{"id":908,"date":"2026-09-10T04:01:58","date_gmt":"2026-09-10T04:01:58","guid":{"rendered":"https:\/\/nm-coupling.net\/products\/nm97-flexible-coupling\/"},"modified":"2026-09-10T06:14:04","modified_gmt":"2026-09-10T06:14:04","slug":"nm97-flexible-coupling","status":"publish","type":"ep_nm_product","link":"https:\/\/nm-coupling.net\/zh-cn\/products\/nm97-flexible-coupling\/","title":{"rendered":"NM97 \u67d4\u6027\u8054\u8f74\u5668"},"content":{"rendered":"
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Model specifications<\/span><\/p>\n

NM97 technical data<\/h2>\n<\/div>\n

NM97 is a useful transition size: it carries 45 N.m nominal torque and accepts bores up to 42 mm, a meaningful jump from NM82. That extra shaft capacity is often the reason to consider it, so the keyway and remaining hub section deserve attention.<\/p>\n<\/div>\n

\u6a21\u578b<\/th>\u989d\u5b9a\u626d\u77e9<\/th>\u901f\u5ea6\u6781\u9650<\/th>D<\/th>D1<\/th>dmax<\/th>L<\/th>S<\/th>\u5f84\u5411<\/th>\u89d2<\/th><\/tr><\/thead>
NM97<\/a><\/strong><\/td>45 \u725b\u7c73<\/span><\/td>3000 \u8f6c\u901f<\/span><\/td>97 \u6beb\u7c73<\/span><\/td>69 \u6beb\u7c73<\/span><\/td>42 \u6beb\u7c73<\/span><\/td>50 \u6beb\u7c73<\/span><\/td>3.0 +\/- 1.0 \u6beb\u7c73<\/span><\/td>0.05 \u6beb\u7c73<\/span><\/td>2.5 \u5ea6<\/span><\/td><\/tr><\/tbody><\/table><\/div>

D\u3001D1\u3001dmax\u3001L\u3001S \u548c\u5f84\u5411\u503c\u4ee5\u6beb\u7c73\u4e3a\u5355\u4f4d\u3002\u89d2\u5ea6\u4f4d\u79fb\u4ee5\u5ea6\u4e3a\u5355\u4f4d\u3002\u5728\u8f83\u5c0f\u7684\u5c4f\u5e55\u4e0a\uff0c\u6c34\u5e73\u62d6\u52a8\u8868\u683c\u5373\u53ef\u67e5\u770b\u6240\u6709\u5217\u3002<\/p><\/section>\n

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

Fit and machining checks<\/h2>\n

The main envelope grows to 97 mm diameter and 50 mm length. Confirm guard clearance and the shaft-to-shaft space before approving a larger bore, especially on replacement drives where the previous coupling may have been shorter.<\/p>\n<\/div>\n

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

Where this size fits<\/h2>\n

Use the 45 N.m rating and 3000 rpm limit for initial screening, then describe starts, reversing and shock. NM97 can suit pump, blower and machine duties that need more bore capacity than the smaller sizes without yet moving into the heavier mid-range group.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Alignment and assembly<\/h2>\n

The specified hub separation is 3.0 +\/- 1.0 mm. Radial misalignment is limited to 0.05 mm and angular misalignment to 2.5 degrees, so a machine that cannot hold alignment should be corrected rather than upsized as a workaround.<\/p>\n

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D \/ D1<\/strong>97 \/ 69 mm<\/span><\/div>\n
L \/ S<\/strong>50 mm \/ 3.0 +\/- 1.0 mm<\/span><\/div>\n
Alignment<\/strong>0.05 mm radial \/ 2.5 deg angular<\/span><\/div>\n<\/div>\n<\/div>\n
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Prepare the NM97 RFQ<\/h2>\n

For NM97, include the actual bore and keyway on each side plus any drawing-controlled fit. Add the running speed and driven-equipment description so the 42 mm bore capacity is not reviewed in isolation from torque.<\/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 normal flexible-element material. Material alternatives should be tied to temperature, fluid exposure or another defined service requirement, not selected from the colour of an existing ring.<\/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

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

\u901f\u5ea6<\/h3>\n

NM97 is rated to 3000 rpm; verify actual running speed before final selection.<\/p>\n<\/div>\n

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

Torque<\/h3>\n

The nominal rating is 45 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

Compare NM112 when torque or bore is near the NM97 ceiling. If the shafts are below 32 mm and the duty is lighter, NM82 may reduce the coupling envelope.<\/p>\n

NM82<\/a>NM112<\/a><\/div>\n<\/div>\n
Compare all NM sizes<\/a><\/div>\n<\/div>\n<\/section>\n
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NM97 quick answers<\/h2>\n
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\nWhat torque and speed define NM97?<\/summary>\n
NM97 is listed at 45 N.m nominal torque with a 3000 rpm rated speed limit.<\/div>\n<\/details>\n
\nHow large can the finished bore be?<\/summary>\n
The stated maximum bore is 42 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":"

NM97 provides 45 N.m nominal torque, up to 42 mm bore capacity and a rated speed limit of 3000 rpm. It is suited to compact pumps, fans and light machinery when torque, shaft fit, alignment and installation space are all within the model limits.<\/p>","protected":false},"featured_media":936,"template":"","class_list":["post-908","ep_nm_product","type-ep_nm_product","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/nm-coupling.net\/zh-cn\/wp-json\/wp\/v2\/ep_nm_product\/908","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nm-coupling.net\/zh-cn\/wp-json\/wp\/v2\/ep_nm_product"}],"about":[{"href":"https:\/\/nm-coupling.net\/zh-cn\/wp-json\/wp\/v2\/types\/ep_nm_product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nm-coupling.net\/zh-cn\/wp-json\/wp\/v2\/media\/936"}],"wp:attachment":[{"href":"https:\/\/nm-coupling.net\/zh-cn\/wp-json\/wp\/v2\/media?parent=908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}