7012 ACE/HCP4AH1DT
Hybrid Ceramic Super Precision 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
Product Overview and Core Advantages
The 7012 ACE/HCP4AH1DT is a precision angular contact ball bearing designed for demanding applications requiring exceptional performance. This duplex tandem (DT) arrangement consists of two matched bearings, preloaded to deliver superior high rigidity and axial stiffness. Its construction with a phenolic cage and ceramic balls enables outstanding high-speed performance, making it ideal for machine tool spindles and other high-precision machinery where accuracy and reliability are paramount under combined loads.
7012 ACE/HCP4AH1DT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACE | 25° Contact Angle, Standard internal clearance | Optimized for high axial load capacity and high-speed operation. |
| HC | Hybrid Ceramic (Ceramic balls with steel rings) | Reduced friction, higher limiting speed, and longer service life. |
| P4A | High Precision Tolerance Class | Ensures exceptional running accuracy and system stability. |
| H1 | Preload Level (Light) | Provides optimal rigidity for high-speed applications without excessive heat generation. |
| DT | Duplex Tandem Arrangement | Two bearings mounted in tandem to maximize axial load capacity in one direction. |
Structural Features and Performance Benefits
- High Rigidity and Load Capacity: The duplex tandem arrangement with applied preload creates an exceptionally stiff bearing system, capable of handling significant combined loads (radial and axial) simultaneously. The 25° contact angle is specifically engineered for high axial load support.
- Superior High-Speed Performance: The lightweight phenolic cage and ceramic balls (Hybrid construction) significantly reduce centrifugal forces and friction, enabling a high limiting speed of 33,000 rpm. This makes it a premier high-speed bearing.
- Precision and Longevity: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration. The open design is supplied lubricated, ready for integration into a centralized lubrication system for consistent performance across its operating temperature range.
7012 ACE/HCP4AH1DT Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for applications where maximum axial stiffness and rotational accuracy are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace Systems: Gyroscopes, navigation systems, and auxiliary power units.
- High-Frequency Motors and Spindles: Where extreme rotational speeds are required.
