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**High-Speed Precision Angular Contact Ball Bearing Device**
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The high-speed precision angular contact ball bearing is specifically designed for high-speed rotating applications with light loads. It is a high-precision bearing that offers excellent performance in terms of high speed, low temperature rise, and minimal oscillation, ensuring long service life. These bearings are commonly used as support devices for high-speed electric spindles, particularly in internal and external surface grinders.
**Main Technical Objectives:**
1. **Bearing Accuracy Target:** Exceeds GB/307.1-94 P4 grade.
2. **High-Speed Performance Target:** dmN value ranges from 1.3 to 1.8 × 10ⶠ/min.
3. **Service Life (even):** Greater than 1,500 hours.
The service life of high-speed precision angular contact ball bearings depends significantly on the installation and maintenance process. The following points should be carefully considered:
1. **Installation Environment:** The bearing device must be assembled in a dust-free and clean environment. Careful selection of the bearing is essential, and the spacer should be precisely ground. The parallelism of the spacer must be controlled within 1 µm while maintaining the correct height of the inner and outer ring spacers.
2. **Cleaning and Lubrication:** Before installation, the bearing should be thoroughly cleaned. When the inner ring is facing upwards, it should be handled gently to avoid blockage. After drying, a specified amount of oil should be applied. If an oil mist is used, a small quantity of oil mist oil should be placed to ensure smooth lubrication.
3. **Handling and Installation:** Use special tools during installation, apply even force, and avoid any impact or hammering. This helps maintain the structural integrity and performance of the bearing.
4. **Storage Conditions:** Store the bearings in a clean, well-ventilated area free from corrosive gases. The relative humidity should not exceed 65%. For long-term storage, regular anti-rust treatments are recommended to prevent degradation.
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High-Speed Precision Angular Contact Ball Bearing Device
Source: China Bearing Network | Time: 2014-01-24
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