{"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\/it\/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
Richiedi un preventivo<\/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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Articolo<\/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
Dovere<\/td>\nRated\/peak torque, speed, reversals\/shock, life, lubrication and environment.<\/td>\n<\/tr>\n
Processo<\/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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Domande frequenti<\/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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Richiesta di preventivo<\/div>\n

Richiedi un preventivo \/ Invia una richiesta di offerta<\/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

Invia richiesta di preventivo<\/a><\/div>\n

MOQ<\/strong>Flessibilit\u00e0 in base alla tipologia di prodotto e al valore totale dell'ordine.<\/span><\/div>
Campioni<\/strong>I nuovi clienti possono richiedere da 1 a 5 pezzi, a condizione che il componente e il processo siano idonei.<\/span><\/div>
Ordini misti<\/strong>\u00c8 possibile combinare diversi modelli di ingranaggi solari o componenti planetari correlati quando il valore totale dell'ordine \u00e8 pari o superiore a circa 1.500 USD.<\/span><\/div>
Piccoli ordini<\/strong>Ordini da 1 a 2 pezzi sono negoziabili, con un costo unitario generalmente superiore.<\/span><\/div>
Consegna<\/strong>Componenti standard: 10-25 giorni lavorativi. Componenti personalizzati: 20-45 giorni lavorativi. Attrezzature per progetti: 45-120 giorni lavorativi.<\/span><\/div>
termini commerciali<\/strong>I termini EXW, FOB, CIF e DAP sono generalmente supportati. FCA, CFR, CPT, CIP e DDP possono essere discussi caso per caso.<\/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\/it\/wp-json\/wp\/v2\/posts\/1090","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/comments?post=1090"}],"version-history":[{"count":1,"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/posts\/1090\/revisions"}],"predecessor-version":[{"id":1136,"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/posts\/1090\/revisions\/1136"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/media\/1008"}],"wp:attachment":[{"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/media?parent=1090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/categories?post=1090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sun-gears.net\/it\/wp-json\/wp\/v2\/tags?post=1090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}