{"id":1434,"date":"2026-09-11T08:14:52","date_gmt":"2026-09-11T08:14:52","guid":{"rendered":"https:\/\/injection-molded-parts.com\/product\/plastic-internal-ring-gears\/"},"modified":"2026-09-14T07:54:47","modified_gmt":"2026-09-14T07:54:47","slug":"plastic-internal-ring-gears","status":"publish","type":"product","link":"https:\/\/injection-molded-parts.com\/zh-cn\/product\/plastic-internal-ring-gears\/","title":{"rendered":"Plastic Internal Ring Gears"},"content":{"rendered":"
\n

Internal-tooth ring gear \/ annulus<\/h2>\n

Internal ring gears are used in planetary sets and compact reducers. Tooth geometry, pitch-circle concentricity, wall stiffness and the mounting datum work together to control the mesh.<\/p>\n

Internal teeth can complicate tooling and inspection access. For machined rings, clamping strategy matters because the ring may spring when released. For molded rings, gate balance and wall thickness affect roundness. The drawing should state which outer or face datum represents the installed condition.<\/p>\n<\/section>\n

\n

How to read the product image<\/h2>\n

The main image is a representative technical redraw because the available raster source could not be enlarged without losing tooth-edge definition. It is used to communicate the product family and mechanical topology only. Tooth count, pitch\/module, bore, hub, chain interface, material and all production dimensions are controlled by the released drawing.<\/p>\n<\/section>\n

\n

Geometry and interface inputs for Plastic Internal Ring Gears<\/h2>\n
    \n
  • Internal tooth count, module\/DP and pressure angle<\/li>\n
  • Mating pinion or planet geometry<\/li>\n
  • Bore\/outer datum and tooth concentricity<\/li>\n
  • Wall thickness, flange and mounting features<\/li>\n
  • Runout and backlash targets<\/li>\n<\/ul>\n

    \u51e0\u4f55\u53c2\u8003\uff1a<\/strong> Internal ring gear \/ annulus<\/p>\n<\/section>\n

    \n

    \u9009\u62e9\u751f\u4ea7\u8def\u7ebf<\/h2>\n

    Large ring gears may be machined from engineering plastic stock while smaller\/high-volume geometries may be considered for molding. Geometry and material availability decide the practical route.<\/p>\n

    \u6253\u5305\u6d41\u7a0b\u53c2\u8003\uff1a<\/strong> Machined configuration documented; molding route requires project confirmation<\/p>\n

    \u6750\u6599\u65b9\u5411\uff1a<\/strong> POM-C and nylon options depend on the selected configuration<\/p>\n<\/section>\n

    \"Plastic<\/figure>\n
    \n

    \u5e94\u7528\u7279\u5b9a\u8bbe\u8ba1\u8bc4\u5ba1<\/h2>\n

    Thin rings can distort during machining, molding or clamping. A weak datum scheme can also make tooth runout difficult to interpret.<\/p>\n

    \u5178\u578b\u7528\u9014\uff1a<\/strong> Planetary reducers, indexing mechanisms and enclosed transmission assemblies. The final material and tolerance plan should be checked against the load path, mating components and environment in that assembly.<\/p>\n<\/section>\n

    \n

    \u9996\u6b21\u62bd\u6837\u548c\u68c0\u9a8c\u91cd\u70b9<\/h2>\n

    Measure the ring in a condition that represents assembly support. Confirm tooth-related runout and key mounting dimensions from the same functional datum structure.<\/p>\n

    \u62a5\u4ef7\u51b3\u5b9a\uff1a<\/strong> Concentricity, tooth count, module, mating pinion or planet set, bore, wall thickness and mounting interface control the fit.<\/p>\n<\/section>\n

    \"Plastic<\/figure>\n
    \n

    What to send for a Plastic Internal Ring Gears quotation<\/h2>\n

    \u8bf7\u63d0\u4f9b\u6700\u65b0\u7684\u56fe\u7eb8\u6216CAD\u6a21\u578b\uff0c\u5e76\u6ce8\u660e\u751f\u4ea7\u6570\u91cf\u4ee5\u53ca\u5f71\u54cd\u914d\u5408\u3001\u78e8\u635f\u6216\u5c3a\u5bf8\u7a33\u5b9a\u6027\u7684\u5e94\u7528\u6761\u4ef6\u3002\u5982\u679c\u8be5\u96f6\u4ef6\u7528\u4e8e\u66ff\u6362\u73b0\u6709\u7ec4\u4ef6\uff0c\u8bf7\u660e\u786e\u54ea\u4e9b\u7279\u5f81\u5fc5\u987b\u4fdd\u6301\u4e92\u6362\u6027\uff0c\u4ee5\u53ca\u65b0\u96f6\u4ef6\u65e8\u5728\u89e3\u51b3\u7684\u4efb\u4f55\u5df2\u77e5\u73b0\u573a\u95ee\u9898\u3002<\/p>\n

      \n
    • \u53ef\u63a7\u7684\u56fe\u7eb8\u4fee\u6539\u548c3D\u6a21\u578b\uff08\u5982\u6709\uff09<\/li>\n
    • \u914d\u5408\u90e8\u4ef6\u6216\u4f20\u52a8\u51e0\u4f55<\/li>\n
    • \u7269\u6599\u9700\u6c42\u6216\u670d\u52a1\u73af\u5883<\/li>\n
    • \u6837\u54c1\u6570\u91cf\u3001\u751f\u4ea7\u6279\u6b21\u548c\u9884\u8ba1\u5e74\u9700\u6c42<\/li>\n
    • \u5173\u952e\u5c3a\u5bf8\u548c\u529f\u80fd\u9a8c\u6536\u65b9\u6cd5<\/li>\n<\/ul>\n<\/section>\n
      \n

      \u5236\u9020\u524d\u9700\u786e\u5b9a\u5de5\u7a0b\u89c4\u8303<\/h2>\n

      \u751f\u4ea7\u56fe\u7eb8\u5e94\u5c06\u5e94\u7528\u8f6c\u5316\u4e3a\u53ef\u8861\u91cf\u7684\u8f93\u5165\u3002\u4e0b\u8868\u5217\u51fa\u4e86\u8be5\u4ea7\u54c1\u7cfb\u5217\u7684\u6700\u4f4e\u5ba1\u6838\u8981\u6c42\uff1b\u5982\u6709\u4efb\u4f55\u88c5\u914d\u76f8\u5173\u7684\u57fa\u51c6\u3001\u8868\u9762\u5904\u7406\u6216\u9a8c\u6536\u8981\u6c42\u4f1a\u6539\u53d8\u529f\u80fd\uff0c\u8bf7\u6dfb\u52a0\u8fd9\u4e9b\u8981\u6c42\u3002<\/p>\n

      \n\n\n\n\n\n\n\n\n\n\n\n\n
      \u5b9a\u4e49<\/th>\n\u4f9b\u5e94\u5546\u9700\u8981\u4ec0\u4e48<\/th>\n<\/tr>\n<\/thead>\n
      Internal tooth count<\/td>\n\u8bf7\u5728\u6700\u65b0\u56fe\u7eb8\u4e0a\u6807\u660e\u6570\u503c\u3001\u516c\u5dee\u6216\u529f\u80fd\u8981\u6c42\u3002<\/td>\n<\/tr>\n
      Module or DP<\/td>\n\u8bf7\u5728\u6700\u65b0\u56fe\u7eb8\u4e0a\u6807\u660e\u6570\u503c\u3001\u516c\u5dee\u6216\u529f\u80fd\u8981\u6c42\u3002<\/td>\n<\/tr>\n
      Pressure angle<\/td>\n\u8bf7\u5728\u6700\u65b0\u56fe\u7eb8\u4e0a\u6807\u660e\u6570\u503c\u3001\u516c\u5dee\u6216\u529f\u80fd\u8981\u6c42\u3002<\/td>\n<\/tr>\n
      Mating pinion or planet set<\/td>\n\u8bf7\u5728\u6700\u65b0\u56fe\u7eb8\u4e0a\u6807\u660e\u6570\u503c\u3001\u516c\u5dee\u6216\u529f\u80fd\u8981\u6c42\u3002<\/td>\n<\/tr>\n
      Ring OD \/ wall section<\/td>\n\u8bf7\u5728\u6700\u65b0\u56fe\u7eb8\u4e0a\u6807\u660e\u6570\u503c\u3001\u516c\u5dee\u6216\u529f\u80fd\u8981\u6c42\u3002<\/td>\n<\/tr>\n
      Mounting datum<\/td>\n\u8bf7\u5728\u6700\u65b0\u56fe\u7eb8\u4e0a\u6807\u660e\u6570\u503c\u3001\u516c\u5dee\u6216\u529f\u80fd\u8981\u6c42\u3002<\/td>\n<\/tr>\n
      Tooth-to-mount runout<\/td>\n\u8bf7\u5728\u6700\u65b0\u56fe\u7eb8\u4e0a\u6807\u660e\u6570\u503c\u3001\u516c\u5dee\u6216\u529f\u80fd\u8981\u6c42\u3002<\/td>\n<\/tr>\n
      Backlash and carrier relationship<\/td>\n\u8bf7\u5728\u6700\u65b0\u56fe\u7eb8\u4e0a\u6807\u660e\u6570\u503c\u3001\u516c\u5dee\u6216\u529f\u80fd\u8981\u6c42\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
      \n

      \u8bbe\u8ba1\u8bc4\u5ba1\u671f\u95f4\u9700\u8981\u9884\u9632\u7684\u5931\u6548\u6a21\u5f0f<\/h2>\n

      Common risks for this geometry include ring distortion during clamping; tooth-to-mount eccentricity; unequal planet loading when carrier centers do not match the annulus. These are best addressed before the first sample by reviewing the complete mating interface, not by tightening every drawing tolerance.<\/p>\n

      \u5e94\u6709\u9009\u62e9\u5730\u4f7f\u7528\u516c\u5dee\u3002\u51b3\u5b9a\u9f7f\u8f6e\u556e\u5408\u3001\u94fe\u6761\u556e\u5408\u3001\u8f74\u914d\u5408\u6216\u88c5\u914d\u57fa\u51c6\u7684\u5c3a\u5bf8\u9700\u8981\u660e\u786e\u7684\u6d4b\u91cf\u65b9\u6cd5\uff1b\u975e\u5173\u952e\u7684\u6a21\u5851\u8868\u9762\u901a\u5e38\u53ef\u4ee5\u4f7f\u7528\u66f4\u5b9e\u7528\u7684\u901a\u7528\u516c\u5dee\u3002<\/p>\n<\/section>\n

      \n

      \u9996\u4ef6\u9a8c\u6536\u548c\u751f\u4ea7\u9a8c\u6536<\/h2>\n

      \u62bd\u6837\u524d\uff0c\u5e94\u5148\u786e\u5b9a\u68c0\u9a8c\u6761\u4ef6\u3001\u57fa\u51c6\u548c\u6d4b\u91cf\u65b9\u6cd5\u3002\u9996\u4ef6\u68c0\u9a8c\u62a5\u544a\u5e94\u6db5\u76d6\u56fe\u7eb8\u7684\u5173\u952e\u8d28\u91cf\u7279\u6027\uff08CTQ\uff09\uff0c\u5e76\u7ed3\u5408\u5b9e\u9645\u88c5\u914d\u6216\u4ee3\u8868\u6027\u5939\u5177\u8fdb\u884c\u529f\u80fd\u6027\u68c0\u67e5\u3002\u5bf9\u4e8e\u9f7f\u8f6e\u548c\u94fe\u8f6e\uff0c\u68c0\u67e5\u5185\u5bb9\u53ef\u5305\u62ec\u556e\u5408\u6216\u94fe\u6761\u556e\u5408\u3001\u8df3\u52a8\u548c\u5b54\u5f84\u5173\u7cfb\uff1b\u5bf9\u4e8e\u5b9a\u5236\u6a21\u5236\u96f6\u4ef6\uff0c\u68c0\u67e5\u5185\u5bb9\u53ef\u5305\u62ec\u914d\u5408\u3001\u7d27\u56fa\u548c\u8f7d\u8377\u7279\u5f81\u3002<\/p>\n

      \u751f\u4ea7\u63a7\u5236\u5e94\u9075\u5faa\u76f8\u540c\u7684\u5173\u952e\u8d28\u91cf\u7279\u6027\uff08CTQ\uff09\uff0c\u800c\u4e0d\u662f\u7528\u4e00\u957f\u4e32\u6613\u4e8e\u6d4b\u91cf\u7684\u5916\u89c2\u5c3a\u5bf8\u6e05\u5355\u6765\u53d6\u4ee3\u5b83\u4eec\u3002\u5982\u679c\u5b54\u3001\u9f7f\u3001\u5d4c\u4ef6\u6216\u5b89\u88c5\u9762\u9700\u8981\u8fdb\u884c\u4e8c\u6b21\u52a0\u5de5\uff0c\u5219\u5e94\u660e\u786e\u6307\u51fa\u54ea\u9053\u5de5\u5e8f\u786e\u7acb\u4e86\u6700\u7ec8\u57fa\u51c6\u3002<\/p>\n<\/section>\n

      \n

      Engineering decision brief for Plastic Internal Ring Gears<\/h2>\n
      \n
      01<\/span><\/p>\n

      Define the geometry<\/h3>\n

      Internal ring gear \/ annulus The quotation should use the drawing revision and mating interface as the controlling definition rather than an image alone.<\/p>\n<\/article>\n

      02<\/span><\/p>\n

      Choose material by duty<\/h3>\n

      POM-C and nylon options depend on the selected configuration Material selection should be checked against load, speed, temperature, moisture or chemicals, lubrication and the required dimensional condition.<\/p>\n<\/article>\n

      03<\/span><\/p>\n

      Freeze the production route<\/h3>\n

      Machined configuration documented; molding route requires project confirmation The route should be fixed only after quantity, tolerances, surface requirements and change risk are understood.<\/p>\n<\/article>\n

      04<\/span><\/p>\n

      Agree acceptance<\/h3>\n

      Concentricity, tooth count, module, mating pinion or planet set, bore, wall thickness and mounting interface control the fit. First-article checks should therefore focus on the dimensions and functional interfaces that control the assembly.<\/p>\n<\/article>\n<\/div>\n

      Typical application context:<\/strong> Planetary sets, compact reducers, indexing mechanisms and enclosed transmissions where an internal tooth form is needed.<\/p>\n<\/section>\n

      \n

      Plastic Internal Ring Gears FAQ<\/h2>\n
      \n
      \n

      \u6211\u5e94\u8be5\u63d0\u4f9b\u54ea\u4e9b\u8d44\u6599\u8fdb\u884c\u62a5\u4ef7\uff1f<\/h3>\n

      \u8bf7\u53d1\u9001\u6700\u65b0\u7684\u4e8c\u7ef4\u56fe\u7eb8\uff0c\u5982\u6709\u4e09\u7ef4\u6a21\u578b\uff0c\u4e5f\u8bf7\u4e00\u5e76\u53d1\u9001\u3002\u8bf7\u63d0\u4f9b\u914d\u5408\u96f6\u4ef6\u4fe1\u606f\u3001\u8ba2\u8d2d\u6570\u91cf\u3001\u4f7f\u7528\u6761\u4ef6\u4ee5\u53ca\u63a7\u5236\u914d\u5408\u6216\u8fd0\u52a8\u7684\u7279\u5f81\u3002\u5bf9\u4e8e\u51e0\u4f55\u5f62\u72b6\u4e0d\u786e\u5b9a\u7684\u65e7\u96f6\u4ef6\uff0c\u63d0\u4f9b\u6837\u54c1\u4f1a\u5f88\u6709\u5e2e\u52a9\u3002<\/p>\n<\/article>\n

      \n

      \u6750\u6599\u5e94\u8be5\u5982\u4f55\u6307\u5b9a\uff1f<\/h3>\n

      \u5bf9\u4e8e\u805a\u7532\u919b\uff08POM\uff09\u6216\u5c3c\u9f99\u9879\u76ee\uff0c\u4ec5\u51ed\u6750\u6599\u7cfb\u5217\u4fe1\u606f\u662f\u4e0d\u591f\u7684\u3002\u5728\u5fc5\u987b\u7684\u60c5\u51b5\u4e0b\uff0c\u52a1\u5fc5\u786e\u8ba4\u5b9e\u9645\u7b49\u7ea7\uff0c\u5e76\u8bf4\u660e\u6e7f\u5ea6\u3001\u6e29\u5ea6\u3001\u6da6\u6ed1\u5242\u548c\u914d\u5408\u6750\u6599\u7b49\u6761\u4ef6\uff0c\u4ee5\u4fbf\u8bc4\u4f30\u5c3a\u5bf8\u548c\u78e8\u635f\u6027\u80fd\u3002<\/p>\n<\/article>\n

      \n

      \u7b2c\u4e00\u4e2a\u6837\u54c1\u5982\u4f55\u83b7\u5f97\u6279\u51c6\uff1f<\/h3>\n

      \u5728\u751f\u4ea7\u6837\u54c1\u4e4b\u524d\uff0c\u5e94\u660e\u786e\u5173\u952e\u8d28\u91cf\u7279\u6027\uff08CTQ\uff09\u3001\u68c0\u9a8c\u72b6\u6001\u548c\u529f\u80fd\u6d4b\u8bd5\u3002\u5ba1\u6279\u6d41\u7a0b\u5e94\u786e\u8ba4\u53ef\u6d4b\u91cf\u7684\u51e0\u4f55\u5f62\u72b6\u4ee5\u53ca\u96f6\u4ef6\u5728\u5176\u9884\u671f\u63a5\u53e3\u4e2d\u7684\u6027\u80fd\u3002<\/p>\n<\/article>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"

      Plastic internal ring gears for compact coaxial mechanisms, with internal tooth form, concentricity, mating pinion or planet geometry, wall section and molded distortion controlled together.<\/p>","protected":false},"featured_media":1324,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[2581],"product_tag":[],"class_list":["post-1434","product","type-product","status-publish","has-post-thumbnail","product_cat-plastic-internal-gears","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/product\/1434","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/comments?post=1434"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/media\/1324"}],"wp:attachment":[{"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/media?parent=1434"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/product_cat?post=1434"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/product_tag?post=1434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}