7000 ACEGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7000 ACEGB/P4A Bearing Product Overview & Core Advantages
The 7000 ACEGB/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 accuracy and dimensional stability. Its 25° contact angle is optimized to support significant combined loads, handling both radial and axial loads simultaneously. The light preload (Class B) minimizes deflection under operational forces, making it ideal for applications demanding high rigidity and precise shaft positioning. The phenolic cage and universal matching capability further enhance its performance in high-speed spindle arrangements.
7000 ACEGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7000 AC | Angular Contact bearing series with 25° contact angle |
| E | Optimized internal design for enhanced load capacity |
| GB | Light preload (Class B) for reduced deflection |
| P4A | High precision tolerance class for superior running accuracy |
7000 ACEGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal dimensional variation and exceptional running accuracy, critical for high-precision machinery. The phenolic cage provides excellent dimensional stability at high speeds while reducing friction and weight.
Optimized Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing efficiently handles combined radial and axial loads. The light preload eliminates internal clearance, enhancing system rigidity and positioning accuracy without compromising high-speed capability.
High-Speed Performance: The phenolic cage construction and precision-ground chrome steel components enable operation at limiting speeds up to 185,000 rpm. The universal matching capability (SU designation) allows for precise bearing arrangements in high-speed spindle configurations.
Material Excellence: Manufactured from high-grade chrome steel for both rings and balls, ensuring durability, wear resistance, and consistent performance across the operating temperature range of -30°C to 110°C.
7000 ACEGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines
- Precision Instruments: Measuring equipment, optical instruments, and laboratory apparatus
- High-Speed Motors: Spindle motors, high-frequency motors, and precision drive systems
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Guidance systems, instrumentation, and auxiliary power units
