S7012 CDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7012 CDGB/P4A Bearing Product Overview & Core Advantages
The S7012 CDGB/P4A is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Operating under a P4A tolerance class, it guarantees minimal dimensional runout and vibration. Its 15° contact angle and Universal Matchable (SU) designation make it ideal for preloaded arrangements, providing superior rigidity and the ability to handle combined radial and axial loads simultaneously. This bearing is pre-lubricated and sealed for long-term, maintenance-free operation.
S7012 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7012 | Super-precision bearing series with 60mm bore and 95mm OD. |
| C | 15° nominal contact angle. |
| DG | Universal Matchable (SU) bearing for duplex pairs. |
| B | Light preload (Class B). |
| P4A | High-precision tolerance class, superior to ABEC 7. |
S7012 CDGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and Light preload (Class B) enable the bearing to support significant combined loads, providing a stiff and stable shaft support system.
- Superior High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and allowing for a high limiting speed of 31,000 rpm. The optimized internal geometry further enhances high-speed capability.
- Exceptional Precision: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Maintenance-Free Operation: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is designed for long service life without re-lubrication within its specified temperature range of -30°C to 110°C.
S7012 CDGB/P4A Bearing Typical Application Areas
The S7012 CDGB/P4A is ideally suited for high-performance machinery where precision and speed are paramount. Key applications include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Gearboxes
- High-Frequency Motors and Spindles
- Medical and Dental Equipment
- Aerospace Actuation Systems
