Composite Bearing PTFE Steel Bush Butterfly Valve Bushing

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price: Negotiable
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Delivery term: The date of payment from buyers deliver within days
seat: Zhejiang
Validity to: Long-term effective
Last update: 2017-12-21 23:38
Browse the number: 404
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Composite bearing PTFE steel bush butterfly valve bushing





1.PTFE/Polymer fibres mixture thickness 0.01~0.03mm. Lead-free bearing layer provides an excellent initial transfer film, which effectively coats the mating surfaces of the bearing assembly, forming an oxide type solid lubricant film.



2. Sintered bronze powder thickness 0.20-0.35mm, provides max. thermal conductivity away from the bearing surface, also serves as a reservoir for the PTFE mixture.



3. Steel backing, provides high load carrying capacity, excellent heat dissipation.



4. Copper/Tin plating thickness 0.002mm, provides good corrosion resistance.


































Max. load




Static




250N/mm2




Max.

     speed




Dry running




0.08~0.20




Very low speed




140N/mm2




Hydrodynamic

     operation




0.02~0.08




Rotating

     oscillating




60N/mm2




Friction

     coefficient




Dry




2m/s




Hydrodynamic




>2m/s




Max. PV

     dry

     running)




Short-term

     operation




3.6N/mm2*m/3




Thermal conductivity




42W(m*K)-1




Continuous

     operation




1.8N/mm2*m/3




PV max. hydrodynamic




-195℃~+280℃




Coefficient of thermal

     expansion




11*10-6*K-1


Dick Precision Mechinery, established in 2010, is a professional composite bearing ptfe steel bush butterfly valve bushing manufacturers and suppliers in China, offering customers the best quality products and excellent service. In order to make customers satisfied, customized orders of products are also welcome in our factory.

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