S7007 ACD/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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S7007 ACD/P4ADBA Bearing Product Overview & Core Advantages
The S7007 ACD/P4ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rigidity and rotational accuracy. This matched back-to-back arrangement (DB) with an extra light preload (Class A) provides superior stability and minimizes axial and radial runout. Engineered to handle combined loads (radial and axial loads simultaneously) with a 25° contact angle, it is ideal for high-speed spindles and other precision machinery requiring high rigidity and reliable performance under demanding conditions.
S7007 ACD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | Angular Contact, Duplex (Matched Set) | Indicates a pre-matched pair of bearings for simplified installation and optimal performance. |
| P4A | High Precision Tolerance Class | Exceeds ABEC 7/ISO P4 standards, ensuring extremely low runout and vibration for superior rotational accuracy. |
| DB | Back-to-Back Arrangement | Provides high moment rigidity and excellent operational stability. |
S7007 ACD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) design with an extra light preload creates a highly rigid bearing system that effectively resists moment loads and minimizes deflection, crucial for maintaining precision in machine tool spindles.
- Superior Load Capacity: The 25° contact angle and optimized internal geometry enable the bearing to handle significant combined radial and axial loads simultaneously.
- High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, contributing to a high limiting speed of 41,000 rpm. The grease lubrication is suitable for this high-speed range.
- Precision Engineering: Manufactured to a P4A tolerance class with tight dimensional control on the bore diameter (35 mm), outside diameter (62 mm), and width (28 mm), guaranteeing consistent and predictable performance.
S7007 ACD/P4ADBA Bearing Typical Application Areas
The S7007 ACD/P4ADBA is ideally suited for high-precision, high-speed applications where rigidity and accuracy are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy robotic arms and joints.
- Medical Equipment: Dental handpieces and high-speed surgical drills.
- Aerospace Systems: Gyroscopes and other critical navigation instruments.
