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Super Precision Angular Contact Ball Bearings 7004 ACDGA/HCP4A

Super Precision Angular Contact Ball Bearings 7004 ACDGA/HCP4A

The 7004 ACDGA/HCP4A is a super precision angular contact ball bearing with a 20mm bore and 42mm outer diameter, designed for high-speed applications. It features a 25° contact angle and is made from durable chrome steel with ceramic balls for smooth operation.

This bearing handles radial loads up to 1872 lbf and can spin at remarkable speeds up to 103,000 RPM. Its phenolic cage ensures stability, while the extra light preload (Class A) reduces friction for efficient performance.

The open design allows for easy lubrication, and it operates well in temperatures from -30°C to 110°C. Weighing just 0.06kg, it’s lightweight yet robust for its size.

Ideal for precision machinery like spindles or CNC tools where high-speed and accuracy are crucial. It can be used in matched sets of three, arranged back-to-back, face-to-face, or tandem for versatile applications.

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Product Parameters

  • Part Number 7004 ACDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 42 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 12
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1872 lbf
  • Static Radial Load 934 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 103000 rpm
  • Weight 0.06 kg
  • Price（$） 77.58
Super Precision Angular Contact Ball Bearings 7004 ACDGA/HCP4A dimension drawing
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Features

Performance Features of 7004 ACDGA/HCP4A Bearing

7004 ACDGA/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The ceramic balls reduce friction, allowing speeds up to 103,000 rpm while maintaining precision.

Its phenolic cage ensures smooth operation and minimises heat generation under high-speed conditions.
The chrome steel rings provide durability, supporting dynamic radial loads up to 1872 lbf.

With an extra light preload (Class A), 7004 ACDGA/HCP4A Bearing delivers consistent performance in precision machinery.
The open design allows for easy lubrication, extending the bearing’s service life.

7004 ACDGA/HCP4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its universal matching capability makes it versatile for various mounting configurations.

Application

Industrial Uses of 7004 ACDGA/HCP4A Bearing
7004 ACDGA/HCP4A Bearing is commonly used in high-speed machine spindles, where its ceramic balls reduce friction and heat buildup. The open design allows for efficient lubrication, ensuring long service life in demanding conditions.

Where Is 7004 ACDGA/HCP4A Bearing Used?
You’ll often find 7004 ACDGA/HCP4A Bearing in precision equipment like CNC machines, where its P4A tolerance ensures accurate performance. The angular contact design handles both radial and axial loads smoothly.

Built for Heavy-Duty Use: 7004 ACDGA/HCP4A Bearing
7004 ACDGA/HCP4A Bearing excels in robotics, supporting joints and arms with its lightweight phenolic cage. Its extra-light preload makes it ideal for applications requiring minimal friction.

Automotive vs Aerospace: Applications of 7004 ACDGA/HCP4A Bearing
In automotive systems, 7004 ACDGA/HCP4A Bearing aids in electric motor shafts, while aerospace uses it in gyroscopes for its stability. The ceramic balls provide consistent performance across temperature ranges.

Key Fields for 7004 ACDGA/HCP4A Bearing
7004 ACDGA/HCP4A Bearing is a go-to for medical imaging devices, where quiet operation is essential. Its chrome steel rings and ceramic balls ensure reliability in sensitive environments.

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