{"id":668,"date":"2026-10-08T07:36:46","date_gmt":"2026-10-08T07:36:46","guid":{"rendered":"https:\/\/sun-gears.net\/cnc-machine-tools\/"},"modified":"2026-10-09T05:41:57","modified_gmt":"2026-10-09T05:41:57","slug":"planetary-gearboxes","status":"publish","type":"page","link":"https:\/\/sun-gears.net\/kk\/planetary-gearboxes\/","title":{"rendered":"Sun Gears for Planetary Gearboxes"},"content":{"rendered":"
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INDUSTRIAL PLANETARY DRIVES<\/div>\n

Sun Gears for Planetary Gearboxes<\/h1>\n

Planetary gearboxes place the sun gear at the center of the mesh. A reliable RFQ must treat the sun gear, planet gears, ring gear and carrier geometry as one system.<\/p>\n

Duty<\/span>Interface<\/span>Inspection<\/span><\/div>\n
Request a Quote<\/a>Browse Products<\/a><\/div>\n<\/div>\n
\"Sun<\/figure>\n<\/div>\n<\/section>\n
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Application-specific RFQ checklist<\/h2>\n<\/div>\n
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Parameter<\/th>\nWhat to Specify<\/th>\n<\/tr>\n<\/thead>\n
Duty data<\/td>\nRated and peak torque, input\/output speed, starts, reversals and target life.<\/td>\n<\/tr>\n
Geometry<\/td>\nSun\/planet\/ring tooth counts, module or DP, pressure angle and any profile shift.<\/td>\n<\/tr>\n
Interface<\/td>\nSpline, shaft, bore, bearing-seat and retention details.<\/td>\n<\/tr>\n
Risk point<\/td>\nLoad sharing and tooth-contact errors can concentrate load on one planet path.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/section>\n
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Confirm the whole planetary interface<\/h2>\n<\/div>\n
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Start by identifying which planetary member is input, output or fixed, then verify the sun-to-planet mesh and the ring-gear relationship before manufacturing.<\/p>\n

When the original gearbox drawing is missing, supply tooth counts for the sun, planets and ring, plus carrier\/center-distance information so the stage can be checked as a complete gear train.<\/p>\n<\/div>\n

\"Sun<\/figure>\n<\/div>\n<\/div>\n<\/section>\n
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System-level selection for industrial planetary stages<\/h2>\n

The sun gear may be the fastest member in the stage, so tooth accuracy, runout, lubrication and shaft\/spline alignment all influence service behavior.<\/p>\n<\/div>\n

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For a new design, define the sun\/planet\/ring tooth relationship before finalizing the center interface. For replacement work, inspect the planets, ring, carrier support and lubrication condition so a new sun gear is not installed into an already damaged stage.<\/p>\n

Use the application to decide which measurements deserve the most attention: peak torque and shock for heavy equipment, backlash and runout for motion systems, or life and documentation for long-duration duty.<\/p>\n<\/div>\n

\"System-level<\/figure>\n<\/div>\n<\/div>\n<\/section>\n
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\u0421\u04b1\u0440\u0430\u043d\u044b\u0441 \u0431\u043e\u0439\u044b\u043d\u0448\u0430 \u0441\u04b1\u0440\u0430\u049b\u0442\u0430\u0440<\/div>\n

\u0411\u0430\u0493\u0430 \u0441\u04b1\u0440\u0430\u0443 \/ RFQ \u0436\u0456\u0431\u0435\u0440\u0443<\/h2>\n

Send the gearbox drawing, sun\/planet\/ring tooth counts, input and output duty, interface dimensions and quantity. Include the gearbox nameplate when the request is for a replacement.<\/p>\n

Send RFQ<\/a><\/div>\n

MOQ<\/strong>\u04e8\u043d\u0456\u043c \u0442\u04af\u0440\u0456\u043d\u0435 \u0436\u04d9\u043d\u0435 \u0442\u0430\u043f\u0441\u044b\u0440\u044b\u0441\u0442\u044b\u04a3 \u0436\u0430\u043b\u043f\u044b \u049b\u04b1\u043d\u044b\u043d\u0430 \u049b\u0430\u0440\u0430\u0439 \u0438\u043a\u0435\u043c\u0434\u0456.<\/span><\/div>
\u04ae\u043b\u0433\u0456\u043b\u0435\u0440<\/strong>New customers may request 1-5 pieces when the part and process are suitable.<\/span><\/div>
\u0410\u0440\u0430\u043b\u0430\u0441 \u0442\u0430\u043f\u0441\u044b\u0440\u044b\u0441\u0442\u0430\u0440<\/strong>Different sun gear or related planetary-component models can be combined when the total order value is around USD 1,500 or above.<\/span><\/div>
\u0428\u0430\u0493\u044b\u043d \u0442\u0430\u043f\u0441\u044b\u0440\u044b\u0441\u0442\u0430\u0440<\/strong>Orders from 1-2 pieces can be discussed, normally with a higher unit cost.<\/span><\/div>
\u0416\u0435\u0442\u043a\u0456\u0437\u0443<\/strong>Standard parts: 10-25 working days. Custom components: 20-45 working days. Project equipment: 45-120 working days.<\/span><\/div>
\u0421\u0430\u0443\u0434\u0430 \u0448\u0430\u0440\u0442\u0442\u0430\u0440\u044b<\/strong>EXW, FOB, CIF \u0436\u04d9\u043d\u0435 DAP \u04d9\u0434\u0435\u0442\u0442\u0435 \u049b\u043e\u043b\u0434\u0430\u0443 \u043a\u04e9\u0440\u0441\u0435\u0442\u0456\u043b\u0435\u0434\u0456. FCA, CFR, CPT, CIP \u0436\u04d9\u043d\u0435 DDP \u04d9\u0440 \u0436\u0430\u0493\u0434\u0430\u0439\u0434\u044b \u0436\u0435\u043a\u0435 \u0442\u0430\u043b\u049b\u044b\u043b\u0430\u0443\u0493\u0430 \u0431\u043e\u043b\u0430\u0434\u044b.<\/span><\/div><\/div><\/div>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"

Planetary gearboxes place the sun gear at the center of the mesh. A reliable RFQ must treat the sun gear, planet gears, ring gear and carrier geometry as one system.<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-668","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sun-gears.net\/kk\/wp-json\/wp\/v2\/pages\/668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sun-gears.net\/kk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sun-gears.net\/kk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/kk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/kk\/wp-json\/wp\/v2\/comments?post=668"}],"version-history":[{"count":3,"href":"https:\/\/sun-gears.net\/kk\/wp-json\/wp\/v2\/pages\/668\/revisions"}],"predecessor-version":[{"id":1047,"href":"https:\/\/sun-gears.net\/kk\/wp-json\/wp\/v2\/pages\/668\/revisions\/1047"}],"wp:attachment":[{"href":"https:\/\/sun-gears.net\/kk\/wp-json\/wp\/v2\/media?parent=668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}