S7005 ACE/P4BVG275
Sealed Super Precision Angular Contact Ball Bearings
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S7005 ACE/P4BVG275 Bearing Product Overview & Core Advantages
The S7005 ACE/P4BVG275 is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance under combined loads. Its defining characteristic is the 25° contact angle, which enables it to support significant axial loads in one direction while simultaneously handling radial loads. Manufactured to P4 (ABEC-7) tolerance class, this bearing ensures exceptional running accuracy and rotational stability. The combination of a phenolic cage, preload, and factory-applied lubrication makes it an ideal, ready-to-install solution for high-speed spindles and other precision machinery requiring high rigidity and reliability.
S7005 ACE/P4BVG275 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7005 | Denotes the bearing series and size (25mm bore, 47mm OD, 12mm width). |
| ACE | Indicates a 25° contact angle and a phenolic cage. |
| P4 | Specifies the high-precision tolerance class (equivalent to ABEC-7). |
| BVG275 | Signifies the bearing is supplied with preload and is lubricated from the factory. |
S7005 ACE/P4BVG275 Bearing Structural Features & Performance Benefits
- High Rigidity & Preload: The bearing is supplied with a preload, which eliminates internal clearance. This significantly increases system rigidity, reduces vibration, and improves rotational accuracy, which is critical for machine tool spindles.
- Superior Load Capacity: The 25° contact angle is optimized to handle substantial axial loads in one direction in combination with radial loads, making it suitable for applications with demanding combined loads.
- High-Speed Capability: The lightweight and robust phenolic cage ensures stable operation and guides the balls effectively at the limiting speed of 42,000 rpm, reducing friction and heat generation.
- Precision & Longevity: Manufactured to P4 tolerance from high-grade chrome steel, the bearing guarantees minimal runout and consistent performance. The factory lubrication ensures immediate operation and protects against initial wear.
S7005 ACE/P4BVG275 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, dental handpieces, and small precision motors.
- High-Frequency Motors: Where high rotational speed and accuracy are paramount.
- Robotics: Joints and actuators requiring high rigidity and precise movement.
