{"id":914,"date":"2026-09-10T04:02:01","date_gmt":"2026-09-10T04:02:01","guid":{"rendered":"https:\/\/nm-coupling.net\/products\/nm214-flexible-coupling\/"},"modified":"2026-09-10T06:14:07","modified_gmt":"2026-09-10T06:14:07","slug":"nm214-flexible-coupling","status":"publish","type":"ep_nm_product","link":"https:\/\/nm-coupling.net\/ko\/products\/nm214-flexible-coupling\/","title":{"rendered":"NM214 Flexible Coupling"},"content":{"rendered":"
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Model specifications<\/span><\/p>\n

NM214 technical data<\/h2>\n<\/div>\n

NM214 is the largest listed NM size, rated at 1000 N.m nominal torque with a 95 mm maximum bore. Its role is straightforward: it provides the highest capacity in this range, but the machine must also accept a 214 mm diameter, 110 mm length and 1500 rpm speed limit.<\/p>\n<\/div>\n

Model<\/th>Nominal torque<\/th>Speed limit<\/th>D<\/th>D1<\/th>d max<\/th>L<\/th>S<\/th>Radial<\/th>Angular<\/th><\/tr><\/thead>
NM214<\/a><\/strong><\/td>1000 N.m<\/span><\/td>1500 rpm<\/span><\/td>214 mm<\/span><\/td>157 mm<\/span><\/td>95 mm<\/span><\/td>110 mm<\/span><\/td>4.0 +\/- 2.0 mm<\/span><\/td>0.10 mm<\/span><\/td>2.0 deg<\/span><\/td><\/tr><\/tbody><\/table><\/div>

D, D1, d max, L, S and radial values are in millimetres. Angular displacement is shown in degrees. On smaller screens, drag the table horizontally to view all columns.<\/p><\/section>\n

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Shaft interface<\/span><\/p>\n

Fit and machining checks<\/h2>\n

Large shafts make bore geometry critical. Provide the actual 95 mm-or-smaller shaft dimensions, keyways, fits and shoulders rather than a rounded nominal size. Also confirm the guard and adjacent structures can clear the full coupling envelope.<\/p>\n<\/div>\n

Operating duty<\/span><\/p>\n

Where this size fits<\/h2>\n

Use NM214 only when the higher capacity is justified by the real torque and shaft interface. Large pumps, process drives and compressor-related machinery may fall into this class, but starts and transient loads still need to be stated for the application.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Alignment and assembly<\/h2>\n

Set the model to S 4.0 +\/- 2.0 mm and keep radial misalignment within 0.10 mm and angular misalignment within 2.0 degrees. On large machinery, re-check these values after the final base, piping and connected-equipment loads are applied.<\/p>\n

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D \/ D1<\/strong>214 \/ 157 mm<\/span><\/div>\n
L \/ S<\/strong>110 mm \/ 4.0 +\/- 2.0 mm<\/span><\/div>\n
Alignment<\/strong>0.10 mm radial \/ 2.0 deg angular<\/span><\/div>\n<\/div>\n<\/div>\n
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Prepare the NM214 RFQ<\/h2>\n

An NM214 enquiry should include running rpm, design torque or motor power, both shaft diameters and keyways, quantity, destination and any controlled fit or material request. Drawings are recommended when the bores or shoulders are close to the model envelope.<\/p>\n

Use the NM selection guide →<\/a><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Flexible element<\/span><\/p>\n

Material and service conditions<\/h2>\n<\/div>\n

NBR is the standard flexible-element material for this range. For a large drive with elevated heat or aggressive fluids, state the exposure and requested polymer or hardness explicitly so the quotation reflects it.<\/p>\n<\/div>\n

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Element<\/h3>\n

State the required material or service environment; do not identify elastomer chemistry by colour alone.<\/p>\n<\/div>\n

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Machining<\/h3>\n

List the driving and driven bores and keyways separately, including controlled fits where required.<\/p>\n<\/div>\n

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Speed<\/h3>\n

NM214 is rated to 1500 rpm; verify actual running speed before final selection.<\/p>\n<\/div>\n

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Torque<\/h3>\n

The nominal rating is 1000 N.m. Describe unusual starts, reversing or shock in the enquiry.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Compare the nearest NM sizes<\/h2>\n

NM214 has no larger model in this listed NM range. If its 1000 N.m torque or 95 mm bore is still insufficient, the application should move to a different coupling selection rather than assuming another NM size exists.<\/p>\n

NM194<\/a><\/div>\n<\/div>\n
Compare all NM sizes<\/a><\/div>\n<\/div>\n<\/section>\n
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NM214 quick answers<\/h2>\n
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\nWhat torque and speed define NM214?<\/summary>\n
NM214 is listed at 1000 N.m nominal torque with a 1500 rpm rated speed limit.<\/div>\n<\/details>\n
\nHow large can the finished bore be?<\/summary>\n
The stated maximum bore is 95 mm. Bore, keyway and fit still need to be checked together for the ordered hub.<\/div>\n<\/details>\n
\nWhat shaft data should I send?<\/summary>\n
Send the driving and driven shaft diameters, both keyways, running speed, duty, quantity and any drawing-controlled fit.<\/div>\n<\/details>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"

NM214 provides 1000 N.m nominal torque, up to 95 mm bore capacity and a rated speed limit of 1500 rpm. It is suited to higher-torque pumps, compressors and process equipment when torque, shaft fit, alignment and installation space are all within the model limits.<\/p>","protected":false},"featured_media":929,"template":"","class_list":["post-914","ep_nm_product","type-ep_nm_product","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/nm-coupling.net\/ko\/wp-json\/wp\/v2\/ep_nm_product\/914","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nm-coupling.net\/ko\/wp-json\/wp\/v2\/ep_nm_product"}],"about":[{"href":"https:\/\/nm-coupling.net\/ko\/wp-json\/wp\/v2\/types\/ep_nm_product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nm-coupling.net\/ko\/wp-json\/wp\/v2\/media\/929"}],"wp:attachment":[{"href":"https:\/\/nm-coupling.net\/ko\/wp-json\/wp\/v2\/media?parent=914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}