The smart curtain adopts a kind of high-tech fabric,which is combined with the technology of high-efficiency light induction, magnetron sputtering, and nano-film inner lamination.Compared with traditional curtains, it has the advantages of high-end atmosphere, beautiful appearance, heat insulation, shading, UV protection, and more transparent vision. It is a smart film curtain product that subverts the industry. Smart Curtain Film Shenzhen YuGuang New Material Co.,Ltd , https://www.ygsmartfilm.comSliding Bearing Bushing Data and Layout
The bearing bush is an essential part of the bearing system. It directly contacts the shaft, supports the load, and moves relative to the shaft. To minimize friction and wear, the bearing material must meet several requirements, including good anti-seizing properties, low friction coefficient, and durability.
1. **Satisfactory Mechanical Strength**: The bearing alloy should have sufficient compressive strength, fatigue resistance, and impact resistance. The thickness of the bearing alloy layer typically ranges from 0.013 mm to 0.13 mm.
2. **Anti-Seizing Properties**: When the load is high and the speed is fast, the bearing clearance may be too large. In such cases, the material must resist adhesion and maintain smooth operation.
3. **Adaptability to Foreign Particles**: The material should be soft enough with good plasticity and low elastic modulus to allow it to adapt to foreign particles and reduce damage.
4. **Corrosion Resistance and Cost-Effectiveness**: The material should resist corrosion caused by oxidation and other environmental factors. It should also be affordable and widely available.
**Commonly Used Materials for Bearing Bushes**
Bearing materials are generally divided into two categories: metallic and non-metallic.
**Metallic Materials:**
1. **Cast Iron**: Gray cast iron, wear-resistant cast iron, and ductile iron are suitable for low-speed and light-load applications. They contain graphite that forms a smooth surface layer, improving performance.
2. **Babbitt Alloys**:
- **ZChSnSb10-6**: Offers excellent corrosion resistance and anti-gluing properties. It bonds well with steel backs and is ideal for high-speed and heavy-load applications.
- **ZChPbSb16-16-2**: Resists gluing but has poor thermal expansion and is brittle. Suitable for medium-speed and medium-load conditions.
- Babbitt alloys are known for their wear resistance and thermal conductivity, making them one of the best choices for bearings.
3. **Bronze**:
- **ZCuPb30**: A bimetallic alloy used on both inner and outer surfaces of steel-backed bearings. It provides excellent anti-gluing performance.
- **ZCuSn10-1**: Offers superior friction and wear resistance. It’s ideal for high-speed and heavy-load applications. Though harder than babbitt, it has lower running consistency and requires careful finishing.
4. **Aluminum Alloys**:
- **Low-tin aluminum alloys (Sn < 0.5%)**: Provide good strength and corrosion resistance.
- **High-tin aluminum alloys (Sn > 20%)**: Used in locomotive diesel engines due to their high strength and thermal conductivity.
5. **Metal-Ceramic Bearings**: Made by mixing iron or copper powder with graphite, then forming and sintering to create porous structures. These are soaked in oil and used as oil-impregnated bearings. They are suitable for low-load and medium-speed applications but not for high-stress environments.
**Non-Metallic Materials:**
1. **Plastics**: Phenolic resin, nylon, and PTFE are commonly used. They offer good compressive strength, anti-adhesion, and wear resistance. PTFE, in particular, has a low friction coefficient and excellent corrosion resistance.
2. **Rubber**: Hardened rubber is used in applications where the shaft oscillates or tilts. It is suitable for dirty environments and offers good sealing properties.
**Related Bearing Knowledge**
- Understanding the causes of noise in NTN bearings
- How to clean and lubricate sealed textile bearings
- Characteristics of high-speed bearings and how to distinguish between genuine and counterfeit imported bearings
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Sliding bearing bushing data and layout
Source: China Bearing Network | Time: 2013-02-08