{"id":994,"date":"2022-04-11T15:25:16","date_gmt":"2022-04-11T12:25:16","guid":{"rendered":"https:\/\/vlakita.com\/en\/?post_type=product&#038;p=994"},"modified":"2022-04-27T19:22:29","modified_gmt":"2022-04-27T16:22:29","slug":"flexible-pin-type-couplings-boku-n","status":"publish","type":"product","link":"https:\/\/vlakita.com\/en\/product\/flexible-pin-type-couplings-boku-n\/","title":{"rendered":"Flexible pin type couplings BOKU-N"},"content":{"rendered":"<p>Technical characteristics:<\/p>\n<p>Size range: from 4 to 100 000;<\/p>\n<p>Rated torque range: from 40 to 1 000 000 Nm.<\/p>\n<p>Material:<br \/>\nbuffer part and bolt part:<br \/>\nsteel type (St):<br \/>\nup to nominal size 250: steel C 45 DIN EN 10083-2<br \/>\nfrom nominal size 400: EN-GJS-400-15U DIN EN 1563<\/p>\n<p>welded type (St): S355J2+N DIN EN 10025-2<br \/>\ncast-iron type (G): EN-GJL-250-DIN EN 1561<\/p>\n<p>Brake drum:<br \/>\nDepending on size: EN-GJL-250-DIN EN 1561, EN-GJS-400-15U DIN EN 1563, GE 300 DIN EN 10293.<br \/>\nWelded construction (St): S355J2+N DIN EN 10025-2,<br \/>\nSpacer: S355J2+N DIN EN 10025-2,<br \/>\nEN-GJS-400-15U DIN EN 1563.<br \/>\nBrake disk: S355J2+N DIN EN 10025-2.<br \/>\nBuffer:<br \/>\nNR-SBR 75 \u00b15 Shore A, grooved, standard<br \/>\n(grooved buffers are available in more rubber mixtures<br \/>\nwith other Shore hardness)<br \/>\nPUR (Elastopal) 85 \u00b15 Shore A, barrel-shaped.<\/p>\n<p>Balancing condition:<br \/>\nIn general, the couplings with finish bore correspond to a balance quality of Q 16 at n = 1 500 rpm according to VDI 2060, balanced in one level without feather key groove.<br \/>\nAccording to the requirements of the user, the balancing is done in two levels with quality class Q 6.3 at n = 1 500 rpm with finish bore.<br \/>\nIn doing so, please indicate whether the balancing shall be done without feather key groove or with feather key groove however, without feather key.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Flexible pin type couplings are positive-locking, torsionally elastic, flexible shaft couplings with rubbery-elastic transmission elements. They are failsafe and pluggable. Buffer material and buffer geometry ensure an optimal balancing between resilience and restoring action as well as a good damping behavior. Flexible pin type couplings are available in various series and designs. The assignment of driving and drive side is arbitrary. Due to the assembly, the pin coupling has a small circumferential backlash. After the installation of the coupling, it is required to align the drive as precisely as possible because the extent of the displacements have a decisive influence on the service life as well as on the restoring forces and torques. The permissible values define the limit for the sum of alignment errors and operational displacements. The operating temperature range is between -40 \u00b0C (-25 \u00b0C if constructed of gray cast iron) and, depending on the buffer material, up to +100 \u00b0C ( +120 \u00b0C are possible for a short time). Flexible pin type couplings exhibit progressive spring characteristics. Buffer and bolts are interchangeable with those of earlier models. The selection of material for the pin and buffer components depends on the rotational speed. While gray cast iron can be used for low rotational speeds it is required to fall back on steel solutions in case of high speeds. Available as further constructive designs are welded designs. The constructive design (welded part or ductile iron) of steel is done by the manufacturer depending on the size.<\/p>\n<p>Types:<\/p>\n<p>\u2022 design A\/B: standard design;<br \/>\n\u2022 design P: design with brake drum;<br \/>\n\u2022 design S1: design with brake disk;<br \/>\n\u2022 design S2: design with radially removable brake disk;<br \/>\n\u2022 design H: design with spacer.<\/p>\n<p>The following special designs are offered:<br \/>\n\u2022 design with axial backlash limitation;<br \/>\n\u2022 design with safety element;<br \/>\n\u2022 design for an explosive environment:<\/p>\n<p>II 2G llB T5\u00a0 \u00a0 \u00a0 \u00a0-20 \u00b0C \u2264 Ta \u2264 +50 \u00b0C<br \/>\nII 2D 90 \u00b0C\u00a0 \u00a0 \u00a0 \u00a0-20 \u00b0C \u2264 Ta \u2264 +50 \u00b0C<\/p>\n<p>\u2022 design with elastic pin couplings according to KWN 22009;<br \/>\n\u2022 design backlash-free due to prestress;<br \/>\n\u2022 design electrically insulating;<br \/>\n\u2022 design switchable at standstill;<br \/>\n\u2022 pin removable hydraulically;<br \/>\n\u2022 low temperature version;<br \/>\n\u2022 further version upon request.<\/p>\n","protected":false},"featured_media":995,"template":"","meta":{"inline_featured_image":false,"_vp_format_video_url":"","_vp_image_focal_point":[]},"class_list":{"0":"post-994","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-mufty-kwd","7":"product_cat-mufty","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/vlakita.com\/en\/wp-json\/wp\/v2\/product\/994"}],"collection":[{"href":"https:\/\/vlakita.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/vlakita.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vlakita.com\/en\/wp-json\/wp\/v2\/media\/995"}],"wp:attachment":[{"href":"https:\/\/vlakita.com\/en\/wp-json\/wp\/v2\/media?parent=994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}