7000 CE/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7000 CE/P4A Bearing Product Overview & Core Advantages
The 7000 CE/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined loads, it efficiently handles both radial and significant axial loads in one direction. Its P4 (ABEC-7) tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and precision machinery. The bearing is preloaded and pre-lubricated, delivering immediate high-stiffness performance and reliable operation right from installation.
7000 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed operation and moderate axial loads. |
| E | Reinforced Design | Increased load capacity through optimized internal geometry and more/bigger balls. |
| P4 | P4 (ABEC-7) Tolerance Class | Guarantees ultra-precise dimensions and runout for high-precision, high-speed applications. |
| A | 30° Contact Angle | Provides higher axial load capacity. |
7000 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4 tolerance class with a phenolic resin cage, this bearing offers exceptional dimensional stability and low vibration, crucial for high-speed and high-precision applications. The available preload eliminates internal clearance, resulting in superior system stiffness and accurate shaft positioning.
- Optimized Load Capacity: The angular contact design with a 15° contact angle is engineered to support significant combined (radial and axial) loads simultaneously. The reinforced "E" design, featuring a larger ball diameter and an 11-ball complement, significantly boosts the dynamic and static load ratings.
- High-Speed Capability: The lightweight and robust phenolic cage is ideal for high-speed operation, reducing centrifugal forces and ensuring stable performance. This contributes to the high limiting speed of 140,000 rpm.
- Ready-to-Install: The bearing comes pre-lubricated, ensuring immediate and smooth operation upon installation and simplifying the assembly process.
7000 CE/P4A Bearing Typical Application Areas
The 7000 CE/P4A is specified for demanding applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instruments: Measuring devices, optical scanners.
- High-Frequency Motors: Spindles for PCB drilling and routing.
- Robotics: High-accuracy joints and arm assemblies.
- Medical Equipment: Dental handpieces, small laboratory centrifuges.
