7030 CD/P4ADGA
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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7030 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7030 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, it delivers superior running precision. Its universal matchable (SU) design allows for flexible mounting in either back-to-back (DB) or face-to-face (DF) arrangements without preload loss, simplifying installation. The bearing is pre-lubricated and features an open design, optimized for high-speed operation up to 11,000 rpm, making it an ideal solution for machine tool spindles and other high-performance machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7030 | Basic bearing series and size designation (150mm bore, 225mm OD, 70mm width). |
| CD | Contact angle of 15° and universal matchable (SU) design. |
| P4A | High precision tolerance class, exceeding ABEC 7 standards. |
| DGA | Indicates an extra light preload (Class A) for minimal friction and high-speed capability. |
7030 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design with a 15° contact angle enables the bearing to support significant combined loads (radial and axial loads simultaneously). The universal matching capability ensures high system rigidity when mounted in pairs.
High-Speed Performance: The combination of an open seal type, a lightweight phenolic cage, and extra light preload minimizes friction and heat generation, enabling a high limiting speed of 11,000 rpm.
Precision and Durability: Manufactured from chrome steel for both rings and balls, and built to P4A tolerance class, this bearing guarantees exceptional dimensional stability, long service life, and consistent performance under demanding conditions.
7030 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
