S7030 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7030 CDGA/P4A Bearing Product Overview & Core Advantages
The S7030 CDGA/P4A is a high-precision, single-row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and high-speed performance. Its defining characteristic is the 15° contact angle, which enables it to efficiently support combined loads—significant radial loads alongside substantial axial loads in one direction. Manufactured to the stringent P4A tolerance class, this bearing guarantees superior running accuracy and rotational precision. The combination of a phenolic resin cage and factory-applied grease lubrication makes it an ideal, ready-to-install solution for high-speed spindles and other precision machinery where high rigidity and operational reliability are paramount.
S7030 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7030 | Basic bearing designation, indicating the bearing size (150mm bore, 225mm OD). |
| C | Denotes a 15° contact angle, optimized for high-speed operation. |
| DG | Indicates the bearing is Universal Matchable (SU), allowing for precise preload setting when mounted in pairs or sets. |
| A | Signifies an Extra light preload (Class A), minimizing friction and heat generation at high speeds. |
| P4A | Specifies the tolerance class, representing very high precision levels for both dimensional and running accuracy. |
S7030 CDGA/P4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The lightweight and robust phenolic resin cage is engineered for stability and low centrifugal forces, directly contributing to the high limiting speed of 11,000 rpm. The 15° contact angle further reduces heat generation at high rotational speeds.
- Superior Precision and Rigidity: Conformance to the P4A tolerance class ensures minimal runout and vibration. The single-row design, when properly mounted in a matched arrangement, provides high system rigidity and precise shaft positioning.
- Optimized Load Capacity: The design effectively handles combined radial and axial loads. With a dynamic load rating of 38,700 lbf and a static load rating of 42,750 lbf, it offers reliable performance under significant stress.
- Universal Matching Design (SU): The DG suffix means these bearings are manufactured to universal matching standards. This allows any number of bearings to be mounted together without selective assembly, simplifying installation and achieving the desired preload for maximum system rigidity.
S7030 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines and other high-precision automated equipment.
- High-Frequency Motors: Where high rotational speeds and accuracy are required.
- Industrial Pumps and Compressors: For applications demanding high-speed and reliable operation.
