<article class="subdiv"> <header id="titre" class="subdiv"> <h1>How to use a winch with pulley or pulley block</h1> </header> <div id="pdfdata" class="subdiv"> <div style="display:inline-block;width:20%;"> <a href="https://it4v7.interactiv-doc.fr/html/huchez_catalogue_en_1069/rna/page/96"><img style="width:100%;" src="./thumbs/96.jpg"></a> </div> </div> <nav id="breadcrumb"> <p>Vous êtes ici : </p> </nav> <main> <p>x ROPES x Use with pulley or pulley block 3t Principle of reeving 2 falls 2 brins 3t 3t 2 brins 3t 3t 3t 2t 2t 1 fall 1 brin 2t 2t 2t 2t 1t 1t 1t 1t 1t 1t 1t 1t 1t 1t 1t1t 1t 1t1t treuil 1t treuil 1t 1 t winch treuil 1t treuil 1t 1 t winch 1t 2t 2t lisse Smooth drum Tambour lisse R R x Deflection angle Tambour rainuré Grooved drum Tambour rainuré R R = 1.5° </p><p>max on smooth drum = 2° max on grooved drum In practice the minimum distance D must be D min = 20 x L 1°30 1° à 1°30 to to 1° à 1°30 1° à 1°30 ' ' Angle à maximum 1° à 1°30 Angle à Angle maximum ' 1° to 1°30 max 1° à 1°30 D D D 2° 2° 2° Angle à maximum 2° 2° Angle à Angle maximum to 2° max 2° L R' L R' L R' L R' An excessive deflection angle causes Tests made by Stuttgart University indicate the following shortening of the rope life according to the slant angle Deflection angle Longevity factor 1 0.9 </p><p>0.75 </p><p>0.70 </p><p>0.67 </p><p>0° 1° 2° 3° 4° Dangerous rope winding Fast wear of the groove and the rope Excessively tight winding on the drum or overlapping GENERAL 96 GENERAL </p> </main> <aside> <ul> <li><a href='https://www.huchez.com/interactive-catalog/'>Interactive digital catalogue HUCHEZ 2026 - Winches and Lifting for professionals</a></li> </ul> </aside> <footer> <table width="100%"> <tr> <td width="100%"><a href="http://www.interactiv-technologies.com/interactiv-doc">Interactiv' Doc</a></td> </tr> </table> <ul> <li><a href="./sitemap.html">Plan du site</a></li> </ul> </footer> </article>