DP4 thrust washer


Properties

DP4 thrust washer Suitable for dry running with a low coefficient of friction, low wear rate, good sliding characteristics, the transfer film created will protect the mating metal surface. Suitable for rotary and oscillating movement, high chemical resistance, lower absorption of water and reduced swelling. Also performs well with lubrication.


Material

PTFE / Fibre + Bronze + Steel + Copper plating / tin-plating

Technical Data

Physical and Mechanical Properties Usage
Maximum Operating Temperature Tmax 280°C dry good
Minimum Operating Temperature Tmin -200°C oil lubricated very good
Maximum Static Load Psta,max 250N/mm² grease lubricated good
Maximum Dynamic Load Pdyn,max 140N/mm² water lubricated fair
Maximum Sliding Speed V-dry 2.5m/s process fluid lubricated good
Maximum Sliding Speed V-oil lubricated 5m/s    
Maximum PV Factor-dry 1N/mm²·m/s    
Maximum PV Factor-oil lubricated 10N/mm²·m/s    
Coefficient of friction f-dry 0.04-0.25    
Coefficient of friction f-oil lubricated 0.02-0.08    

Einsatzgebiete

This material meets the demanding criteria for long life and trouble-free performance with or without lubrication.
Automotive: tractors, combines, crop sprayers, earthmovers, graders and other construction, auto machines, specific uses in power steering cylinders, steering gear thrust washers, disc brakes, calipers and pistons, shock absorbers, governor linkage, windshield wiper motor, tilt gear assemblies...
Business machines: photocopy machines, typewriters, mail sorters, postage meter systems, computer terminal printers and peripheral equipment, automatic printing devices, mail processing machinery...
Hydraulics and valves: pumps including gear, rotary, water, axial piston, and other types, ball, butterfly, poppet steam, and other valves and valve trunnions...
Home appliances: tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines, ovens, dishwashers, clothes washing machines...And materials handling, marine engine, packaging, textile equipment, tools...etc.

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