7000 ACEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7000 ACEGA/P4A Bearing Product Overview & Core Advantages
The 7000 ACEGA/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy. Manufactured to P4A tolerance class, this bearing delivers superior running precision and dimensional stability. Its 25° contact angle is optimized to handle significant axial loads in one direction while supporting radial loads, making it ideal for applications demanding high rigidity and precise shaft positioning. The bearing comes pre-lubricated and features a phenolic cage for quiet operation at high speeds, with a temperature range of -30°C to 110°C.
7000 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| AC | Angular Contact Design | Optimized for combined radial and axial loads |
| EGA | Universal Matchable (SU) with Extra Light Preload | Enables precise bearing arrangement with minimal preload |
| P4A | High Precision Tolerance Class | Exceptional running accuracy and dimensional stability |
7000 ACEGA/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: The P4A tolerance class ensures minimal dimensional variation and superior running accuracy, critical for precision machinery. The bore diameter tolerance of -0.004mm to 0 and outside diameter tolerance of -0.004mm to 0 guarantee precise fit and optimal performance.
Optimized Load Capacity: With a 25° contact angle and 11 high-quality chrome steel balls, this bearing achieves excellent load distribution. The radial dynamic load rating of 644 lbf and static load rating of 256 lbf provide reliable performance under demanding conditions.
High-Speed Performance: The phenolic cage offers excellent strength-to-weight ratio and smooth operation at the limiting speed of 185,000 rpm. The cage design minimizes friction and heat generation, contributing to extended bearing life.
Universal Matching Capability: Designed as Universal Matchable (SU) with extra light preload (Class A), these bearings can be arranged in pairs without additional adjustment, simplifying installation and ensuring optimal preload conditions.
7000 ACEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- Precision Instrumentation: Measuring equipment and optical instruments
- High-Speed Motors: Servo motors and spindle motors requiring precise rotation
- Medical Equipment: Dental handpieces and laboratory instrumentation
- Aerospace Components: Guidance systems and precision actuators
- Robotics: High-accuracy robotic joints and positioning systems
