7204 CDGC/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 CDGC/P4A Bearing Product Overview & Core Advantages
The 7204 CDGC/P4A is a single-row angular contact ball bearing designed for applications requiring high precision and superior performance under combined loads. Engineered to a P4A tolerance class, this bearing delivers exceptional dimensional accuracy and running precision. Its 15° contact angle provides optimal capacity for handling both radial and axial loads simultaneously, while the universal matching (SU) capability allows for flexible arrangement in duplex sets. With a moderate preload (Class C) and phenolic cage, it offers excellent high-speed capability and operational stability in demanding environments.
7204 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7204 | Basic bearing series: Light series with 20mm bore, 47mm OD |
| CD | 15° contact angle design |
| GC | Moderate preload (Class C) |
| P4A | High precision tolerance class (superior to ABEC 7) |
7204 CDGC/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for high-precision applications.
Optimized Load Capacity: The 15° contact angle provides balanced performance for combined radial and axial loads, with dynamic load rating of 2678 lbf and static load rating of 1316 lbf.
High-Speed Performance: Phenolic cage construction and optimized internal geometry enable exceptional limiting speeds up to 100,500 rpm while maintaining stability.
Universal Matching Capability: Designed as Universal Matchable (SU) bearings, allowing flexible arrangement in duplex sets (back-to-back, face-to-face, or tandem) to meet specific application requirements.
Material Excellence: Chrome steel rings and balls provide superior wear resistance and fatigue life, suitable for operating temperatures from -30°C to 110°C.
7204 CDGC/P4A Bearing Typical Application Areas
- Machine tool spindles and high-precision machining centers
- High-speed spindles for grinding and milling applications
- Precision instrumentation and measuring equipment
- Medical equipment requiring high rotational accuracy
- Robotic joints and automation systems
- Aerospace components and navigation systems
- Semiconductor manufacturing equipment
