7030 CD/P4ATBTA
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7030 CD/P4ATBTA Bearing Product Overview & Core Advantages
The 7030 CD/P4ATBTA is a precision angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. This triplex back-to-back (TBT) matched set delivers superior performance in handling combined loads (radial and axial) simultaneously. Manufactured to P4A tolerance class, it ensures minimal runout and outstanding rotational precision. The extra light preload (Class A) minimizes deflection under operational stresses, making it ideal for high-speed, high-rigidity applications where positioning accuracy is critical.
7030 CD/P4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| CD | 15° contact angle and optimized internal geometry for high-speed operation |
| P4A | High-precision tolerance class with enhanced dimensional and running accuracy |
| TB | Back-to-back mounting arrangement for improved moment load capacity |
| T | Triplex set consisting of three matched bearings |
| A | Extra light preload classification for minimal friction and optimal high-speed performance |
7030 CD/P4ATBTA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The triplex back-to-back configuration creates an exceptionally rigid bearing system capable of withstanding heavy combined loads and significant moment loads. With a radial dynamic load rating of 83,475 lbf and static load rating of 128,250 lbf, this bearing set delivers reliable performance under demanding conditions.
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, this bearing ensures precise shaft positioning and minimal vibration. The 15° contact angle provides optimal balance between axial and radial load capacity.
High-Speed Capability: Featuring a phenolic cage and optimized internal geometry, the bearing achieves a limiting speed of 11,000 rpm. The extra light preload reduces friction and heat generation, enabling sustained high-speed operation.
Premium Materials: Constructed from chrome steel for both rings and balls, the bearing offers excellent wear resistance and durability. The phenolic cage provides strength while maintaining low weight for high-speed applications.
7030 CD/P4ATBTA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers requiring exceptional rigidity and accuracy
- High-Speed Spindles: Grinding machines, milling spindles, and other high-RPM applications
- Precision Instrumentation: Measuring equipment and analytical instruments demanding minimal runout
- Robotics: Precision joints and positioning systems requiring high rigidity and accuracy
- Aerospace Components: Guidance systems and flight control mechanisms
