S7030 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7030 CD/HCP4A Bearing Product Overview & Core Advantages
The S7030 CD/HCP4A is a high-precision, single-row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Its defining feature is the 15° contact angle and P4 (ABEC-7) tolerance class, ensuring ultra-precise rotational characteristics. The bearing is preloaded and comes sealed and lubricated from the factory, making it a complete, ready-to-install unit that delivers high rigidity and is capable of accommodating combined loads, primarily thrust loads in one direction with radial loads. Its compact design and superior running accuracy make it ideal for high-reliability, high-speed machinery.
S7030 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| S7030 | Standard bearing series designation with 150mm bore. | Defines the core bearing dimensions. |
| CD | Indicates a specific 15° contact angle and a preload class. | Provides high rigidity and precise shaft positioning. |
| HC | Signifies the use of Hybrid Ceramic components (Ceramic balls). | Enables higher limiting speeds, reduced friction, and longer service life. |
| P4 | Denotes the P4 tolerance class (ABEC-7). | Guarantees ultra-high precision for applications with minimal runout and vibration. |
S7030 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperatures, and provides electrical insulation. This directly contributes to the high limiting speed of 7,000 rpm and extended bearing life.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable ball guidance at high speeds, offering excellent dimensional stability and low friction.
- Precision & Preload: Manufactured to P4 tolerance and supplied with a preload, this bearing delivers superior running accuracy and high rigidity, minimizing deflection under load.
- Sealed & Lubricated Design: The integrated seals protect against contamination and retain lubricant, making the bearing a maintenance-free solution for its operational life within the specified temperature range.
- High Load Capacity: With a dynamic load rating of 38,700 lbf and a static load rating of 42,750 lbf, it is capable of handling significant combined loads.
S7030 CD/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Aerospace & Defense Instrumentation
- Semiconductor Manufacturing Equipment
