7007 ACD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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7007 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7007 ACD/P4ADGB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This universal matchable (SU) bearing features a 25° contact angle and light preload (Class B), enabling it to handle combined radial and axial loads simultaneously. Manufactured to P4A tolerance class, it delivers superior running accuracy and is optimized for high-speed operation up to 56,000 rpm. Its compact design and phenolic cage contribute to excellent performance in precision machinery.
7007 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series with 35mm bore, 62mm OD, 28mm width |
| ACD | 25° contact angle design for optimal load distribution |
| P4A | High precision tolerance class exceeding ABEC 7 standards |
| DGB | Universal matchable (SU) arrangement for paired mounting |
7007 ACD/P4ADGB Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal runout and vibration, critical for high-speed applications. The phenolic cage provides excellent dimensional stability and reduced friction at high speeds.
Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing achieves a dynamic load rating of 5445 lbf and static load rating of 4050 lbf, making it suitable for demanding combined load conditions.
High-Speed Performance: The phenolic cage and precision-ground chrome steel components enable reliable operation at limiting speeds of 56,000 rpm, while the light preload (Class B) minimizes heat generation and maintains stability.
Universal Matching Capability: As a universal matchable (SU) bearing, it can be paired with another identical bearing in various configurations (back-to-back, face-to-face, or tandem) without selective matching, simplifying installation and maintenance.
7007 ACD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Electric spindle motors and high-frequency drives
- Precision Instruments: Measuring equipment and laboratory instruments
- Aerospace Components: Gyroscopes and navigation systems
- Medical Equipment: Dental handpieces and surgical tools
