7202 ACDGC/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7202 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7202 ACDGC/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and moderate preload. Operating under the P4A tolerance class, it delivers exceptional dimensional accuracy and running precision. Its 25° contact angle is optimized to support significant combined loads—handling both radial and axial forces efficiently. The phenolic cage and universal matchable (SU) designation make it ideal for high-speed spindle arrangements and other precision machinery where rigidity and accuracy are paramount.
7202 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7202 | Basic bearing series, 15mm bore, 35mm OD |
| AC | Angular Contact design with 25° contact angle |
| DGC | Moderate preload designation (Class C) |
| P4A | High precision tolerance class exceeding ABEC 7 |
7202 ACDGC/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0) ensuring minimal runout and vibration.
Optimized Load Capacity: The 25° contact angle provides excellent combined load handling, with dynamic radial load rating of 1609 lbf and static rating of 720 lbf.
High-Speed Performance: Phenolic resin cage reduces friction and weight, enabling limiting speeds up to 95,000 rpm while maintaining dimensional stability.
Preload Optimization: Moderate preload (Class C) ensures high rigidity and precise rotational accuracy without excessive friction or heat generation.
Universal Matching Capability: SU designation allows precise bearing arrangement in sets of up to 4 bearings for complex spindle configurations.
7202 ACDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision lathes
- Precision Grinding Spindles - Applications requiring minimal runout and vibration
- High-Speed Motors - Electric motor spindles and servo drives
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and instrumentation
- Robotics - Precision joints and articulation points
