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Super Precision Angular Contact Ball Bearings 7004 ACE/HCP4A

Super Precision Angular Contact Ball Bearings 7004 ACE/HCP4A

The 7004 ACE/HCP4A is a super precision angular contact ball bearing with a 20mm bore and 42mm outer diameter, crafted from chrome steel for durability. It features a 25° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 1609 lbf and reaches speeds of 88,000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures stability and reduces friction during use.

The open design allows for easy lubrication, while the P4 tolerance class guarantees precise performance. Ideal for machine tools or precision equipment where accuracy is crucial.

Weighing just 0.056kg, it’s lightweight yet robust. It operates in temperatures from -30°C to 110°C and is interchangeable with SKF bearings for convenient replacements.

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Product Parameters

  • Part Number 7004 ACE/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.005mm to 0
  • Outer Dia 42 mm
  • Outer Dia Tolerance -0.006mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 12
  • 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 1609 lbf
  • Static Radial Load 731 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 88000 rpm
  • Weight 0.056 kg
  • Price（$） 9.675
Super Precision Angular Contact Ball Bearings 7004 ACE/HCP4A dimension drawing
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Features

Performance Features of 7004 ACE/HCP4A Bearing

7004 ACE/HCP4A Bearing is designed with a 25° contact angle, optimising it for angular contact loads.

Its chrome steel rings and ceramic balls enhance durability and reduce friction during high-speed operation.

With a dynamic radial load capacity of 1609 lbf, it handles demanding applications efficiently.

The phenolic cage ensures smooth performance, even at speeds up to 88,000 rpm.

Application

Common Applications of 7004 ACE/HCP4A Bearing
In machine tools, 7004 ACE/HCP4A Bearing excels in high-speed spindles, where its ceramic balls reduce friction and heat buildup. The P4 tolerance ensures precise positioning, crucial for fine machining work.

Where Is 7004 ACE/HCP4A Bearing Used?
You’ll often spot 7004 ACE/HCP4A Bearing in robotics, particularly in articulated arms requiring smooth, low-vibration rotation. Its angular contact design handles combined radial and axial loads effortlessly.

Optimized for Performance: 7004 ACE/HCP4A Bearing
For small electric motors, 7004 ACE/HCP4A Bearing’s phenolic cage dampens vibrations, extending component life. The 88,000 rpm rating makes it ideal for compact, high-RPM applications.

Automotive vs Aerospace: Applications of 7004 ACE/HCP4A Bearing
In automotive turbochargers, 7004 ACE/HCP4A Bearing withstands rapid acceleration, while in aerospace gyroscopes, its precision maintains stability. Both benefit from the ceramic balls’ lightweight properties.

Perfect Fit for Automation: 7004 ACE/HCP4A Bearing
7004 ACE/HCP4A Bearing keeps 3D printer guide rails running smoothly, thanks to its consistent preload and minimal play. The open design simplifies relubrication in continuous-operation settings.

Q&A

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