S7008 ACD/P4ADGB
Sealed Super Precision Angular Contact Ball Bearings
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S7008 ACD/P4ADGB Bearing Product Overview & Core Advantages
The S7008 ACD/P4ADGB is a super-precision double row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. Its universal matchable (SU) design allows for flexible mounting arrangements in preloaded sets, providing outstanding stability under combined radial and axial loads. Manufactured to P4A tolerance class and featuring a phenolic cage, this bearing is optimized for high-speed operation and reliable performance in demanding industrial environments.
S7008 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7008 | Double row angular contact ball bearing series with 40mm bore |
| ACD | 25° contact angle design optimized for axial load capacity |
| P4A | Super precision tolerance class (geometric tolerances tighter than ABEC 7) |
| DGB | Sealed on both sides with grease lubrication for maintenance-free operation |
S7008 ACD/P4ADGB Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The double row design provides superior stiffness compared to single row bearings, making it ideal for applications requiring minimal deflection under load.
Superior Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing effectively handles combined loads including significant bidirectional axial forces.
High-Speed Capability: The phenolic cage material and precision manufacturing enable operation at limiting speeds up to 41,000 rpm, suitable for demanding spindle applications.
Maintenance-Free Operation: Integrated seals and factory-applied grease lubrication provide long-term reliability without requiring re-lubrication throughout the bearing's service life.
S7008 ACD/P4ADGB Bearing Typical Application Areas
The S7008 ACD/P4ADGB is specifically designed for high-performance applications including:
- Machine Tool Spindles - CNC machining centers, grinding spindles
- High-Speed Motors - Industrial motors, servo motors
- Precision Instrumentation - Measuring equipment, optical devices
- Aerospace Components - Guidance systems, actuator mechanisms
- Medical Equipment - Dental handpieces, surgical tools
