7210 CD/P4ADT
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7210 CD/P4ADT Bearing Product Overview & Core Advantages
The 7210 CD/P4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This duplex tandem (DT) arrangement provides superior axial load capacity in one direction, making it ideal for high-precision spindles and other machinery requiring high rigidity and minimal deflection. Manufactured to P4A tolerance class, it ensures extremely tight dimensional and running accuracy, while its phenolic cage contributes to excellent high-speed performance and smooth operation.
7210 CD/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| C | Specifies a 15° contact angle, optimized for high-speed applications with predominant axial loads. |
| D | Indicates the bearing is part of a duplex pair with a specific preload and arrangement. |
| P4A | Denotes an ultra-high precision tolerance class with enhanced running accuracy requirements. |
| DT | Signifies a Duplex Tandem arrangement, where two bearings are mounted together to increase axial load capacity in a single direction. |
7210 CD/P4ADT Bearing Structural Features & Performance Benefits
Optimized for High Rigidity and Precision: The duplex tandem arrangement creates a highly rigid bearing system, significantly reducing axial play and shaft displacement under load. This is critical for applications requiring extreme positional accuracy.
Superior High-Speed Capability: The lightweight phenolic resin cage ensures excellent dimensional stability and low friction at high rotational speeds, contributing to the bearing's high limiting speed of 41,000 rpm. The 15° contact angle is engineered for optimal performance in high-speed spindle applications.
Enhanced Load Capacity: As a matched set, the 7210 CD/P4ADT is designed to handle significant axial loads in one direction. The high-grade chrome steel construction of rings and balls provides a high dynamic and static load rating for long service life.
Pre-Configured for Immediate Use: This bearing comes as a pre-lubricated, pre-loaded, and matched set, simplifying installation and ensuring consistent, high-precision performance right from the start.
7210 CD/P4ADT Bearing Typical Application Areas
The 7210 CD/P4ADT is engineered for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines, high-frequency motor spindles.
- Robotics: High-accuracy robotic arms and joints.
- Medical Equipment: Dental handpieces and surgical drill spindles.
- Aerospace & Defense: Gyroscopes, radar systems, and other precision instruments.
