{"id":1082,"date":"2026-10-09T02:48:50","date_gmt":"2026-10-09T02:48:50","guid":{"rendered":"https:\/\/sun-gears.net\/lubrication-sun-gears-planetary\/"},"modified":"2026-10-09T06:53:31","modified_gmt":"2026-10-09T06:53:31","slug":"lubrication-sun-gears-planetary","status":"publish","type":"post","link":"https:\/\/sun-gears.net\/ur\/lubrication-sun-gears-planetary\/","title":{"rendered":"Lubrication Factors for Sun Gears in Planetary Gearboxes"},"content":{"rendered":"
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KNOWLEDGE<\/div>\n

Lubrication Factors for Sun Gears in Planetary Gearboxes<\/h1>\n

Lubrication protects tooth surfaces, removes heat and carries contamination away; sun-gear speed and stage orientation affect how that oil reaches the mesh.<\/p>\n

Technical Guide<\/span>\u0633\u0648\u0631\u062c \u06af\u06cc\u0626\u0631<\/span>Planetary Gear<\/span><\/div>\n
\u0627\u06cc\u06a9 \u0627\u0642\u062a\u0628\u0627\u0633 \u06a9\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0631\u06cc\u06ba\u06d4<\/a>Knowledge Center<\/a><\/div>\n<\/div>\n
\"Lubrication<\/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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When the issue is lubrication and oil condition, inspect the entire planetary stage before ordering a single replacement. The sun, planets, ring, bearings, carrier and lubrication system share the same load path.<\/p>\n

Damage pattern, oil condition and circumferential repetition can help distinguish overload, alignment, lubrication and surface-fatigue problems.<\/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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A new gear should preserve the approved tooth and interface geometry unless a controlled redesign is intended. Increasing hardness or changing backlash without diagnosing the root cause can create a different failure.<\/p>\n

Record damaged and unworn regions separately when reverse measuring the part.<\/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
\n\n\n\n\n\n\n\n\n\n\n
\u0622\u0626\u0679\u0645<\/th>\nWhat to define<\/th>\n<\/tr>\n<\/thead>\n
\u062f\u0627\u0646\u062a\u0648\u06ba \u06a9\u0627 \u0646\u0638\u0627\u0645<\/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
\u0688\u06cc\u0648\u0679\u06cc<\/td>\nRated\/peak torque, speed, reversals\/shock, life, lubrication and environment.<\/td>\n<\/tr>\n
\u0639\u0645\u0644<\/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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\u0622\u0631 \u0627\u06cc\u0641 \u06a9\u06cc\u0648<\/div>\n

\u0627\u06cc\u06a9 \u0627\u0642\u062a\u0628\u0627\u0633 \u06a9\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0631\u06cc\u06ba \/ RFQ \u0628\u06be\u06cc\u062c\u06cc\u06ba\u06d4<\/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

RFQ \u0628\u06be\u06cc\u062c\u06cc\u06ba\u06d4<\/a><\/div>\n

MOQ<\/strong>\u0645\u0635\u0646\u0648\u0639\u0627\u062a \u06a9\u06cc \u0642\u0633\u0645 \u0627\u0648\u0631 \u06a9\u0644 \u0622\u0631\u0688\u0631 \u06a9\u06cc \u0642\u06cc\u0645\u062a \u06a9\u06d2 \u0644\u062d\u0627\u0638 \u0633\u06d2 \u0644\u0686\u06a9\u062f\u0627\u0631\u06d4<\/span><\/div>
\u0646\u0645\u0648\u0646\u06d2<\/strong>\u062c\u0628 \u062d\u0635\u06c1 \u0627\u0648\u0631 \u0639\u0645\u0644 \u0645\u0648\u0632\u0648\u06ba \u06c1\u0648\u06ba \u062a\u0648 \u0646\u0626\u06d2 \u0635\u0627\u0631\u0641\u06cc\u0646 1-5 \u0679\u06a9\u0691\u0648\u06ba \u06a9\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0631 \u0633\u06a9\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4<\/span><\/div>
\u0645\u0644\u06d2 \u062c\u0644\u06d2 \u0627\u062d\u06a9\u0627\u0645\u0627\u062a<\/strong>\u062c\u0628 \u06a9\u0644 \u200b\u200b\u0622\u0631\u0688\u0631 \u06a9\u06cc \u0642\u06cc\u0645\u062a USD 1,500 \u06cc\u0627 \u0627\u0633 \u0633\u06d2 \u0627\u0648\u067e\u0631 \u06c1\u0648 \u062a\u0648 \u0645\u062e\u062a\u0644\u0641 \u0633\u0648\u0631\u062c \u06af\u06cc\u0626\u0631 \u06cc\u0627 \u0645\u062a\u0639\u0644\u0642\u06c1 \u0633\u06cc\u0627\u0631\u0648\u06ba \u06a9\u06d2 \u0627\u062c\u0632\u0627\u0621 \u06a9\u06d2 \u0645\u0627\u0688\u0644\u0632 \u06a9\u0648 \u06cc\u06a9\u062c\u0627 \u06a9\u06cc\u0627 \u062c\u0627 \u0633\u06a9\u062a\u0627 \u06c1\u06d2\u06d4<\/span><\/div>
\u0686\u06be\u0648\u0679\u06d2 \u0627\u062d\u06a9\u0627\u0645\u0627\u062a<\/strong>1-2 \u0679\u06a9\u0691\u0648\u06ba \u06a9\u06d2 \u0622\u0631\u0688\u0631\u0632 \u067e\u0631 \u0628\u0627\u062a \u06a9\u06cc \u062c\u0627 \u0633\u06a9\u062a\u06cc \u06c1\u06d2\u060c \u0639\u0627\u0645 \u0637\u0648\u0631 \u067e\u0631 \u0632\u06cc\u0627\u062f\u06c1 \u06cc\u0648\u0646\u0679 \u0644\u0627\u06af\u062a \u06a9\u06d2 \u0633\u0627\u062a\u06be\u06d4<\/span><\/div>
\u0688\u06cc\u0644\u06cc\u0648\u0631\u06cc<\/strong>\u0645\u0639\u06cc\u0627\u0631\u06cc \u062d\u0635\u06d2: 10-25 \u06a9\u0627\u0645 \u06a9\u06d2 \u062f\u0646\u06d4 \u0627\u067e\u0646\u06cc \u0645\u0631\u0636\u06cc \u06a9\u06d2 \u0627\u062c\u0632\u0627\u0621: 20-45 \u06a9\u0627\u0645 \u06a9\u06d2 \u062f\u0646\u06d4 \u067e\u0631\u0648\u062c\u06cc\u06a9\u0679 \u06a9\u0627 \u0633\u0627\u0645\u0627\u0646: 45-120 \u06a9\u0627\u0645 \u06a9\u06d2 \u062f\u0646\u06d4<\/span><\/div>
\u062a\u062c\u0627\u0631\u062a\u06cc \u0634\u0631\u0627\u0626\u0637<\/strong>EXW\u060c FOB\u060c CIF \u0627\u0648\u0631 DAP \u0639\u0627\u0645 \u0637\u0648\u0631 \u067e\u0631 \u062a\u0639\u0627\u0648\u0646 \u06cc\u0627\u0641\u062a\u06c1 \u06c1\u06cc\u06ba\u06d4 \u0627\u06cc\u0641 \u0633\u06cc \u0627\u06d2\u060c \u0633\u06cc \u0627\u06cc\u0641 \u0622\u0631\u060c \u0633\u06cc \u067e\u06cc \u0679\u06cc\u060c \u0633\u06cc \u0622\u0626\u06cc \u067e\u06cc \u0627\u0648\u0631 \u0688\u06cc \u0688\u06cc \u067e\u06cc \u06a9\u06cc\u0633 \u06a9\u06d2 \u062d\u0633\u0627\u0628 \u0633\u06d2 \u0628\u062d\u062b \u06a9\u06cc \u062c\u0627 \u0633\u06a9\u062a\u06cc \u06c1\u06d2\u06d4<\/span><\/div><\/div><\/div>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"

Lubrication protects tooth surfaces, removes heat and carries contamination away; sun-gear speed and stage orientation affect how that oil reaches the mesh.<\/p>","protected":false},"author":1,"featured_media":1093,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1082","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sun-gears"],"_links":{"self":[{"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/posts\/1082","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/comments?post=1082"}],"version-history":[{"count":1,"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/posts\/1082\/revisions"}],"predecessor-version":[{"id":1128,"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/posts\/1082\/revisions\/1128"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/media\/1093"}],"wp:attachment":[{"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/media?parent=1082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/categories?post=1082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sun-gears.net\/ur\/wp-json\/wp\/v2\/tags?post=1082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}