7004 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7004 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7004 CE/HCP4ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features a 15° contact angle and extra light preload (Class A), making it ideal for high-speed operation up to 63,000 rpm. Its ceramic ball and phenolic cage construction delivers superior performance in high-velocity and temperature-sensitive environments, while its P4A tolerance class ensures exceptional running accuracy and system rigidity.
7004 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 7004 | Standard bore diameter (20mm) & dimension series | Standardized bearing dimensions for easy integration |
| CE | Ceramic balls (hybrid construction) | Enhanced high-speed performance and reduced thermal expansion |
| HC | Phenolic resin cage | Excellent high-speed stability and reduced friction |
| P4A | Super precision tolerance class | Exceptional running accuracy and system high rigidity |
| DGA | Universal matchable pair (SU designation) | Simplified mounting and optimized preload configuration |
7004 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, enabling higher limiting speeds while maintaining dimensional stability across the operating temperature range (-30°C to 110°C).
Precision Ground Components: Manufactured to P4A tolerance class with tight dimensional tolerances (bore: -0.004mm to 0, OD: -0.004mm to 0), ensuring minimal runout and vibration for precision bearing applications.
Optimized Load Capacity: The 15° contact angle and extra light preload configuration provide excellent performance under combined loads, with a dynamic load rating of 2722 lbf and static load rating of 1508 lbf.
High-Speed Phenolic Cage: The phenolic resin cage offers superior strength-to-weight ratio, reducing inertial forces and enabling stable operation at high rotational speeds.
7004 CE/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Industrial spindle motors and servo drives
- Precision Instruments: Measuring equipment and optical devices
- Aerospace Systems: Gyroscopes and navigation equipment
- Medical Equipment: Dental handpieces and surgical tools
- Robotics: High-accuracy robotic joints and actuators
