DWR ptfe bronze is a rod-piston guide ring designed to be used in medium duty hydraulic and pneumatic systems.
Construction machinery , cranes , injection moulding machines , control and regulation equipment , chemical industry and standard cylinders
Note: The permissible sealing gap values of TB strip is indicated in the table below.
|PERMISSIBLE SEALING GAP|
|Diameter (mm)||S (mm)|
Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers.
MATERIAL: PTFE (Bronze filled)
|HFA and HFB||HFC|
|TEMPERATURE||-50°C +200°C||-40°C +200°C||-40°C +200°C|
|DYNAMIC CONTACT PRESSURE||
|SPEED||≤5.0 m/s||≤5.0 m/s||≤15.0 m/s|
Note: The above data are maximum values and cannot be used at the same time.
|Sliding Surface ØD-Ød||≤0.3 μm||≤2.5μm|
|Groove Base ØDb- Ødp||≤1.6 μm||≤10μm|
|Groove Flanks B||≤3.2 μm||≤12μm|
Note: It is recommended to have 50% to 90% of the working surface material contact area value.
CB = Custom build (price on request)
* = Stock item
Stock = 0 (and not a Stock* or CB product) -> minimum item value € 10.00