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Super Precision Angular Contact Ball Bearings 71907 ACE/HCP4A

Super Precision Angular Contact Ball Bearings 71907 ACE/HCP4A

The 71907 ACE/HCP4A is a super precision angular contact ball bearing with a 35mm bore and 55mm outer diameter, crafted from chrome steel for durability. Its compact 10mm width makes it suitable for tight spaces, while the ceramic balls ensure smooth operation.

With a 25° contact angle, it handles both radial and axial loads efficiently, supporting up to 1638 lbf dynamically. It spins at speeds up to 60,000 RPM, ideal for high-performance applications.

The open design allows easy lubrication, and the phenolic cage reduces friction for quieter running. It operates in temperatures from -30°C to 110°C, making it versatile for various environments.

This bearing meets P4 (ABEC-7) tolerance standards, ensuring high precision. Perfect for machine tools or high-speed spindles where accuracy and reliability are key. Weighing just 0.067kg, it’s lightweight yet robust.

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Product Parameters

  • Part Number 71907 ACE/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 35 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 55 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 10 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 19
  • Contact Angle 25°
  • 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 1638 lbf
  • Static Radial Load 990 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 60000 rpm
  • Weight 0.067 kg
  • Price（$） 255.744
Super Precision Angular Contact Ball Bearings 71907 ACE/HCP4A dimension drawing
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Features

Why Choose 71907 ACE/HCP4A Bearing for Precision Tasks?

71907 ACE/HCP4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its ceramic balls and chrome steel rings ensure low friction and high-speed performance up to 60,000 rpm.

The phenolic cage in 71907 ACE/HCP4A Bearing reduces weight and maintains stability under dynamic radial loads of 1638 lbf.
With ABEC-7 tolerance class, it delivers consistent accuracy for demanding applications.

71907 ACE/HCP4A Bearing operates smoothly in temperatures from -30° to 110°C, ensuring reliability in varied conditions.
Its open design allows easy lubrication, enhancing longevity and reducing maintenance needs.

Application

Common Applications of 71907 ACE/HCP4A Bearing
71907 ACE/HCP4A Bearing is widely used in high-speed machine tools, where its precision and ceramic balls reduce friction for smoother operation. The 25° contact angle makes it ideal for handling combined radial and axial loads in spindle applications.

In robotics, 71907 ACE/HCP4A Bearing ensures accurate movement in articulated arms, thanks to its P4 tolerance class. The phenolic cage also helps dampen vibrations during high-speed rotations.

For dental drills and other medical devices, 71907 ACE/HCP4A Bearing’s ceramic balls provide quiet, reliable performance. Its compact 35mm bore fits neatly into small, high-precision equipment.

Automotive turbochargers benefit from 71907 ACE/HCP4A Bearing’s ability to withstand extreme speeds up to 60,000 rpm. The chrome steel rings offer durability under continuous high-temperature conditions.

In 3D printers, 71907 ACE/HCP4A Bearing’s low-friction design ensures precise layer alignment. The open seal allows for easy lubrication maintenance in prolonged printing sessions.

Q&A

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