7002 CD/HCP4ADBA
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
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7002 CD/HCP4ADBA Bearing Product Overview & Core Advantages
The 7002 CD/HCP4ADBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and high-speed capability. This duplex back-to-back (DB) matched set delivers superior high rigidity and can accommodate combined radial and axial loads. Manufactured to P4A tolerance class, it features a phenolic cage and ceramic balls, making it ideal for high-precision, high-reliability machinery where performance is critical.
7002 CD/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| 7002 | Basic bearing series, indicating a 15mm bore and 32mm outside diameter. |
| CD | Specifies a duplex back-to-back (DB) matched pair arrangement, providing high moment stiffness. |
| HC | Indicates the use of hybrid ceramic balls (Silicon Nitride), offering reduced weight, lower friction, and higher speed capability. |
| P4A | Denotes an ultra-precision tolerance class (superior to ABEC 7), ensuring extremely tight dimensional and running accuracy. |
| DB | Confirms the back-to-back mounting of the two bearings in the set. |
| A | Specifies an extra light preload for minimal friction and optimal high-speed performance. |
7002 CD/HCP4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and accommodates combined loads from any direction.
High-Speed Performance: The combination of a lightweight phenolic cage and hybrid ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 95,000 rpm. The 15° contact angle is optimized for high-speed applications requiring high axial stiffness.
Precision & Longevity: Manufactured to P4A tolerance class with a chrome steel rings, this bearing ensures smooth, quiet, and vibration-free operation. The open seal type allows for customized lubrication schemes to maximize performance in specific operating conditions.
7002 CD/HCP4ADBA Bearing Typical Application Areas
This high-precision bearing set is engineered for the most demanding applications, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Instrumentation: In medical devices, optical scanners, and coordinate measuring machines.
- High-Frequency Motors & Spindles: Where extreme rotational accuracy and speed are required.
- Aerospace & Defense Systems: In gyroscopes, navigation systems, and other critical components.
