7013 CD/P4ADBA
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
7013 CD/P4ADBA Bearing Product Overview & Core Advantages
The 7013 CD/P4ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This matched set bearing is configured in a Back-to-Back (DB) arrangement, providing high resistance to moment loads and excellent operational stability. Manufactured to the stringent P4A tolerance class, it is engineered to handle combined radial and axial loads simultaneously, making it an ideal choice for high-precision, high-speed spindles and other critical machinery components where high rigidity and precise shaft positioning are paramount.
7013 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a duplex bearing set with a Back-to-Back (DB) mounting arrangement. This configuration provides high moment stiffness. |
| P4A | Denotes a high-precision tolerance class with enhanced running accuracy and dimensional stability, superior to standard ABEC-7 (P4) specifications. |
| DB | Specifies the Back-to-Back matched arrangement of the two bearings in the set. |
| A | Signifies an Extra Light preload applied to the matched set, minimizing friction and heat generation for optimal high-speed performance. |
7013 CD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity and Stability: The duplex Back-to-Back (DB) design creates a wide, rigid support system that effectively resists moment loads and tilting, ensuring precise shaft guidance and minimal deflection under heavy combined loads.
- Superior Precision: Manufactured to P4A tolerance class, this bearing guarantees extremely tight dimensional and running accuracy, which is critical for applications requiring minimal runout and vibration.
- Optimized High-Speed Capability: The combination of an Extra Light preload (A) and a lightweight, durable phenolic resin cage reduces centrifugal forces and friction, enabling stable operation at the high limiting speed of 24,000 rpm.
- Robust Load Capacity: With a 15° contact angle and high-quality chrome steel construction, the bearing is engineered to sustain significant dynamic and static loads, offering reliable performance under demanding conditions.
7013 CD/P4ADBA Bearing Typical Application Areas
The 7013 CD/P4ADBA is ideally suited for high-performance machinery where precision and speed are critical. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines, high-frequency motor spindles.
- Robotics: High-accuracy rotary joints and arms.
- Medical Equipment: Dental handpieces, high-speed centrifuges.
- Aerospace & Defense: Gyroscopes, radar systems, and other precision instruments.
