7207 CD/P4ADT
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7207 CD/P4ADT Bearing Product Overview & Core Advantages
The 7207 CD/P4ADT is a precision duplex tandem angular contact ball bearing designed for applications requiring exceptional rigidity and axial load capacity. This P4A tolerance class bearing features a matched set of two bearings arranged in tandem (DT) to primarily handle heavy unidirectional axial loads. Its 15° contact angle and phenolic cage contribute to outstanding high-speed performance, making it ideal for machine tool spindles and other high-precision, high-reliability rotational systems.
7207 CD/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7207 | Basic bearing series with 35mm bore, 72mm OD |
| C | 15° contact angle design |
| D | Duplex arrangement |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DT | Tandem arrangement for maximum axial load capacity |
7207 CD/P4ADT Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Load Capacity: The duplex tandem arrangement provides exceptional stiffness and is optimized for heavy unidirectional axial loads. With a dynamic load rating of 11,700 lbf and static load rating of 9,675 lbf, this bearing configuration delivers reliable performance under demanding conditions.
High-Speed Capability: The phenolic resin cage and optimized internal geometry enable operation at limiting speeds up to 41,000 rpm. The 15° contact angle provides an ideal balance between radial and axial load capacity while maintaining excellent high-speed characteristics.
Precision Engineering: Manufactured to P4A tolerance class standards with tight dimensional control (bore tolerance: -0.004mm to 0), this bearing ensures minimal runout and vibration for precision applications.
Preloaded Configuration: The bearings are supplied as a matched set with preload applied, eliminating the need for complex adjustment during installation and ensuring immediate optimal performance.
7207 CD/P4ADT Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- High-Speed Machining Centers: CNC equipment requiring exceptional rigidity
- Precision Rotary Tables: Indexing and positioning systems
- Aerospace Components: Gyroscopes, navigation systems, and flight control mechanisms
- Medical Equipment: High-speed dental handpieces and surgical tools
- Robotics: Precision joints and articulation points
