Jiashan Dick Precision Mechinery Co., Ltd

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Composite Bearing PTFE Steel Bush Butterfly Valve Bushing

Composite Bearing PTFE Steel Bush Butterfly Valve Bushing

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....

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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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