Operating conditions. * Surface roughness of the sliding surface to suit the sealing component used.

Transcription

1 Merkel Wiper P 6 Merkel Wiper P 6 Material Wiper lip Material Code Hardness Nitrile rubber NBR 85 NBR B Shore A Fluoro rubber FKM 85 FKM K Shore A Operating conditions Fig. 1 Merkel Wiper P 6 Product description Single-acting elastomeric dirt wiper with bearing segments. Product advantages NBR dirt wiper that is primarily used for large diameters Good seating at the outside diameter Very good wiping action Wiper can be used for a wide temperature range No twisting in the housing and no pressure build-up between seal and wiper. Application Steel hydraulics engineering, mills, presses. Material 85 NBR B FKM K664 Temperature range in C Hydraulic oils HL, HLP HFA fluids HFB fluids HFC fluids HFD fluids Water HETG (rapeseed oil) HEES (synthetic esters) HEPG (glycol) Mineral greases Running speed v in m/s 2 Surface quality Surface roughness R a R max Sliding surface * * Groove base 1,6 µm 6,3 µm Side of groove 3,0 µm 15,0 µm * Surface roughness of the sliding surface to suit the sealing component used. Design notes Please observe our general design notes in Technical Manual. Tolerance recommendation Nominal Ø d D D H10 H11 The tolerance for the Ø d is defined by the buffer seal. Lead-in chamfers Length and angle are to be designed to suit the rod seal used. Fitting & installation Careful fitting is a prerequisite for the correct function of the Merkel Wiper P 6. Generally, wipers can be quickly and easily fitted by deforming into a kidney shape. Technical Manual.

2 Article list L 1 = > H H L +0,2 R 2 R 1 0,4 Ø Ø Ø D d D 1 rounded and burr-free 16 24,6 5, , FKM K D 20 28,6 5, , FKM K B 24 32,6 5, , FKM K D 25 33,6 5, , FKM K B 28 36,6 5, , FKM K B 30 38,6 5, , FKM K B 32 40,6 5, , FKM K B 35 43,6 5, , FKM K B 42 50,6 5, , FKM K D 45 53,6 5, , FKM K D 45 55,6 5, , FKM K B 50 58,6 5, , FKM K B 55 65,6 5, , FKM K B 56 66,6 5, , FKM K B 60 70,6 5, , FKM K B , ,6 7,5 1,5 85 NBR B D 63 73,6 5, , FKM K B 65 75,6 5, , FKM K B 70 78,6 5, , FKM K D 70 80,6 5, , FKM K B 75 87,2 7, , FKM K B 80 88,6 5, , FKM K D 80 92,2 7, , FKM K B 85 97,2 7, , FKM K B ,2 7, , FKM K B ,6 5,3 7, , FKM K D ,2 7, , FKM K B ,2 7, , FKM K D ,2 7, , FKM K B ,2 7, , FKM K B ,6 5, , FKM K D ,2 7, , FKM K D , ,6 7,5 1,5 85 FKM K B , ,6 7,5 1,5 85 FKM K B , ,6 7,5 1,5 85 FKM K B , FKM K B

3 , FKM K D , FKM K B , ,6 7,5 1,5 85 NBR B D , ,6 7,5 1,5 85 FKM K D , ,6 7,5 1,5 85 NBR B B , NBR B B , FKM K B , NBR B B , ,6 7,5 1,5 85 NBR B B , NBR B B , FKM K B , NBR B B , FKM K B , NBR B B , FKM K B , NBR B B , ,6 7,5 1,5 85 NBR B B , NBR B B , FKM K D , ,5 85 NBR B D ,7 13,5 297,6 7,5 1,5 85 FKM K D , ,6 7,5 1,5 85 NBR B B , NBR B B , FKM K B , FKM K B , ,6 12, FKM K D , NBR B D , NBR B D , ,6 12, NBR B D , NBR B D , NBR B D , NBR B B , FKM K B , NBR B B , FKM K B , NBR B D , , NBR B B , , FKM K D , ,6 12, NBR B D , NBR B D , NBR B B , FKM K D , NBR B B , NBR B B , FKM K D , FKM K D , , NBR B B , , NBR B B , ,6 12, NBR B D , ,6 12, NBR B D

4 L 1 = > H H L +0,2 R 2 R 1 0,4 Ø Ø Ø D d D 1 rounded and burr-free , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B D , FKM K D , ,6 12, NBR B D , ,6 12, NBR B D , ,6 12, NBR B B

5 The catalog details are based on the experience of many years of research in the development and production of seals in the Freudenberg Group and correspond to our current level of knowhow. The sealing action of many catalog products is, however, not only created by the component itself. In many cases depending on the specifi c application it depends signifi cantly on the other parameters, such as installation point, counter surface, pressure, operating temperature, media to be sealed, lubrication, effects of vibration and any ingress of dirt from outside. These and other unknown factors in practical use may noticeably infl uence the functioning of the seals. Against this background generalised statements on the function of the catalog products are not possible. Details in this catalog merely represent general and non-binding reference values which make no claim to be valid for every application. We therefore recommend you to always discuss specifi c applications with our consultancy service. In the event of very high and special loads, for example due to aggressive media, the seal should be selected in co-operation with us; trials to check the functional reliability are often indispensable. Merkel Freudenberg Fluidtechnic GmbH Industriestr. 64 D Hamburg Tel.: +49(0)40/ Fax: +49(0)40/ merkel@freudenberg.de