{"id":902,"date":"2026-09-10T04:01:55","date_gmt":"2026-09-10T04:01:55","guid":{"rendered":"https:\/\/nm-coupling.net\/technical-guides\/maintenance\/"},"modified":"2026-09-10T06:14:01","modified_gmt":"2026-09-10T06:14:01","slug":"maintenance","status":"publish","type":"page","link":"https:\/\/nm-coupling.net\/ru\/technical-guides\/maintenance\/","title":{"rendered":"NM Coupling Inspection &#038; Maintenance"},"content":{"rendered":"<p class=\"ep-lead\">\u201cNo lubrication\u201d is not the same as \u201cno maintenance.\u201d The absence of a grease routine simply changes what you inspect. Alignment, hub position, fastener or retention condition, and the flexible ring become the main visible checks.<\/p>\n<h2>Build inspection around the machine\u2019s duty.<\/h2>\n<p>A continuously running clean service may justify a different inspection interval from a machine with repeated starts, vibration or contamination. Use your plant maintenance practice and the actual operating history rather than a fixed interval copied from an unrelated machine.<\/p>\n<h2>Look for patterns, not only damage.<\/h2>\n<p>Check whether elastomer wear is even around the coupling, whether the hubs have moved on the shafts, and whether there is fretting or dust around the bore\/keyway interface. Repeated one-sided wear is a reason to verify alignment. A damaged element should not automatically be treated as the root cause.<\/p>\n<h2>After a replacement<\/h2>\n<p>Confirm the correct NM size, re-check the axial S gap and shaft alignment, and verify that the guard does not contact the coupling. After the machine returns to service, make an early follow-up inspection if the previous element failed unexpectedly.<\/p>","protected":false},"excerpt":{"rendered":"<p>NM couplings do not require lubrication, but alignment, hub security and elastomer condition still deserve routine inspection.<\/p>","protected":false},"author":1,"featured_media":0,"parent":860,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-902","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/nm-coupling.net\/ru\/wp-json\/wp\/v2\/pages\/902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nm-coupling.net\/ru\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nm-coupling.net\/ru\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nm-coupling.net\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nm-coupling.net\/ru\/wp-json\/wp\/v2\/comments?post=902"}],"version-history":[{"count":1,"href":"https:\/\/nm-coupling.net\/ru\/wp-json\/wp\/v2\/pages\/902\/revisions"}],"predecessor-version":[{"id":957,"href":"https:\/\/nm-coupling.net\/ru\/wp-json\/wp\/v2\/pages\/902\/revisions\/957"}],"up":[{"embeddable":true,"href":"https:\/\/nm-coupling.net\/ru\/wp-json\/wp\/v2\/pages\/860"}],"wp:attachment":[{"href":"https:\/\/nm-coupling.net\/ru\/wp-json\/wp\/v2\/media?parent=902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}