{"id":1438,"date":"2026-09-11T08:15:01","date_gmt":"2026-09-11T08:15:01","guid":{"rendered":"https:\/\/injection-molded-parts.com\/product\/plastic-spur-gears\/"},"modified":"2026-09-14T07:55:02","modified_gmt":"2026-09-14T07:55:02","slug":"plastic-spur-gears","status":"publish","type":"product","link":"https:\/\/injection-molded-parts.com\/zh-cn\/product\/plastic-spur-gears\/","title":{"rendered":"\u5851\u6599\u6b63\u9f7f\u8f6e"},"content":{"rendered":"
\n

Parallel-shaft spur gear<\/h2>\n

Spur gears are a direct choice for many parallel-shaft mechanisms. Working performance still depends on center distance, bore\/shaft accuracy, mating gear, material, face width and backlash.<\/p>\n

A press-fit bore can expand the hub and subtly change tooth runout or root stress. When the hub is relatively thin, the shaft fit should be reviewed together with the gear material and molding history. If a keyed or D-shaped bore is used, show the torque path rather than specifying bore size alone.<\/p>\n<\/section>\n

\n

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

The main image is a photograph of a physical sample or representative component, not a dimensional definition. Resin colour, tooth count, bore or hub features, rack length, inserts and other details can change with the released drawing. Use the photograph to understand the product family; use the controlled drawing, mating interface and agreed inspection plan to manufacture and approve the part.<\/p>\n<\/section>\n

\n

Geometry and interface inputs for Plastic Spur Gears<\/h2>\n
    \n
  • Tooth count, module\/DP and pressure angle<\/li>\n
  • Face width and outside diameter limits<\/li>\n
  • Bore, hub, keyway or press-fit details<\/li>\n
  • Mating gear and center distance<\/li>\n
  • Speed, load, duty and noise target<\/li>\n<\/ul>\n

    \u51e0\u4f55\u53c2\u8003\uff1a<\/strong> Straight-tooth parallel-axis gear<\/p>\n<\/section>\n

    \n

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

    Spur gears can be injection molded for repeat volumes or machined for lower-volume, larger or material-specific projects. Secondary bore or datum machining may be considered when the assembly requires it.<\/p>\n

    \u6253\u5305\u6d41\u7a0b\u53c2\u8003\uff1a<\/strong> Molded and machined plastic spur gears are separate routes<\/p>\n

    \u6750\u6599\u65b9\u5411\uff1a<\/strong> POM, nylon and other engineering polymers by requirement<\/p>\n<\/section>\n

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

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

    Tight center distance, excessive press fit, shaft runout or thermal\/moisture growth can reduce working backlash and increase noise or wear.<\/p>\n

    \u5178\u578b\u7528\u9014\uff1a<\/strong> Printers, appliances, packaging mechanisms, automation and general compact drives. 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

    Use drawing-defined gear measurements together with bore\/runout checks. An assembled roll or functional mesh check may reveal issues not visible from a single diameter measurement.<\/p>\n

    \u62a5\u4ef7\u51b3\u5b9a\uff1a<\/strong> Module or DP, tooth count, pressure angle, bore, hub, face width, mating center distance and backlash define the core configuration.<\/p>\n<\/section>\n

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

    What to send for a Plastic Spur 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
      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
      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
      Face width<\/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
      Bore \/ key \/ D-flat<\/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
      Hub geometry<\/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 center distance<\/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
      Torque, speed and working backlash<\/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 insufficient working backlash; bore-induced runout; hub\/root stress from aggressive press fit. 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 Spur Gears<\/h2>\n
      \n
      01<\/span><\/p>\n

      Define the geometry<\/h3>\n

      Straight-tooth parallel-axis gear 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, nylon and other engineering polymers by requirement 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

      Molded and machined plastic spur gears are separate routes 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

      Module or DP, tooth count, pressure angle, bore, hub, face width, mating center distance and backlash define the core configuration. 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> Packaging, conveyors, office equipment, instruments, small machinery and custom electromechanical assemblies.<\/p>\n<\/section>\n

      \n

      Plastic Spur 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":"

      Straight-tooth plastic spur gears for parallel-shaft drives, with module or DP, pressure angle, tooth count, face width, bore\/hub geometry, mate and backlash defined before quotation.<\/p>","protected":false},"featured_media":1328,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[2578],"product_tag":[],"class_list":["post-1438","product","type-product","status-publish","has-post-thumbnail","product_cat-plastic-spur-gears","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/product\/1438","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=1438"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/media\/1328"}],"wp:attachment":[{"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/media?parent=1438"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/product_cat?post=1438"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/injection-molded-parts.com\/zh-cn\/wp-json\/wp\/v2\/product_tag?post=1438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}