7012 CE/P4ADBA
7000 Series Super Precision Angular Contact Ball Bearings
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7012 CE/P4ADBA Bearing Product Overview & Core Advantages
The 7012 CE/P4ADBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) arrangement bearing set is preloaded to Extra Light (Class A) specifications, ensuring minimal axial and radial play for superior system stability. Engineered to a P4A tolerance class, it delivers outstanding running accuracy, making it ideal for high-speed spindles and precision machinery where high rigidity and precise shaft positioning are critical.
7012 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7012 | Basic bearing series and size designation (60mm bore, 95mm OD, 36mm width). |
| C | 15° contact angle, optimized for carrying combined radial and axial loads. |
| E | Optimized internal design for enhanced load capacity and performance. |
| P4A | High precision tolerance class, providing extremely tight dimensional and running accuracy. |
| DB | Duplex Back-to-Back mounting arrangement, providing high moment rigidity. |
| A | Specific preload level: Extra Light (Class A). |
7012 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & System Stability: The duplex back-to-back (DB) arrangement and Class A preload create a highly rigid bearing system that effectively resists moment loads and minimizes shaft deflection under operation, crucial for maintaining precision.
Superior Precision & Running Accuracy: Manufactured to P4A tolerance class standards, this bearing ensures minimal runout and vibration, contributing to superior performance in high-speed and high-precision applications.
Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, enabling stable operation at the high limiting speed of 34,000 rpm. The 15° contact angle provides an excellent balance between axial load capacity and speed capability.
High Load Capacity: With a dynamic load rating of 6210 lbf and a static load rating of 5738 lbf, the bearing is capable of handling significant combined loads (radial and axial) simultaneously.
7012 CE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring extreme accuracy and rigidity.
- Precision Rotary Systems: Indexing tables, rotary encoders, and high-precision actuators.
- High-Frequency Motors & Spindles: Applications where minimal vibration and runout are paramount.
- Medical & Laboratory Equipment: Centrifuges and other precision instruments demanding quiet, smooth operation.
