7204 ACDGC/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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7204 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7204 ACDGC/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Operating under P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle and moderate preload (Class C) provide optimal stiffness for handling combined radial and axial loads. Manufactured with chrome steel rings and balls and a phenolic cage, it offers reliable performance in demanding environments with a temperature range of -30°C to 110°C. This bearing is universally matchable (SU), allowing precise axial clearance control when mounted with other bearings.
7204 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 7204 | Standard bearing size designation (20mm bore, 47mm OD, 14mm width) | Compact dimensions for space-constrained applications |
| AC | Angular Contact design | Optimized for combined radial and axial loads |
| DGC | Universal Matchable bearing with specific internal clearance | Enables precise mounting arrangements and preload control |
| P4A | High precision tolerance class | Superior running accuracy and dimensional stability |
7204 ACDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The 25° contact angle and moderate preload configuration provide excellent stiffness, enabling the bearing to handle significant combined loads while maintaining precision. With a dynamic load rating of 2565 lbf and static load rating of 1260 lbf, it offers reliable performance under demanding conditions.
High-Speed Performance: The phenolic cage ensures stable operation at high rotational speeds, supporting a limiting speed of 100,500 rpm. This makes the bearing suitable for high-speed applications requiring minimal vibration and heat generation.
Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional controls (bore tolerance: -0.004mm to 0, OD tolerance: -0.004mm to 0), this bearing guarantees consistent performance and extended service life in precision machinery.
Universal Matching Capability: As a universally matchable (SU) bearing, it can be precisely paired with other bearings to create optimized bearing arrangements with controlled preload and clearance.
7204 ACDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- Precision Instrumentation: Measuring equipment and optical devices
- High-Speed Motors: Servo motors and spindle drives
- Medical Equipment: Dental handpieces and surgical tools
- Aerospace Systems: Guidance systems and precision actuators
- Robotics: Joint mechanisms and precision positioning systems
