SF-1 is wall wrapped bushing made of triple layer composites material which be consisted of a steel backing, a sintered porous bronze particles interlayer and calendared with PTFE and mixture as surface layer, It is of low friction coefficient, anti-wear, anti-corrosion and can be used without oil, or only a trace of oil if needed. Moreover, it is of low cost, low vibration and low noise, compacted and light, SF-1 is widely applied in various sliding articles of different kind of machines, such as textile machines, tobacoo machines, hydraulic vechicles, antomobiles, agriculture and forests machinese and soon.
►Possible Application:
Automotive:
McPherson struts and shock absorbers, doors, bonnets and tailgate hinges, steering columns, clutches, gearbox selector fork guides, wiper arms, power steering pumps, pedal bushes, ABS equipment, etc.
Industrial:
Aerospace, agricultural equipment, construction equipment, material handling equipment, forming machines-metal, plastic and rubber, office equipment, medical and scientific equipment, packaging equipment, pneumatic and hydraulic cylinders, pumps and motors, railroad and ramways, textile machinery, valves, etc.
►Physical & Mechanical Properties:
| Items | Value | Unit | |
| Thermal Conductivity | 40 | W/mK | |
| Maximum Operating Temperature Tmax | 280 | °C | |
| Minimum Operating Temperature Tmin | -200 | °C | |
| Compressive Yield Strength | 350 | N/mm2 | |
| Maximum Static Load Psta,max | 250 | N/mm2 | |
| Maximum Dynamic Load Pdyn,max | 140 | N/mm2 | |
| Maximum Sliding Speed V-dry | 2.5 | m/s | |
| Maximum PV Factor-dry, continuous operation | 1.8 | N/mm2 * m/s | |
| Maximum PV Factor-dry, intermittent operation | 3.5 | N/mm2 * m/s | |
| Coefficient of friction f-dry | 0.02-0.25 | ||
| Coefficient of friction f-oil lubricated | 0.02-0.12 | ||
►Usage Range:
| dry | good |
| oil lubricated | good |
| grease lubricated | fair |
| water lubricated | fair |
| process fluid lubricated | fair |
du bushings
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