S7007 CD/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7007 CD/P4ADBA Bearing Product Overview & Core Advantages
The S7007 CD/P4ADBA is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stability under combined radial and axial loads. Manufactured to P4A tolerance class, it delivers ultra-precise running characteristics, making it ideal for high-speed spindles and other demanding machinery where high rigidity and minimal runout are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7007 | Basic bearing series and size designation (35mm bore, 62mm OD). |
| C | 15° contact angle. |
| D | Duplex bearing set. |
| P4A | High precision tolerance class (exceeds ABEC 7). |
| DB | Back-to-Back arrangement for high moment rigidity. |
| A | Extra light preload for optimal performance in high-speed applications. |
S7007 CD/P4ADBA Bearing Structural Features & Performance Benefits
Optimized Duplex Design: The back-to-back (DB) matched arrangement creates a wide effective spread, significantly increasing the bearing's resistance to moment loads and enhancing overall system stiffness.
Superior Load Capacity: With a 15° contact angle and duplex configuration, this bearing efficiently handles combined radial and axial loads from both directions simultaneously.
High-Speed Capability: The lightweight phenolic resin cage minimizes centrifugal forces, while the precision-ground chrome steel components and optimized internal geometry enable a high limiting speed of 41,000 rpm.
Precision Engineering: Manufactured to P4A tolerance class with extremely tight dimensional tolerances on the bore, outside diameter, and width, ensuring exceptional running accuracy and consistent performance.
Sealed & Lubricated: The bearing comes sealed and pre-lubricated with grease, protecting against contamination and providing reliable operation within a temperature range of -30°C to 110°C.
S7007 CD/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines.
- Precision Equipment: Measuring instruments, optical scanners, and coordinate measuring machines (CMM).
- High-Speed Rotating Machinery: Dental handpieces, small precision motors, and turbochargers.
- Industrial Automation: Robotic arm joints and high-precision positioning systems.
