7213 CD/P4ADFB
7200 & 7300 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
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7213 CD/P4ADFB Bearing Product Overview & Core Advantages
The 7213 CD/P4ADFB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high rigidity. This matched set features a Face-to-Face (DF) duplex arrangement and is manufactured to P4A tolerance class, making it ideal for high-speed spindles and precision machinery. Its primary advantage lies in its ability to handle combined radial and axial loads simultaneously with high running accuracy, providing superior performance in demanding operational environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7213 | Basic bearing series; 65 mm bore, 120 mm OD, 46 mm width |
| C | 15° contact angle design |
| D | Duplex bearing arrangement |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DF | Face-to-Face mounting arrangement |
| B | Light preload classification |
7213 CD/P4ADFB Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The duplex DF arrangement provides exceptional stiffness and minimizes axial play, ensuring precise shaft positioning and reduced deflection under load. Manufactured to P4A tolerance standards, this bearing delivers superior running accuracy.
Optimized Load Capacity: With a 15° contact angle and duplex configuration, this bearing efficiently handles combined radial and axial loads in both directions. The radial dynamic load rating of 24,300 lbf and static load rating of 23,850 lbf ensure reliable performance under heavy operating conditions.
High-Speed Capability: The phenolic cage and optimized internal geometry enable stable operation at high rotational speeds, with a limiting speed of 32,500 rpm. The light preload (Class B) minimizes friction and heat generation during high-speed operation.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, this bearing offers excellent wear resistance and durability. The phenolic cage provides good dimensional stability and operates effectively within the specified temperature range of -30°C to 110°C.
7213 CD/P4ADFB Bearing Typical Application Areas
The 7213 CD/P4ADFB is specifically designed for high-precision applications including:
- Machine Tool Spindles - High-speed milling, grinding, and turning centers
- Precision Robotics - Joint and arm positioning systems
- High-Frequency Spindles - PCB drilling and precision machining
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Systems - Guidance mechanisms and control surfaces
