WIPER SEALS BECA 480 TECHNICAL DATA

Transcription

1 WIPER SEALS BEA 480 DESRIPTION The BEA 480 profile is a composite wiper seal composed of a filled PTFE friction ring and a pre-tightened rubber O'Ring. ADVANTAGES Low friction coefficient; no stick-slip effect Wide temperature range and excellent chemical resistance, depending on the materials selected Excellent abrasion and wear resistance Very good wiping effect against external pollutions APPLIATIONS Shock absorbers Standard cylinders MATERIALS Friction ring -filled PTFE arbon-filled PTFE Virgin PTFE O'Ring NBR 70 Shore A TEHNIAL DATA Temperature Speed Media -30 / m/s Lubricated air Oil-free air Non-aggressive gases The figures above indicate the maximum values and may not be cumulated. They may be developed, depending on the materials used. SURFAE ROUGHNESS Roughness Dynamic surface area Static surface area Groove flanks Ra µm 1.6 µm 3.2 µm Rz µm 6.3 µm 10.0 µm Rmax µm 10.0 µm 16.0 µm RADIUS Radial section S HAMFER Radius R1 Radius R The chamfer length as well as the chamfer angle are determined by the rod seal. Other grades of materials are available. Please refer to the materials table on the next page. QUALITY & EXPERTISE FOR YOUR SEALING NEEDS

2 TABLE MATERIALS Standard code ISO code Friction ring O'Ring Material olour haracteristics ode Type of material Service temperature Mating surface material DP P Virgin PTFE White D G PTFE + 25% arbon PTFE + 23% arbon + 2% Graphite Grey Black Resistance to chemical products Impermeability Dielectric Non-stick Low friction coefficient Food industry ompression set Good resistance to chemical products Thermal and electrical conductivity Anti-static High-performing in compression-based dynamic applications F6 VMQ 70 Shore A -60 /+200 Stainless steel Aluminium Treated surface DV VM V M PTFE + 25 % Glass PTFE + 15 % Glass + 5% MOS2 Blue Grey Mechanical strength Slightly more abrasive, however, this is corrected by adding MOS2 Maintains its chemical and dielectric properties Well-suited to applications with rotational and simultaneous alternating movements DX X PTFE GL Blue + Glass + Metal oxides Turquoise blue Resistance to compression Resistance to wear Excellent chemical stability Good thermal conductivity DG K1 K2 G K K PTFE + 15% Graphite PTFE + 10% Ekonol PTFE + 20% Ekonol Black Light Light Reduced wear on metal parts Self-lubricating Thermal and electrical conductivity Low permeability Good friction coefficient Anti-static High performing in dynamic self-lubricating applications Better abrasion resistance Better dimensional stability at high temperatures Use up to +300 Good friction coefficient and low permeability Stainless steel Aluminium Treated surface DB B4 B B PTFE + 60% PTFE + 40% Dark Dark Warping resistance and creep strength ompression resistance Self-lubricating Electrical and thermal conductivity Does not alter the metal parts Reduced hold with certain chemical products Used for high-compression dynamic seals and has a low level of wear Other grades of materials are available depending on your specificities.

3 L1 Ød2 R2 60 S R1 L3=1,0 20/30 Ød1 ØD2 ØD1 INSTALLATION DIMENSIONS Groove diameter Bore diameter Groove width Step width O Ring cross-section Standard range Extended range ØD1 H9 ØD2 H11 L1 0/+0.20 Ød d d d d d d d d d d EXAMPLE OF ODIFIATION STANDARD ODIFIATION Materials : Friction ring, PTFE + 60% - ode DB : NBR 70 Shore A O'Ring - ode K6 : Ød mm Groove diameter : ØD1 = mm Part number : DBK6 Part number - Family Friction ring material* O'Ring material* DB K6 * The codes that define the materials are set out in the materials table on the previous page.

4 DIMENSIONS Part number Groove diameter ØD1 H9 Bore diameter ØD2 H11 Groove width L1 0/+0.20 Step width

5 Part number Groove diameter ØD1 H9 Bore diameter ØD2 H11 Groove width L1 0/+0.20 Step width FRANE JOINT SAS Zone Artisanale Le Mortier - B.P ugand Montaigu edex - France Ph. +33 (0) Fax +33 (0) contact@francejoint.fr - Website: