S7000 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7000 CD/P4A Bearing Product Overview & Core Advantages
The S7000 CD/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and exceptional rotational accuracy. Designed to accommodate combined loads, it efficiently handles both radial loads and substantial 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 comes preloaded and lubricated for immediate installation and long-term, maintenance-free operation.
S7000 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7000 | Basic series designation for a metric, single-row angular contact ball bearing. |
| CD | Indicates a specific contact angle of 15° and a preload level, providing high rigidity and precise shaft positioning. |
| P4 | Denotes the tolerance class P4 (ABEC-7), signifying very high dimensional and running accuracy. |
| A | Signifies that the bearing is sealed on both sides, protecting against contamination and retaining lubricant. |
S7000 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and factory-applied preload eliminate internal clearance, resulting in a very stiff bearing system that minimizes deflection under load and ensures high running accuracy.
- Superior Load Capacity: The optimized internal geometry allows it to support significant combined radial and axial loads simultaneously, a hallmark of angular contact ball bearings.
- High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground chrome steel components contribute to a high limiting speed of 75,000 rpm.
- Maintenance-Free Operation: The integral seals effectively shield the bearing from contaminants and retain the factory-applied high-performance lubricant, enabling long service life without re-lubrication within the specified temperature range of -30°C to 110°C.
S7000 CD/P4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors
- Medical and Dental Handpieces
- Aerospace Instrumentation