{"id":897,"date":"2026-09-04T10:09:40","date_gmt":"2026-09-04T10:09:40","guid":{"rendered":"https:\/\/nmcoupling.net\/faq\/"},"modified":"2026-09-04T10:09:40","modified_gmt":"2026-09-04T10:09:40","slug":"faq","status":"publish","type":"page","link":"https:\/\/nmcoupling.net\/vi\/faq\/","title":{"rendered":"C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p"},"content":{"rendered":"
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NM Coupling FAQ<\/h1>\n

Answers below focus on the information needed for B2B model matching, customization and quotation. For a final selection, provide the real machine duty and an approved drawing.<\/p>\n

\"NM
NM flexible jaw coupling<\/figcaption><\/figure>\n<\/section>\n
\n
\nWhat information is required for selection?<\/summary>\n

Provide motor power and speed or transmitted torque, both shaft diameters and keyways, application, start\/stop or shock conditions, ambient environment and available installation space.<\/p>\n<\/details>\n

\nWhy are both torque and bore checked?<\/summary>\n

A coupling can be torque-capable but still unsuitable for the required shaft diameter, or bore-capable but undersized for the duty. Both limits must be reviewed.<\/p>\n<\/details>\n

\nCan I customize the bore or keyway?<\/summary>\n

Custom bore, keyway and fit requests can be evaluated against hub geometry. Release the final machining only after the drawing is confirmed.<\/p>\n<\/details>\n

\nWhich material is used for the NM hubs?<\/summary>\n

The supplied reference page labels the NM coupling hub as forged iron. Any alternative material request should be treated as a project-specific requirement.<\/p>\n<\/details>\n

\nWhat is the flexible element material?<\/summary>\n

The exact element compound is not identified in the supplied reference table. State temperature, oil\/chemical exposure and duty so the element specification can be confirmed.<\/p>\n<\/details>\n

\nCan I buy 1-5 pcs samples?<\/summary>\n

New clients can request 1-5 pcs samples at sample pricing, subject to the model and process requirements.<\/p>\n<\/details>\n

\nCan different models be combined?<\/summary>\n

Mixed-model orders can be reviewed together, with USD 1,500 used as a practical order-value target in the site order reminder.<\/p>\n<\/details>\n

\nAre 1-2 pcs orders accepted?<\/summary>\n

Very small quantities may carry a higher unit cost. Special-case projects are welcome for evaluation rather than being rejected automatically.<\/p>\n<\/details>\n

\nHow should I check installation?<\/summary>\n

Confirm shaft cleanliness, hub position, alignment, element seating, hub spacing and fastening. Investigate repeated wear or abnormal heat\/noise instead of only replacing the element.<\/p>\n<\/details>\n

\nDo you publish stock or delivery-time promises?<\/summary>\n

No fixed stock or lead-time claim is published. Quotation should reflect the model, machining, process and quantity required for the actual order.<\/p>\n<\/details>\n<\/div>\n

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\"NM
NM coupling<\/figcaption><\/figure>\n
\"Structure\"
Structure<\/figcaption><\/figure>\n
\"Installation\"
Installation<\/figcaption><\/figure>\n
\"Application\"
Application<\/figcaption><\/figure>\n<\/div>\n