description
elastomer wiper with a sharply-defined lip edge and metal housing. the two parts are vulcanized in a single unit.
application
not bolded symbols; please consult our technical for application limitations
category of profile
molded/standard/trade product or machined with minor design change.
single acting
area of application: hydraulics & pneumatics
hydraulic and pneumatic systems, reciprocal movements, medium dirt load.
function
the WR 03-A is a single function wiper. It is pressed against the descending piston rod wiping the dirt from the surface of the rod. the seals, their associated elements and the hydraulic medium are protected from dirt. the metal angle ring with its additional press fit on the outer circumference, ensure the functionally correct fit of the wiper in the housing.
media
hydraulic oils acc. to DIN 51524/51525, lubricating oils, other mineral oil based fluids and HFA, HFB, HFC highly non-flammable hydraulic fluids acc. to VDMA 24317.
the stated operation conditions represent general indications. it is recommended not to use all maximum values simultaneously. surface speed limits apply only to the presence of adequate lubrication film.
surface quality
| surface roughness |
Rtmax (μm) |
Ra (μm) |
| sliding surface | according to seal data | |
| bottom of groove | ≤6,3 | ≤1,6 |
| groove face | ≤15 | ≤3 |
fitting & installation
the wiper is easily built in to split housing, provided the lead-in chamfer is in accordance with the table below:
seal & housing recommendations
please note that we are able to produce those profiles to your specific need or any non standard housing. for detail measurements, please see jet seal pars catalog…
don’t hesitate to contact our technical department for further information or for special requirements (temperature, speed etc.), so that suitable materi- als and/or designs can be recommended.