7012 CD/P4ATBTA
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7012 CD/P4ATBTA Bearing Product Overview & Core Advantages
The 7012 CD/P4ATBTA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This triplex back-to-back (TBT) matched set delivers superior performance by combining three bearings to handle significant combined loads (radial and axial) simultaneously. Manufactured to the exacting P4A tolerance class, it ensures minimal runout and vibration, making it ideal for high-speed spindles and other high-precision machinery. Its extra light preload (Class A) minimizes friction at high speeds while maintaining system stiffness.
7012 CD/P4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a 15° contact angle, optimized for high-speed operation and moderate axial loads. |
| P4A | Specifies the high-precision tolerance class, exceeding ABEC 7 standards for superior running accuracy. |
| TBT | Denotes the bearing is supplied as part of a Triplex Back-to-Back matched set of three bearings for maximum rigidity. |
| A | Signifies an Extra Light Preload (Class A), reducing heat generation and enabling higher limiting speeds. |
7012 CD/P4ATBTA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The triplex back-to-back arrangement creates an exceptionally rigid bearing system capable of withstanding heavy combined radial and axial loads from multiple directions, making it ideal for applications with complex load paths.
- Optimized High-Speed Performance: The 15° contact angle and phenolic cage work in tandem to reduce centrifugal forces and friction, supporting a high limiting speed of 34,000 rpm. The phenolic cage offers excellent strength-to-weight ratio and operates smoothly at high velocities.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control on the bore, outside diameter, and width, this bearing ensures precise shaft positioning and minimal vibration for superior operational accuracy.
- Premium Material Construction: Made from chrome steel for both rings and balls, the bearing provides high fatigue life and durability under demanding operating conditions.
7012 CD/P4ATBTA Bearing Typical Application Areas
The 7012 CD/P4ATBTA is engineered for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring ultra-fine surface finishes.
- High-Frequency Motors: Spindles for PCB drilling and other high-RPM electric motors.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments, and other critical rotating assemblies.
