Other materials are available on request. Operating conditions

Transcription

1 Merkel U-Ring T 18 Merkel U-Ring T 18 Asymmetrical sealing lip POM back-up ring PUR profile ring Profile ring Coe Harness Polyurethane 95 AU V Shore A Fig. 1 Merkel U-Ring T 18 Back-up ring Polyacetal Other materials are available on request. Coe POM PO202 Prouct escription Operating conitions Merkel U-ring with integrate back-up ring, asymmetrical profile with pressurerelieving grooves, outer lip set back an press fit at the insie iameter. Prouct avantages Single-acting piston seal also for stanarise housings accoring to ISO 5597 Very goo static an ynamic tightness High extrusion resistance (back-up ring) back-to-back arrangement for pistons with pressure on both sies High reliability Relief grooves against ynamic rag pressure. Application Heavy uty earth moving equipment, scrap shears. 95 AU V142/POM PO202 Temperature range in C Hyraulic oils HL, HLP HFA fluis HFB fluis HFC fluis HF fluis Water HETG (rapesee oil) HEES (synthetic esters) HEPG (glycol) Mineral greases Pressure p in MPa 40 Running spee v in m/s 0,5 Surface quality Surface roughness R a R max Sliing surface 0,05 0,3 µm 2,5 µm Groove base 1,6 µm 6,3 µm Groove flanks 3,0 µm 15,0 µm Percentage contact area M r >50% to max. 90% at cutting epth c = Rz/2 an reference line C ref = 0%.

2 esign notes Please observe our general esign notes in Technical Manual. Gap imension 2 The largest gap imension occurring on the non-pressurise sie of the seal in operation is of vital importance for the function of the seal. Technical Manual. Regar must be pai to the imensions 1 an f in relation with the guie element use. Profile Max. permissible gap imension 16 MPa 26 MPa 32 MPa 40 MPa 7,5 0,80 0,70 0,50 0,40 >7,5 1,05 0,90 0,85 0,80 Tolerance recommenation an imension 2 The amissible gap with, tolerances, guie play an eflection of the guie uner loa are to be taken into account when esigning 2. Technical Manual. Nominal <40 MPa 400 H8 h11 Fitting & installation We recommen the use of a fitting tool for the fitting. Careful fitting is a prerequisite for the correct function of the seal. Technical Manual.

3 Article list H L +0, 3 Roune an free of burrs 20 C R4 F 2 R 1 0,4 1-0,5 1 H L Profile C Fitting Housing Article No ,3 9,5 7,5 4 W 95 AU V B ,3 10 7,5 4 W 95 AU V B ,3 9,5 7,5 4 W 95 AU V B ,3 10 7,5 4 W 95 AU V B ,3 9,5 7,5 4 W ISO 95 AU V B ,3 10 7,5 4 W 95 AU V B ,3 9,5 7,5 4 W 95 AU V B ,3 10 7,5 4 W 95 AU V B ,3 9,5 7,5 4 W 95 AU V B ,3 10 7,5 4 W 95 AU V B ,3 9,5 7,5 4 W ISO 95 AU V B ,3 10 7,5 4 W 95 AU V B ,3 9,5 7,5 4 W 95 AU V B ,3 10 7,5 4 W 95 AU V B ,2 12, W 95 AU V B , W 95 AU V B ,3 9,5 7,5 4 H 95 AU V B ,2 12, W 95 AU V B ,2 12, W ISO 95 AU V B , W 95 AU V B ,3 9,5 7,5 4 H ISO 95 AU V B ,3 9,5 7,5 4 H 95 AU V B ,2 12, W 95 AU V B , W 95 AU V B ,3 9,5 7,5 4 H 95 AU V B ,2 12, W ISO 95 AU V B , W 95 AU V B ,3 9,5 7,5 4 H ISO 95 AU V B , W 95 AU V B ,2 12, W 95 AU V B , W 95 AU V B , W 95 AU V ,2 12, W 95 AU V B , W 95 AU V B ,2 15,5 12,5 6,5 W 95 AU V B B Available from stock On request: Tool is available, elivery at short notice Fitting: H = by han; W = with fitting tool; blank = axially accessible housing

4 H L +0, 3 Roune an free of burrs 20 C R4 F 2 R 1 0,4 1-0,5 1 H L Profile C Fitting Housing Article No ,2 16,2 12,5 6,5 W 95 AU V B , ,5 6,5 W ISO 95 AU V B ,2 12, H ISO 95 AU V B ,2 12, W 95 AU V B ,2 16,2 12,5 6,5 W 95 AU V B ,2 15,5 12,5 6,5 W 95 AU V B ,2 12, H 95 AU V B ,6 19,8 15 7,5 W 95 AU V B , ,5 W 95 AU V B ,2 12, H 95 AU V B ,6 19,8 15 7,5 W 95 AU V B , ,5 W 95 AU V B ,2 12, H ISO 95 AU V B ,2 12, H 95 AU V B ,6 19,8 15 7,5 W 95 AU V B , ,5 W 95 AU V B ,2 12, H 95 AU V B ,6 19,8 15 7,5 W 95 AU V B , ,5 W 95 AU V B , ,5 W ISO 95 AU V B , ,5 6,5 H ISO 95 AU V B , ,5 H 95 AU V B , ,5 W 95 AU V B ,6 19,8 15 7,5 W 95 AU V B , ,5 W 95 AU V B , ,5 W ISO 95 AU V B ,6 19,8 15 7,5 W 95 AU V B , ,5 6,5 H ISO 95 AU V B ,6 19,8 15 7,5 W 95 AU V B , ,5 W 95 AU V B ,6 19,8 15 7,5 W 95 AU V B , ,5 W 95 AU V B , ,5 W ISO 95 AU V B B Available from stock On request: Tool is available, elivery at short notice Fitting: H = by han; W = with fitting tool; blank = axially accessible housing

5 The catalog etails are base on the experience of many years of research in the evelopment an prouction of seals in the Freuenberg Group an correspon to our current level of knowhow. The sealing action of many catalog proucts is, however, not only create by the component itself. In many cases epening on the specifi c application it epens signifi cantly on the other parameters, such as installation point, counter surface, pressure, operating temperature, meia to be seale, lubrication, effects of vibration an any ingress of irt from outsie. These an other unknown factors in practical use may noticeably infl uence the functioning of the seals. Against this backgroun generalise statements on the function of the catalog proucts are not possible. etails in this catalog merely represent general an non-bining reference values which make no claim to be vali for every application. We therefore recommen you to always iscuss specifi c applications with our consultancy service. In the event of very high an special loas, for example ue to aggressive meia, the seal shoul be selecte in co-operation with us; trials to check the functional reliability are often inispensable. Merkel Freuenberg Fluitechnic GmbH Inustriestr Hamburg Tel.: +49(0)40/ Fax: +49(0)40/ merkel@freuenberg.e