7012 CDGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7012 CDGB/P4A Bearing Product Overview & Core Advantages
The 7012 CDGB/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and is universally matchable (SU), allowing for precise preload control when mounted in pairs or sets. Its 15° contact angle is optimized to handle combined loads, efficiently supporting significant radial loads and axial loads in one direction. The light preload (Class B) minimizes deflection under operational stresses, making it an ideal choice for high-speed spindles and other demanding machinery where precision and reliability are paramount.
7012 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7012 | Standard bearing series number, indicating a 60 mm bore, 95 mm OD, and 18 mm width. |
| C | Designates a 15° contact angle. |
| D | Indicates a light preload (Class B). |
| GB | Signifies the bearing is universally matchable (SU) for set arrangements. |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy. |
7012 CDGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single row design, combined with the 15° contact angle and P4A tolerance class, provides high rigidity and exceptional running accuracy, essential for minimizing deflection in precision applications.
- Superior Load Capacity: Engineered to handle combined loads effectively, with a dynamic load rating of 9068 lbf and a static load rating of 7762 lbf.
- Optimized High-Speed Performance: The phenolic cage and optimized internal geometry contribute to a high limiting speed of 34,000 rpm, making it suitable for high-speed operations.
- Universal Matchability: The Universal Matchable (SU) feature allows for flexible mounting in matched sets (typically 3 bearings), enabling precise preload adjustment for optimal system stiffness and performance.
- Durable Material Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability and wear resistance under demanding conditions.
7012 CDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace Control Systems
