{"id":693,"date":"2026-10-08T07:37:43","date_gmt":"2026-10-08T07:37:43","guid":{"rendered":"https:\/\/sun-gears.net\/product\/spur-gear-racks\/"},"modified":"2026-10-09T06:54:11","modified_gmt":"2026-10-09T06:54:11","slug":"standard-sun-gears","status":"publish","type":"product","link":"https:\/\/sun-gears.net\/fa\/product\/standard-sun-gears\/","title":{"rendered":"Standard Sun Gears"},"content":{"rendered":"
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SUN GEAR PRODUCTS<\/div>\n

Standard Sun Gears<\/h1>\n

External sun gears for planetary transmissions, quoted from the tooth system, mating gear geometry and bore\/interface drawing.<\/p>\n

Standard Sun Gears<\/span>Planetary Drive<\/span>Custom RFQ<\/span><\/div>\n
Request a Quote<\/a>Browse Products<\/a><\/div>\n<\/div>\n
\"Standard<\/figure>\n<\/div>\n<\/section>\n
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Technical specification \/ ordering data<\/h2>\n<\/div>\n
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Parameter<\/th>\nWhat to Specify<\/th>\n<\/tr>\n<\/thead>\n
Product form<\/td>\nExternal sun gear; spur or helical as defined by the planetary design.<\/td>\n<\/tr>\n
Pitch system<\/td>\nModule or DP per drawing.<\/td>\n<\/tr>\n
Pressure angle<\/td>\nPer mating planet gear \/ drawing.<\/td>\n<\/tr>\n
Tooth count<\/td>\nDefined by the planetary ratio and center-distance geometry.<\/td>\n<\/tr>\n
Bore \/ interface<\/td>\nPlain bore, keyway, spline or other controlled interface.<\/td>\n<\/tr>\n
Material \/ heat treatment<\/td>\nPer drawing and duty requirement.<\/td>\n<\/tr>\n
Tooth finish<\/td>\nHobbed\/shaped\/ground as required by the drawing.<\/td>\n<\/tr>\n
Inspection<\/td>\nTooth thickness\/span\/over-pin, runout\/profile\/lead or other agreed characteristics.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/section>\n
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Selection points<\/h2>\n<\/div>\n

These are the questions to close before production.<\/p>\n

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Mating planet gears<\/h3>\n

Confirm the mating tooth count, pitch system and pressure angle rather than identifying the sun gear in isolation.<\/p>\n<\/article>\n

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Concentricity & runout<\/h3>\n

Define the datum relationship among gear teeth, bore\/spline\/shaft and bearing seats.<\/p>\n<\/article>\n

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Duty<\/h3>\n

Rated and peak torque, speed, reversals, shock and life influence material\/process decisions.<\/p>\n<\/article>\n

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Inspection<\/h3>\n

Agree the report content before production when tooth or interface verification is critical.<\/p>\n<\/article>\n<\/div>\n<\/div>\n<\/section>\n

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Replacement and custom projects<\/h2>\n<\/div>\n
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External sun gears for planetary transmissions, quoted from the tooth system, mating gear geometry and bore\/interface drawing.<\/p>\n

For replacement standard sun gears, confirm the tooth system and mating planet\/ring geometry before using outside diameter as a selection reference. Photos help identify the layout, but measured tooth data control the part.<\/p>\n<\/div>\n

\"Standard<\/figure>\n<\/div>\n<\/div>\n<\/section>\n
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Standard sun gear selection beyond the basic dimensions<\/h2>\n

Use the complete planetary mesh to validate the part. Outside diameter, tooth count and face width are useful checks but do not replace pitch system, pressure angle, profile shift and mating-gear data.<\/p>\n<\/div>\n

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For standard discrete sun gears, freeze the mesh geometry and the locating bore or spline before selecting the tooth-cutting and heat-treatment route. Replacement work should compare the existing planets and ring so worn mating geometry is not treated as a new design target.<\/p>\n

Where the source drawing already controls material, heat treatment or tooth accuracy, keep those requirements unchanged. If the drawing is incomplete, add duty data only to close the missing manufacturing decisions.<\/p>\n<\/div>\n

\"Standard<\/figure>\n<\/div>\n<\/div>\n<\/section>\n
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Before approving production<\/h2>\n<\/div>\n
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Mesh confirmation<\/h3>\n

Verify tooth system and mating planetary geometry.<\/p>\n<\/article>\n

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Interface confirmation<\/h3>\n

Verify bore\/spline\/shaft fits, datums and retention.<\/p>\n<\/article>\n

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Process confirmation<\/h3>\n

Verify material, heat treatment, finishing and coating requirements.<\/p>\n<\/article>\n

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Acceptance confirmation<\/h3>\n

Verify tooth, runout, dimensional and documentation requirements.<\/p>\n<\/article>\n<\/div>\n<\/div>\n<\/section>\n

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\u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0627\u0633\u062a\u0639\u0644\u0627\u0645 (RFQ)<\/div>\n

\u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0642\u06cc\u0645\u062a \/ \u0627\u0631\u0633\u0627\u0644 RFQ<\/h2>\n

Send the drawing, tooth data, mating-component information, duty and quantity. We will review the interface before quotation.<\/p>\n

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

\u062d\u062f\u0627\u0642\u0644 \u0633\u0641\u0627\u0631\u0634<\/strong>\u0627\u0646\u0639\u0637\u0627\u0641\u200c\u067e\u0630\u06cc\u0631 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0646\u0648\u0639 \u0645\u062d\u0635\u0648\u0644 \u0648 \u0627\u0631\u0632\u0634 \u06a9\u0644 \u0633\u0641\u0627\u0631\u0634.<\/span><\/div>
\u0646\u0645\u0648\u0646\u0647\u200c\u0647\u0627<\/strong>New customers may request 1-5 pieces when the part and process are suitable.<\/span><\/div>
\u0633\u0641\u0627\u0631\u0634\u0627\u062a \u0645\u062e\u062a\u0644\u0637<\/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>
\u0633\u0641\u0627\u0631\u0634\u200c\u0647\u0627\u06cc \u06a9\u0648\u0686\u06a9<\/strong>Orders from 1-2 pieces can be discussed, normally with a higher unit cost.<\/span><\/div>
\u062a\u062d\u0648\u06cc\u0644<\/strong>Standard parts: 10-25 working days. Custom components: 20-45 working days. Project equipment: 45-120 working days.<\/span><\/div>
\u0634\u0631\u0627\u06cc\u0637 \u062a\u062c\u0627\u0631\u062a<\/strong>EXW\u060c FOB\u060c CIF \u0648 DAP \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. FCA\u060c CFR\u060c CPT\u060c CIP \u0648 DDP \u0631\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0645\u0648\u0631\u062f \u0628\u0647 \u0645\u0648\u0631\u062f \u0645\u0648\u0631\u062f \u0628\u062d\u062b \u0642\u0631\u0627\u0631 \u062f\u0627\u062f.<\/span><\/div><\/div><\/div>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"

External sun gears for planetary transmissions, quoted from the tooth system, mating gear geometry and bore\/interface drawing.<\/p>","protected":false},"featured_media":1012,"template":"","meta":[],"product_cat":[2023],"product_tag":[],"class_list":["post-693","product","type-product","status-publish","has-post-thumbnail","product_cat-sun-gear-products","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/sun-gears.net\/fa\/wp-json\/wp\/v2\/product\/693","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sun-gears.net\/fa\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sun-gears.net\/fa\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/fa\/wp-json\/wp\/v2\/media\/1012"}],"wp:attachment":[{"href":"https:\/\/sun-gears.net\/fa\/wp-json\/wp\/v2\/media?parent=693"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sun-gears.net\/fa\/wp-json\/wp\/v2\/product_cat?post=693"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sun-gears.net\/fa\/wp-json\/wp\/v2\/product_tag?post=693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}