25° contact angle efficiently handles combined radial and axial loads up to 2194 lbf.

Made from chrome steel with ceramic balls, it offers smooth operation at speeds up to 47,000 RPM. The phenolic cage reduces friction and wear, while the open design allows easy lubrication.

This P4-class bearing is interchangeable with SKF models, making it a reliable choice for precision machinery. Ideal for CNC spindles or high-performance motors where accuracy and speed are crucial.

Weighing just 0.12kg, it’s lightweight yet durable, with a temperature range of -30°C to 110°C. Matched sets are available for applications requiring precise preload.

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Product Parameters

  • Part Number 71909 ACE/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 21
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2194 lbf
  • Static Radial Load 1440 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 47000 rpm
  • Weight 0.12 kg
  • Price（$） 324.792
Super Precision Angular Contact Ball Bearings 71909 ACE/HCP4A dimension drawing
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Features

Performance Features of 71909 ACE/HCP4A Bearing

71909 ACE/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 25° contact angle allows for efficient handling of combined radial and axial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 47,000 rpm, it excels in high-speed applications.

71909 ACE/HCP4A Bearing operates smoothly within a temperature range of -30° to 110°C.
Its P4 tolerance class guarantees exceptional accuracy for demanding tasks.

The open design simplifies lubrication, ensuring consistent performance over time.
This bearing is ideal for applications requiring both precision and reliability.

Application

Common Applications of 71909 ACE/HCP4A Bearing
71909 ACE/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, 71909 ACE/HCP4A Bearing supports articulated arms, providing stability during rapid movements. Its phenolic cage offers lightweight durability, perfect for repetitive tasks.

For aerospace components, 71909 ACE/HCP4A Bearing handles both radial and axial loads efficiently. The P4 tolerance class guarantees consistent performance in critical flight systems.

Medical imaging devices benefit from 71909 ACE/HCP4A Bearing’s low vibration and high-speed capabilities. The chrome steel rings ensure long-lasting reliability in sensitive environments.

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