■ Specifications
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.
■ Technical Data
►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
