S7007 FW/HC
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7007 FW/HC Bearing Product Overview & Core Advantages
The S7007 FW/HC is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Its design is optimized to support significant combined loads—handling both radial and axial forces in one direction. A key advantage is its ceramic ball construction, which contributes to reduced friction, higher limiting speeds, and extended service life compared to all-steel designs. This bearing is supplied with a preload for enhanced rigidity and rotational accuracy, making it an ideal choice for high-speed spindles and other precision machinery.
S7007 FW/HC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| S7007 | Standard metric series, 35mm bore | Defines the core bearing dimensions |
| FW | Machined window-type cage, Phenolic material | Lightweight cage for high-speed performance and reduced friction |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Enables higher speeds, lower operating temperature, and longer life |
S7007 FW/HC Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The P4 (ABEC-7) tolerance class ensures extremely tight dimensional and running accuracy, which is critical for applications requiring minimal runout and vibration. The application of a preload further increases system stiffness.
- Superior Load Capacity: With an 18° contact angle, this bearing is optimized to handle substantial axial loads in one direction in addition to radial loads, making it suitable for combined load scenarios.
- Exceptional High-Speed Capability: The combination of a lightweight phenolic cage (FW) and low-density ceramic balls (HC) significantly reduces centrifugal forces, allowing for a high limiting speed of 35,000 rpm.
- Sealed & Lubricated for Life: As a sealed unit, it is protected from contamination and comes pre-lubricated, offering a maintenance-free solution within its specified temperature range of -30° to 110 °C.
S7007 FW/HC Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors & Spindles: Where extreme rotational speeds and accuracy are required.
- Medical & Dental Equipment: High-speed handpieces and scanners.
- Aerospace Instrumentation: Gyroscopes and other precision navigation systems.