DU Oilless Washer

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.

DU Oilless Washer Designer,All the products described in this handbook are manufactured under DIN EN ISO 9001, ISO/TS 1.

►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