7204 CDGB/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7204 CDGB/P4A Bearing Product Overview & Core Advantages
The 7204 CDGB/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring superior rotational accuracy and rigidity. Operating under P4A tolerance class, this bearing delivers exceptional dimensional stability and running accuracy. Its 15° contact angle and Universal Matchable (SU) design enable optimal performance under combined radial and axial loads. Preloaded with Light / Class B preload, it ensures minimal deflection and vibration, making it ideal for high-speed spindle systems and precision machinery where uncompromising accuracy is critical.
7204 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7204 | Basic bearing series: Light series, 20mm bore diameter |
| C | 15° contact angle design |
| D | Light preload (Class B) |
| GB | Universal matching bearing (can be paired in any combination) |
| P4A | High-precision tolerance class (superior to ABEC 7) |
7204 CDGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and consistent performance.
High-Speed Capability: Features a phenolic resin cage that reduces friction and enables operation at limiting speeds up to 100,500 rpm, making it suitable for high-speed machining applications.
Superior Load Capacity: With a radial dynamic load rating of 2678 lbf and radial static load rating of 1316 lbf, this bearing effectively handles combined loads while maintaining precision.
Optimized Material Selection: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and durability under demanding operating conditions.
Thermal Stability: Operates reliably within a temperature range of -30°C to 110°C, maintaining performance across various environmental conditions.
7204 CDGB/P4A Bearing Typical Application Areas
Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines requiring exceptional rotational accuracy
Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus where minimal vibration is critical
High-Speed Automation: Robotics, semiconductor manufacturing equipment, and automated assembly systems
Aerospace Components: Gyroscopes, navigation systems, and other precision aerospace applications
Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems requiring reliable high-speed operation
