7216 CD/P4ADFB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7216 CD/P4ADFB Bearing Product Overview & Core Advantages
The 7216 CD/P4ADFB is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex bearing features a Face-to-Face (DF) matched arrangement and a Light preload (Class B), making it ideal for machine tool spindles and other high-precision machinery. Its configuration provides superior stiffness and excellent running accuracy, enabling it to handle combined loads effectively while maintaining high performance at elevated speeds.
7216 CD/P4ADFB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7216 | Basic bearing series with 80 mm bore, 140 mm OD, and 52 mm width |
| C | 15° contact angle design |
| D | Duplex bearing arrangement |
| P4A | High-precision tolerance class with enhanced running accuracy |
| DF | Face-to-Face mounting arrangement |
| B | Light preload classification |
7216 CD/P4ADFB Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The duplex DF arrangement and P4A tolerance class deliver exceptional system stiffness and running accuracy, crucial for applications requiring minimal deflection under load.
Optimized Load Capacity: With a 15° contact angle and duplex configuration, this bearing efficiently handles combined radial and axial loads in both directions. The dynamic load rating of 31,500 lbf and static load rating of 33,750 lbf ensure reliable performance under demanding conditions.
High-Speed Capability: The phenolic cage and optimized internal geometry contribute to a limiting speed of 28,000 rpm, making it suitable for high-speed applications.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, this bearing offers excellent wear resistance and durability. The open design allows for customized lubrication schemes to match specific application requirements.
7216 CD/P4ADFB Bearing Typical Application Areas
The 7216 CD/P4ADFB is specifically engineered for high-performance applications including:
- Machine Tool Spindles - for milling, grinding, and turning centers
- Precision Industrial Machinery - requiring high rigidity and accuracy
- High-Speed Machining Centers - where combined load capacity and precision are critical
- Robotic Systems - for precision motion control applications
- Medical Equipment - in high-speed imaging and surgical devices
