7012 CE/P4ADGA
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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7012 CE/P4ADGA Bearing Product Overview & Core Advantages
The 7012 CE/P4ADGA is a precision angular contact ball bearing manufactured to P4A tolerance class for exceptional dimensional and running accuracy. Designed with a 15° contact angle and extra light preload (Class A), this bearing is engineered for applications requiring high-speed operation and superior rotational precision. Its universal matchable (SU) design allows two bearings to be mounted in any combination (face-to-face or back-to-back) to achieve optimal stiffness and handle combined loads, including radial and axial loads in both directions. The open design, when properly lubricated, facilitates very high limiting speeds, making it ideal for demanding, high-performance machinery.
7012 CE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| CE | Indicates a universal matchable (SU) bearing designed with a specific internal clearance and tolerance for precise pairing. |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy, exceeding ABEC 7 standards. |
| DGA | Specifies the extra light preload (Class A) applied to the bearing, which minimizes friction and heat generation for optimal high-speed performance. |
7012 CE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and universal matchable pairing enable the bearing arrangement to provide high system rigidity and reliably support significant combined radial and axial loads.
- High-Speed Performance: The combination of a lightweight phenolic cage, 15° contact angle, and extra light preload collectively contributes to a very high limiting speed of 34,000 rpm, reducing centrifugal forces and operational temperatures.
- Precision Engineering: Manufactured to P4A tolerance class with tight bore, outside diameter, and width tolerances, ensuring predictable performance, minimal runout, and smooth operation in precision spindles.
- Durable Construction: Components made from chrome steel offer high hardness and fatigue resistance, ensuring a long service life under demanding conditions.
7012 CE/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- High-Speed Motors
- Dental and Medical Handpiece Drives
