7007 CE/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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7007 CE/P4A Bearing Product Overview & Core Advantages
The 7007 CE/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Operating under the stringent P4 (ABEC-7) tolerance class, this bearing is designed to handle significant combined loads—simultaneous radial and axial loads—in one direction. Its optimized internal geometry, featuring a 15° contact angle, ensures high rigidity and operational accuracy, making it an ideal choice for high-speed spindles and precision machinery where reliability is paramount.
7007 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| C | 15° Contact Angle | Optimized for handling axial loads and providing high rigidity. |
| E | Reinforced Design | Features a larger number of larger-sized balls, increasing load capacity. |
| P4 | High Precision Tolerance (ABEC-7) | Ensures extremely tight dimensional and running accuracy for smooth, precise operation. |
| A | Preload Level | Indicates a specific light preload for reduced axial play and enhanced system stiffness. |
7007 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The reinforced "E" design incorporates a greater number (17 balls) and larger ball diameter (7.144 mm), significantly boosting the dynamic load rating (2565 lbf) and static load rating (1474 lbf). This makes the bearing exceptionally resistant to deformation under heavy combined loads.
- High-Speed Capability: The lightweight phenolic resin cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed (50,000 rpm). The standard lubrication further supports stable operation at high rotational speeds.
- Precision Performance: Manufactured to P4 tolerance class, this bearing guarantees minimal runout and vibration, which is critical for maintaining accuracy in high-precision applications.
- Material Quality: Constructed from high-grade chrome steel for both rings and balls, ensuring excellent durability, wear resistance, and a long operational lifespan.
7007 CE/P4A Bearing Typical Application Areas
The 7007 CE/P4A is ideally suited for high-performance machinery and systems requiring precision and speed, including:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Gearboxes
- High-Frequency Motors and Spindles
- Medical and Dental Equipment
- Robotic Arms and Precision Actuators
