7205 ACDGB/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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7205 ACDGB/P4A Bearing Product Overview & Core Advantages
The 7205 ACDGB/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle provides excellent capacity for combined loads, effectively handling both radial and axial forces in one direction. With a phenolic cage and universal matching capability (SU), it enables high-speed operation and simplified mounting in preloaded arrangements. This bearing comes prelubricated and is ideal for applications demanding high rigidity and precise positioning.
7205 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7205 | Basic bearing series with 25mm bore diameter |
| AC | Angular Contact design with 25° contact angle |
| DGB | Universal Matchable bearing for duplex arrangements |
| P4A | High precision tolerance class with enhanced running accuracy |
7205 ACDGB/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with tight dimensional controls (bore: -0.004mm to 0, OD: -0.004mm to 0) ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 25° contact angle provides superior combined load handling with dynamic radial load rating of 2925 lbf and static radial load rating of 1564 lbf.
High-Speed Performance: Phenolic cage construction enables operation at limiting speeds up to 100,500 rpm, reducing friction and heat generation.
Universal Matching Capability: Designed as Universal Matchable (SU) bearings, allowing flexible mounting in back-to-back, face-to-face, or tandem arrangements to achieve required preload and stiffness.
Premium Material Quality: Chrome steel rings and balls provide excellent wear resistance and durability under demanding operating conditions.
7205 ACDGB/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 - Spindle motors and servo drives
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and actuator mechanisms
- Robotics - Joint assemblies and precision positioning systems
