S7008 ACE/P4BVG275
Sealed Super Precision Angular Contact Ball Bearings
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S7008 ACE/P4BVG275 Bearing Product Overview & Core Advantages
The S7008 ACE/P4BVG275 is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. As a single-row bearing with a 25° contact angle, it is optimized to handle combined loads, particularly high axial loads in one direction. Its P4 (ABEC-7) tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and precision machinery. The bearing comes preloaded and pre-lubricated for immediate installation and consistent performance.
S7008 ACE/P4BVG275 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7008 | Basic bearing series, indicating a 40mm bore, 68mm OD, and 15mm width. |
| ACE | Designates a 25° contact angle and specific internal design optimized for high-speed operation. |
| P4 | Indicates a high-precision tolerance class (equivalent to ABEC-7), ensuring minimal runout and vibration. |
| BVG275 | Specifies the seal type (sealed on both sides) and the specific high-performance grease used for lubrication. |
S7008 ACE/P4BVG275 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a phenolic resin cage, 25° contact angle, and optimized internal geometry enables a high limiting speed of 27,000 rpm, reducing centrifugal forces and heat generation.
- Superior Rigidity and Load Capacity: The single-row design with a 25° contact angle provides high axial rigidity and excellent capacity for combined radial and axial loads, with a dynamic load rating of 2632 lbf.
- Precision Performance: Manufactured to P4 tolerance class with a bore diameter tolerance of -0.006mm to 0, ensuring exceptional running accuracy and minimal vibration for sensitive applications.
- Maintenance-Free Operation: The integral seals and factory-applied high-performance grease protect against contamination and provide long-term lubrication within a temperature range of -30°C to 110°C.
S7008 ACE/P4BVG275 Bearing Typical Application Areas
The S7008 ACE/P4BVG275 is ideally suited for high-performance applications where precision, high speed, and reliability are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy joints and arm assemblies.
- Medical Equipment: Dental handpieces, centrifuges, and imaging devices.
- Aerospace Systems: Gyroscopes, actuators, and auxiliary power units.
- High-Speed Motors and Pumps: Where low vibration and long service life are required.
