7007 CD/P4ADBD
7000 Series Super Precision Angular Contact Ball Bearings
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7007 CD/P4ADBD Bearing Product Overview & Core Advantages
The 7007 CD/P4ADBD is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This duplex back-to-back (DB) arrangement consists of two matched bearings preloaded to Heavy / Class D specifications, delivering superior high rigidity and stability under complex loading conditions. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and other precision machinery where uncompromising performance is critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series and size designation (35mm bore, 62mm OD) |
| C | 15° contact angle |
| D | Heavy preload (Class D) |
| P4A | High precision tolerance class with enhanced running accuracy |
| DB | Duplex Back-to-Back matched arrangement |
7007 CD/P4ADBD Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Stability: The duplex back-to-back configuration with heavy preload creates an exceptionally rigid bearing system that minimizes deflection under combined loads, ensuring precise shaft positioning and reduced vibration.
Superior Load Capacity: With a 15° contact angle and optimized internal geometry, this bearing effectively handles combined radial and axial loads simultaneously. The dynamic load rating of 5738 lbf and static load rating of 4275 lbf demonstrate its robust performance capabilities.
High-Speed Performance: The phenolic cage material provides excellent strength-to-weight ratio and smooth operation at the limiting speed of 56,000 rpm, making it suitable for high-speed applications.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore and OD tolerance: -0.004mm to 0), this bearing delivers exceptional running accuracy and consistent performance in precision machinery.
7007 CD/P4ADBD Bearing Typical Application Areas
- Machine Tool Spindles - High-precision milling, grinding, and turning centers
- High-Speed Machining Centers - Where rigidity and accuracy are paramount
- Precision Rotary Tables - Indexing and positioning systems
- Industrial Robotics - High-accuracy joint and arm applications
- Medical Equipment - High-speed dental handpieces and surgical tools
- Aerospace Components - Guidance systems and precision actuators
