{"id":910,"date":"2026-09-10T04:02:00","date_gmt":"2026-09-10T04:02:00","guid":{"rendered":"https:\/\/nm-coupling.net\/products\/nm128-flexible-coupling\/"},"modified":"2026-09-10T06:14:05","modified_gmt":"2026-09-10T06:14:05","slug":"nm128-flexible-coupling","status":"publish","type":"ep_nm_product","link":"https:\/\/nm-coupling.net\/fr\/products\/nm128-flexible-coupling\/","title":{"rendered":"NM128 Flexible Coupling"},"content":{"rendered":"
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Sp\u00e9cifications du mod\u00e8le<\/span><\/p>\n

NM128 technical data<\/h2>\n<\/div>\n

NM128 doubles the nominal torque of NM112 to 140 N.m and increases maximum bore to 55 mm. It is a practical candidate for machinery where shaft diameter and starting load have moved beyond the lighter NM sizes.<\/p>\n<\/div>\n

Mod\u00e8le<\/th>Couple nominal<\/th>Limitation de vitesse<\/th>D<\/th>D1<\/th>d max<\/th>L<\/th>S<\/th>Radial<\/th>Angulaire<\/th><\/tr><\/thead>
NM128<\/a><\/strong><\/td>140 Nm<\/span><\/td>3000 tr\/min<\/span><\/td>128 mm<\/span><\/td>90 mm<\/span><\/td>55 mm<\/span><\/td>70 mm<\/span><\/td>3.5 +\/- 1.0 mm<\/span><\/td>0.07 mm<\/span><\/td>2.5 deg<\/span><\/td><\/tr><\/tbody><\/table><\/div>

Les valeurs D, D1, d max, L, S et radiales sont exprim\u00e9es en millim\u00e8tres. Le d\u00e9placement angulaire est indiqu\u00e9 en degr\u00e9s. Sur les petits \u00e9crans, faites glisser le tableau horizontalement pour afficher toutes les colonnes.<\/p><\/section>\n

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interface d'arbre<\/span><\/p>\n

Contr\u00f4les d'ajustement et d'usinage<\/h2>\n

The coupling envelope is 128 mm in diameter with a 70 mm length. Measure the actual space between surrounding structures rather than relying on a previous model number, because a larger hub can solve a bore issue while creating a guard-clearance problem.<\/p>\n<\/div>\n

Fonctionnement<\/span><\/p>\n

O\u00f9 cette taille convient<\/h2>\n

For mixers, conveyors, pumps and similar industrial drives, use the 140 N.m nominal rating as the first screen and describe how the machine starts. A loaded conveyor start and a steady pump at the same running power do not impose the same transient conditions.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Alignement et assemblage<\/h2>\n

The stated separation for NM128 is 3.5 +\/- 1.0 mm. Keep radial misalignment within 0.07 mm and angular misalignment within 2.5 degrees, then inspect the elastomer after commissioning if the installation previously showed uneven wear.<\/p>\n

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D \/ D1<\/strong>128 \/ 90 mm<\/span><\/div>\n
L\/S<\/strong>70 mm \/ 3.5 +\/- 1.0 mm<\/span><\/div>\n
Alignement<\/strong>0.07 mm radial \/ 2.5 deg angular<\/span><\/div>\n<\/div>\n<\/div>\n
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Prepare the NM128 RFQ<\/h2>\n

A useful NM128 quotation request combines mechanical interface and duty data: both bores, both keyways, rpm, torque or motor power, driven machine, quantity and any controlled fit. Attach the shaft drawing when shoulders or unusual keys affect machining.<\/p>\n

Utilisez le guide de s\u00e9lection NM \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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\u00c9l\u00e9ment flexible<\/span><\/p>\n

Conditions mat\u00e9rielles et de service<\/h2>\n<\/div>\n

NBR is standard for the flexible ring. If the drive is near heat, lubricants or process chemicals, identify the exposure and any required material so the elastomer is not chosen by appearance alone.<\/p>\n<\/div>\n

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\u00c9l\u00e9ment<\/h3>\n

Indiquez le mat\u00e9riau ou l'environnement de service requis ; ne vous fiez pas uniquement \u00e0 la couleur pour identifier la composition chimique de l'\u00e9lastom\u00e8re.<\/p>\n<\/div>\n

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Usinage<\/h3>\n

Indiquez s\u00e9par\u00e9ment les al\u00e9sages et rainures de clavette menants et men\u00e9s, y compris les ajustements contr\u00f4l\u00e9s le cas \u00e9ch\u00e9ant.<\/p>\n<\/div>\n

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Vitesse<\/h3>\n

NM128 is rated to 3000 rpm; verify actual running speed before final selection.<\/p>\n<\/div>\n

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Couple<\/h3>\n

The nominal rating is 140 N.m. Describe unusual starts, reversing or shock in the enquiry.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Comparez les tailles NM les plus proches<\/h2>\n

When 55 mm bore capacity or 140 N.m torque is insufficient, review NM148. When the application is comfortably below those limits, NM112 may provide a smaller diameter and shorter assembly.<\/p>\n

NM112<\/a>NM148<\/a><\/div>\n<\/div>\n
Comparer toutes les tailles NM<\/a><\/div>\n<\/div>\n<\/section>\n
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NM128 quick answers<\/h2>\n
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\nWhat torque and speed define NM128?<\/summary>\n
NM128 is listed at 140 N.m nominal torque with a 3000 rpm rated speed limit.<\/div>\n<\/details>\n
\nQuelle peut \u00eatre la taille maximale du diam\u00e8tre final ?<\/summary>\n
The stated maximum bore is 55 mm. Bore, keyway and fit still need to be checked together for the ordered hub.<\/div>\n<\/details>\n
\nQuelles donn\u00e9es relatives \u00e0 l'arbre dois-je envoyer\u00a0?<\/summary>\n
Veuillez indiquer les diam\u00e8tres des arbres menant et men\u00e9, les deux rainures de clavette, la vitesse de rotation, le rapport cyclique, la quantit\u00e9 et tout ajustement contr\u00f4l\u00e9 par dessin.<\/div>\n<\/details>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"

NM128 provides 140 N.m nominal torque, up to 55 mm bore capacity and a rated speed limit of 3000 rpm. It is suited to mid-range pumps, blowers, mixers and machinery when torque, shaft fit, alignment and installation space are all within the model limits.<\/p>","protected":false},"featured_media":930,"template":"","class_list":["post-910","ep_nm_product","type-ep_nm_product","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/nm-coupling.net\/fr\/wp-json\/wp\/v2\/ep_nm_product\/910","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nm-coupling.net\/fr\/wp-json\/wp\/v2\/ep_nm_product"}],"about":[{"href":"https:\/\/nm-coupling.net\/fr\/wp-json\/wp\/v2\/types\/ep_nm_product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nm-coupling.net\/fr\/wp-json\/wp\/v2\/media\/930"}],"wp:attachment":[{"href":"https:\/\/nm-coupling.net\/fr\/wp-json\/wp\/v2\/media?parent=910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}