{"id":1090,"date":"2026-10-09T02:49:46","date_gmt":"2026-10-09T02:49:46","guid":{"rendered":"https:\/\/sun-gears.net\/matched-sun-planet-ring-gear-set\/"},"modified":"2026-10-09T06:54:04","modified_gmt":"2026-10-09T06:54:04","slug":"matched-sun-planet-ring-gear-set","status":"publish","type":"post","link":"https:\/\/sun-gears.net\/no\/matched-sun-planet-ring-gear-set\/","title":{"rendered":"How to Specify a Matched Sun, Planet and Ring Gear Set"},"content":{"rendered":"
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KNOWLEDGE<\/div>\n

How to Specify a Matched Sun, Planet and Ring Gear Set<\/h1>\n

A matched planetary set is defined by the shared tooth system, center-distance geometry, planet count and component interfaces\u2014not by purchasing three unrelated gears together.<\/p>\n

Technical Guide<\/span>Sun Gear<\/span>Planetary Gear<\/span><\/div>\n
Be om et tilbud<\/a>Knowledge Center<\/a><\/div>\n<\/div>\n
\"How<\/figure>\n<\/div>\n<\/section>\n
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Why this topic changes the sun gear decision<\/h2>\n<\/div>\n
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The first step is to define matched sun, planet and ring gear sets in the context of the complete planetary stage. Sun, planet and ring gear tooth data share one center-distance relationship, and the number of planets can add assembly constraints.<\/p>\n

Changing one sun-gear variable can alter ratio, contact, packaging or the mating gear requirements. Preserve the controlled calculation for replacement work and use a system-level review for new designs.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Practical design and replacement implications<\/h2>\n<\/div>\n
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Start with tooth count, module or DP, pressure angle, helix information and any specified profile shift. Then add planet and ring tooth counts and the number of planets.<\/p>\n

The center connection\u2014bore, key, spline, hollow center or integrated shaft\u2014should be defined after the mesh is understood, not treated as a separate cosmetic feature.<\/p>\n<\/div>\n

\"Practical<\/figure>\n<\/div>\n<\/div>\n<\/section>\n
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What to control on the RFQ or drawing<\/h2>\n<\/div>\n
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Item<\/th>\nWhat to define<\/th>\n<\/tr>\n<\/thead>\n
Tooth system<\/td>\nTooth count, module\/DP, pressure angle, helix and profile shift\/modification when applicable.<\/td>\n<\/tr>\n
Planetary context<\/td>\nMating planet\/ring data and planet count when available.<\/td>\n<\/tr>\n
Center interface<\/td>\nBore, keyway, spline, hollow center or integrated shaft plus functional datums.<\/td>\n<\/tr>\n
Plikt<\/td>\nRated\/peak torque, speed, reversals\/shock, life, lubrication and environment.<\/td>\n<\/tr>\n
Process<\/td>\nControlled material, heat treatment, finishing and coating requirements.<\/td>\n<\/tr>\n
Acceptance<\/td>\nTooth\/runout\/dimensional inspection and required documentation.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/section>\n
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Frequently asked questions<\/h2>\n<\/div>\n
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\nCan one loose sun gear answer every design question?<\/summary>\n

Usually not. Mating gear data and the center interface provide important cross-checks.<\/p>\n<\/details>\n

\nShould material or tolerance be copied from a similar part?<\/summary>\n

Only when the controlled design allows it. Similar appearance is not proof of the same duty or specification.<\/p>\n<\/details>\n

\nWhat is the fastest way to get a useful quote?<\/summary>\n

Send the latest drawing or measured tooth\/interface data, mating component information, duty, acceptance needs and quantity.<\/p>\n<\/details>\n<\/div>\n<\/div>\n<\/section>\n

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Anbudsforesp\u00f8rsel<\/div>\n

Be om et tilbud \/ Send en foresp\u00f8rsel<\/h2>\n

Send the drawing, mating gear information, center interface, duty, inspection needs and quantity. The article is selection guidance; the approved drawing controls production.<\/p>\n

Send foresp\u00f8rsel<\/a><\/div>\n

MOQ<\/strong>Fleksibel etter produkttype og total ordreverdi.<\/span><\/div>
Pr\u00f8ver<\/strong>Nye kunder kan be om 1\u20135 deler n\u00e5r delen og prosessen passer.<\/span><\/div>
Blandede bestillinger<\/strong>Ulike soldrev eller relaterte planetkomponentmodeller kan kombineres n\u00e5r den totale ordreverdien er rundt USD 1500 eller mer.<\/span><\/div>
Sm\u00e5 bestillinger<\/strong>Bestillinger fra 1-2 stk. kan diskuteres, vanligvis med en h\u00f8yere enhetspris.<\/span><\/div>
Leveranse<\/strong>Standarddeler: 10\u201325 virkedager. Tilpassede komponenter: 20\u201345 virkedager. Prosjektutstyr: 45\u2013120 virkedager.<\/span><\/div>
Handelsvilk\u00e5r<\/strong>EXW, FOB, CIF og DAP st\u00f8ttes vanligvis. FCA, CFR, CPT, CIP og DDP kan diskuteres fra sak til sak.<\/span><\/div><\/div><\/div>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"

A matched planetary set is defined by the shared tooth system, center-distance geometry, planet count and component interfaces\u2014not by purchasing three unrelated gears together.<\/p>","protected":false},"author":1,"featured_media":1008,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1090","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sun-gears"],"_links":{"self":[{"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/posts\/1090","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/comments?post=1090"}],"version-history":[{"count":1,"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/posts\/1090\/revisions"}],"predecessor-version":[{"id":1136,"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/posts\/1090\/revisions\/1136"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/media\/1008"}],"wp:attachment":[{"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/media?parent=1090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/categories?post=1090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sun-gears.net\/no\/wp-json\/wp\/v2\/tags?post=1090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}