| SF-1D hydraulic special bearing |
Metallographic analysis and material microstructure |
|
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1. PTFE and oleophilic fiber mixture 0.01-0.03mm
2、 球形青铜粉0.2-0.3mm
3. Steel back 0.7-2.3mm
4. Electroplating layer: Tin plating layer with a thickness of 0.005mm, or copper plating layer with a thickness of 0.008mm |
| Product Description |
| SF-1D hydraulic special bearing is a new material designed based on the working principle of oil cylinder and shock absorber on the basis of SF-1P. It appears more wear-resistant under oil-free conditions. In addition to the advantages of SF-1P, this product is particularly suitable for high lateral force applications with frequent reciprocating. Its performance is similar to that of the foreign DP4. Currently, this product is gradually replacing the SF-1P product and is suitable for automotive, motorcycle shock absorbers, and various hydraulic cylinders. |
| Technical Specifications |
Maximum bearing pressure: 140N/mm2
Applicable temperature range: -195~+280 degrees Celsius
Maximum sliding speed: 3m/s
Friction coefficient: 0.04~0.20
Maximum allowable PV value (dry): 3.8N/mm2. m/s
Maximum allowable PV value (oil): 50N/mm2. m/s |
| Application features: |
1.PTFE、 The mixture of lipophilic fibers can form a good transfer film to protect the grinding shaft during exercise.
2. Good wear resistance and low friction coefficient.
3. Good running in performance, no shaft biting phenomenon.
4. Can be used in rotation, oscillation, and reciprocating motion.
5. As it does not contain lead, it can be used in green and environmentally friendly equipment such as food machinery and medical machinery.
6. In addition to the characteristics of SF-1P, the product is particularly suitable for situations with frequent reciprocating motion and large lateral forces, and is suitable for automobiles
Motorcycle shock absorbers and various hydraulic cylinders. |
| Chemical properties of SF-1D series |
| Bearing model |
In the air |
In a vacuum |
In the water |
In steam |
In weak acid |
Medium acid |
Strong acid |
In alkaline solution |
| SF-1D |
Okay, okay |
Okay, okay |
Okay, okay |
Okay, okay |
Poor |
No, no |
No, no |
Okay, okay |
|
| SF-1D end face friction and wear test |
