{"id":703,"date":"2026-09-23T02:02:43","date_gmt":"2026-09-23T02:02:43","guid":{"rendered":"https:\/\/sungears.top\/products\/"},"modified":"2026-09-23T02:02:43","modified_gmt":"2026-09-23T02:02:43","slug":"products","status":"publish","type":"page","link":"https:\/\/sungears.top\/ja\/products\/","title":{"rendered":"\u88fd\u54c1"},"content":{"rendered":"<section class=\"ep-hero ep-hero-split\">\n<div class=\"ep-hero-copy\"><span class=\"ep-eyebrow\">\u88fd\u54c1<\/span><\/p>\n<h1>Sun Gears &#038; Planetary Gear Components<\/h1>\n<p class=\"ep-lede\">Browse sun gears by tooth form, interface and manufacturing requirement, then add matched planet, ring, carrier and pin components when the project requires a complete planetary stage.<\/p>\n<div class=\"ep-actions\"><a class=\"ep-btn\" href=\"#rfq-form\">\u898b\u7a4d\u3082\u308a\u3092\u4f9d\u983c\u3059\u308b<\/a><a class=\"ep-text-link\" href=\"https:\/\/sungears.top\/ja\/contact\/\">Send a drawing or sample details<\/a><\/div>\n<\/div>\n<div class=\"ep-hero-media\"><img width=\"1400\" height=\"900\" src=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-family.webp\" class=\"attachment-full size-full\" alt=\"Sun Gears &amp; Planetary Gear Components\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-family.webp 1400w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-family-300x193.webp 300w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-family-1024x658.webp 1024w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-family-768x494.webp 768w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-family-18x12.webp 18w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-family-600x386.webp 600w\" sizes=\"auto, (max-width: 1400px) 100vw, 1400px\" \/><\/div>\n<\/section>\n<section class=\"ep-section\">\n<div class=\"ep-section-head\"><span class=\"ep-eyebrow\">Catalogue structure<\/span><\/p>\n<h2>The site is organized around what the buyer is actually ordering.<\/h2>\n<p>Most projects start with a sun gear, a sun gear with an integrated shaft or spline, or a group of matched planetary components. Product names therefore describe the component and manufacturing route instead of inventing proprietary series numbers.<\/p>\n<\/div>\n<p><div class=\"ep-card-grid ep-product-card-grid\"><article class=\"ep-card\"><div class=\"ep-card-media\"><img width=\"1200\" height=\"900\" src=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/spur-sun-gear.webp\" class=\"attachment-full size-full\" alt=\"Spur Sun Gears\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/spur-sun-gear.webp 1200w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/spur-sun-gear-300x225.webp 300w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/spur-sun-gear-1024x768.webp 1024w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/spur-sun-gear-768x576.webp 768w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/spur-sun-gear-16x12.webp 16w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/spur-sun-gear-600x450.webp 600w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/div><div class=\"ep-card-body\"><h3>Spur Sun Gears<\/h3><p>Straight-tooth sun gears made to drawing for planetary reducers and transmissions.<\/p><a class=\"ep-text-link\" href=\"https:\/\/sungears.top\/ja\/product\/custom-spur-sun-gear\/\">\u8a73\u7d30\u3092\u898b\u308b<\/a><\/div><\/article><article class=\"ep-card\"><div class=\"ep-card-media\"><img width=\"1200\" height=\"900\" src=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/helical-sun-gear.webp\" class=\"attachment-full size-full\" alt=\"Helical Sun Gears\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/helical-sun-gear.webp 1200w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/helical-sun-gear-300x225.webp 300w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/helical-sun-gear-1024x768.webp 1024w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/helical-sun-gear-768x576.webp 768w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/helical-sun-gear-16x12.webp 16w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/helical-sun-gear-600x450.webp 600w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/div><div class=\"ep-card-body\"><h3>Helical Sun Gears<\/h3><p>Helical sun gears with drawing-controlled helix angle, hand and mating geometry.<\/p><a class=\"ep-text-link\" href=\"https:\/\/sungears.top\/ja\/product\/custom-helical-sun-gear\/\">\u8a73\u7d30\u3092\u898b\u308b<\/a><\/div><\/article><article class=\"ep-card\"><div class=\"ep-card-media\"><img width=\"1200\" height=\"900\" src=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/ground-sun-gear.webp\" class=\"attachment-full size-full\" alt=\"Ground &amp; Heat-Treated Sun Gears\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/ground-sun-gear.webp 1200w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/ground-sun-gear-300x225.webp 300w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/ground-sun-gear-1024x768.webp 1024w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/ground-sun-gear-768x576.webp 768w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/ground-sun-gear-16x12.webp 16w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/ground-sun-gear-600x450.webp 600w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/div><div class=\"ep-card-body\"><h3>Ground &amp; Heat-Treated Sun Gears<\/h3><p>Hard-finished, carburized or nitrided configurations selected from the approved design.<\/p><a class=\"ep-text-link\" href=\"https:\/\/sungears.top\/ja\/product\/precision-ground-sun-gear\/\">\u8a73\u7d30\u3092\u898b\u308b<\/a><\/div><\/article><article class=\"ep-card\"><div class=\"ep-card-media\"><img width=\"1200\" height=\"900\" src=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/splined-sun-gear.webp\" class=\"attachment-full size-full\" alt=\"Splined Sun Gears\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/splined-sun-gear.webp 1200w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/splined-sun-gear-300x225.webp 300w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/splined-sun-gear-1024x768.webp 1024w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/splined-sun-gear-768x576.webp 768w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/splined-sun-gear-16x12.webp 16w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/splined-sun-gear-600x450.webp 600w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/div><div class=\"ep-card-body\"><h3>Splined Sun Gears<\/h3><p>Internal spline and other torque-transmitting bore interfaces integrated into the sun gear.<\/p><a class=\"ep-text-link\" href=\"https:\/\/sungears.top\/ja\/product\/splined-bore-sun-gear\/\">\u8a73\u7d30\u3092\u898b\u308b<\/a><\/div><\/article><article class=\"ep-card\"><div class=\"ep-card-media\"><img width=\"1200\" height=\"900\" src=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-shaft.webp\" class=\"attachment-full size-full\" alt=\"Sun Gear Shafts\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-shaft.webp 1200w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-shaft-300x225.webp 300w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-shaft-1024x768.webp 1024w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-shaft-768x576.webp 768w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-shaft-16x12.webp 16w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/sun-gear-shaft-600x450.webp 600w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/div><div class=\"ep-card-body\"><h3>Sun Gear Shafts<\/h3><p>Integral gear shafts combining teeth with journals, splines, shoulders and end features.<\/p><a class=\"ep-text-link\" href=\"https:\/\/sungears.top\/ja\/product\/sun-gear-shaft\/\">\u8a73\u7d30\u3092\u898b\u308b<\/a><\/div><\/article><article class=\"ep-card\"><div class=\"ep-card-media\"><img width=\"1200\" height=\"900\" src=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set.webp\" class=\"attachment-full size-full\" alt=\"Planetary Gear Components\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set.webp 1200w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-300x225.webp 300w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-1024x768.webp 1024w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-768x576.webp 768w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-16x12.webp 16w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-600x450.webp 600w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/div><div class=\"ep-card-body\"><h3>Planetary Gear Components<\/h3><p>Planet gears, internal ring gears, carriers and pins for matched planetary projects.<\/p><a class=\"ep-text-link\" href=\"https:\/\/sungears.top\/ja\/product\/planetary-gear-set\/\">\u8a73\u7d30\u3092\u898b\u308b<\/a><\/div><\/article><\/div><\/section>\n<section class=\"ep-section ep-surface\">\n<div class=\"ep-split\">\n<div><img width=\"1200\" height=\"900\" src=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set.webp\" class=\"attachment-full size-full\" alt=\"Sun, planet and ring gear components\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set.webp 1200w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-300x225.webp 300w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-1024x768.webp 1024w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-768x576.webp 768w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-16x12.webp 16w, https:\/\/sungears.top\/wp-content\/uploads\/2026\/09\/planetary-gear-set-600x450.webp 600w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/div>\n<div><span class=\"ep-eyebrow\">Planetary system context<\/span><\/p>\n<h2>Why the mating gears belong in the conversation.<\/h2>\n<p>The sun gear meshes with the planet gears, and the planet gears also mesh with the internal ring. Tooth count, pitch system, pressure angle and helical data have to remain compatible across that geometry. For a repair project, send the damaged sun gear plus any available mating parts, assembly drawing or tooth-count data.<\/p>\n<p>For a new design, the ratio, torque path, planet count, carrier geometry and package envelope are useful before a final production drawing exists.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"ep-section\">\n<div class=\"ep-section-head\"><span class=\"ep-eyebrow\">\u9078\u629e\u30de\u30c8\u30ea\u30c3\u30af\u30b9<\/span><\/p>\n<h2>Choose the product family from the interface and finishing requirement.<\/h2>\n<\/div>\n<div class=\"ep-table-scroll\">\n<table class=\"ep-spec-table\">\n<tbody>\n<tr>\n<th scope=\"row\">Custom Spur Sun Gear<\/th>\n<td>Straight teeth; bore, spline or shaft interfaces; drawing-to-print supply.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Custom Helical Sun Gear<\/th>\n<td>Helix angle and hand defined with the mating planet geometry.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Precision Ground Sun Gear<\/th>\n<td>Hard-finished teeth where the drawing requires tighter post-heat-treatment control.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Splined Bore Sun Gear<\/th>\n<td>Internal spline forms integrated directly into the torque path.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Sun Gear Shaft<\/th>\n<td>Gear teeth combined with journals, splines, shoulders or end features.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Planetary Gear Set<\/th>\n<td>Sun + planet + ring components reviewed as one mesh system.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Ring Gear \/ Carrier \/ Planet Pin<\/th>\n<td>Companion parts supplied to their own drawings and assembly datums.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"ep-section ep-surface\">\n<div class=\"ep-section-head\"><span class=\"ep-eyebrow\">Quoting data<\/span><\/p>\n<h2>Do not reduce a Sun Gear RFQ to outside diameter and tooth count.<\/h2>\n<p>The released tooth definition, material and rotating interface are more important than a visual match. Where a drawing does not exist, record the mating components and the operating requirement before reverse-engineering the part.<\/p>\n<\/div>\n<div class=\"ep-table-scroll\">\n<table class=\"ep-spec-table\">\n<tbody>\n<tr>\n<th scope=\"row\">Tooth geometry<\/th>\n<td>Module\/DP, tooth count, pressure angle, spur\/helical, helix angle\/hand, profile modifications if specified<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Dimensions<\/th>\n<td>Face width, tip\/root references, bore, spline, shaft, journal and axial locating faces<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Material &amp; treatment<\/th>\n<td>Material grade, carburizing\/nitriding\/induction\/Q&#038;T requirement, hardness\/case depth if specified<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">\u54c1\u8cea<\/th>\n<td>Gear-quality standard\/grade and inspection characteristics<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">System<\/th>\n<td>Planet\/ring tooth counts, carrier relationship, backlash\/contact requirement<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Duty<\/th>\n<td>Torque, speed, duty cycle, reversals, lubrication and temperature<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Commercial<\/th>\n<td>Quantity, sample need, target date and Incoterm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"ep-section\">\n<div class=\"ep-section-head\"><span class=\"ep-eyebrow\">All products<\/span><\/p>\n<h2>Live WooCommerce catalogue<\/h2>\n<p>Use the product cards below for detailed selection notes and RFQ checklists.<\/p>\n<\/div>\n<div class=\"ep-woo-note\"><div class=\"woocommerce columns-3\"><ul class=\"products columns-3\">\n<li class=\"product type-product post-788 status-publish first instock product_cat-sun-gears has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-789 status-publish instock product_cat-sun-gears has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-790 status-publish last instock product_cat-sun-gears has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-791 status-publish first instock product_cat-sun-gears has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-792 status-publish instock product_cat-sun-gears has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-793 status-publish last instock product_cat-sun-gear-shafts-splines has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-794 status-publish first instock product_cat-sun-gear-shafts-splines has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-795 status-publish instock product_cat-sun-gears has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-796 status-publish last instock product_cat-sun-gears has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-797 status-publish first instock product_cat-sun-gears has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-798 status-publish instock product_cat-planetary-gear-components has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-799 status-publish last instock product_cat-planetary-gear-components has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-800 status-publish first instock product_cat-planetary-gear-components has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-801 status-publish instock product_cat-planetary-gear-components has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<li class=\"product type-product post-802 status-publish last instock product_cat-planetary-gear-components has-post-thumbnail shipping-taxable product-type-simple\">\n\t<\/li>\n<\/ul>\n<\/div><\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Products Sun Gears &#038; Planetary Gear Components Browse sun gears by tooth form, interface and manufacturing requirement, then add matched planet, ring, carrier and pin components when the project requires a complete planetary stage. Request a QuoteSend a drawing or sample details Catalogue structure The site is organized around what the buyer is actually ordering. Most projects start with a sun gear, a sun gear with an integrated shaft or spline, or a group of matched planetary components. Product names therefore describe the component and manufacturing route instead of inventing proprietary series numbers. Planetary system context Why the mating gears belong in the conversation. The sun gear meshes with the [&hellip;]<\/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-703","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sungears.top\/ja\/wp-json\/wp\/v2\/pages\/703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sungears.top\/ja\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sungears.top\/ja\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sungears.top\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sungears.top\/ja\/wp-json\/wp\/v2\/comments?post=703"}],"version-history":[{"count":1,"href":"https:\/\/sungears.top\/ja\/wp-json\/wp\/v2\/pages\/703\/revisions"}],"predecessor-version":[{"id":768,"href":"https:\/\/sungears.top\/ja\/wp-json\/wp\/v2\/pages\/703\/revisions\/768"}],"wp:attachment":[{"href":"https:\/\/sungears.top\/ja\/wp-json\/wp\/v2\/media?parent=703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}