S7007 ACE/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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S7007 ACE/P4ADBB Bearing Product Overview & Core Advantages
The S7007 ACE/P4ADBB is a precision duplex angular contact ball bearing designed for exceptional performance in demanding applications. This back-to-back (DB) matched set delivers superior high rigidity and can accommodate combined loads (radial and axial loads from both directions) simultaneously. Manufactured to P4A tolerance class with a light preload (Class B), it ensures smooth operation, high running accuracy, and excellent positional stability, making it ideal for high-speed spindles and other precision machinery.
S7007 ACE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7007 | Basic bearing series designation |
| ACE | 25° contact angle, phenolic cage, optimized internal design |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DBB | Duplex Back-to-Back arrangement for high moment rigidity |
S7007 ACE/P4ADBB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The back-to-back duplex arrangement creates a wide effective spread, significantly increasing the bearing's resistance to moment loads and providing exceptional high rigidity. The 25° contact angle is optimized to handle substantial combined loads.
High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the precision-ground chrome steel balls and raceways ensure smooth operation, contributing to the high limiting speed of 41,000 rpm.
Precision & Stability: Manufactured to P4A tolerance class with a light preload, this bearing set eliminates internal clearance, minimizes axial and radial runout, and ensures high rotational accuracy and thermal stability.
Sealed & Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is ready for immediate installation, offering long-term, maintenance-free operation within the specified temperature range.
S7007 ACE/P4ADBB Bearing Typical Application Areas
The S7007 ACE/P4ADBB is ideally suited for high-performance applications requiring high speed, high precision, and high rigidity, including:
- Machine Tool Spindles (milling, grinding, turning)
- High-Frequency Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Rotary Tables
