{"id":5030,"date":"2026-10-16T03:18:01","date_gmt":"2026-10-16T03:18:01","guid":{"rendered":"http:\/\/merivus.local\/product\/merivus-4125-490kv\/"},"modified":"2026-10-21T14:34:55","modified_gmt":"2026-10-21T14:34:55","slug":"merivus-4125-490kv","status":"publish","type":"product","link":"https:\/\/merivusco.com\/en\/product\/merivus-4125-490kv\/","title":{"rendered":"4125 Brushless Motor 490KV"},"content":{"rendered":"
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MERIVUS \/ 4125<\/p>\n

Product overview<\/h2>\n

4125 490KV brushless motor, weighing 354g including wires, with an overall length of 73.5mm. It features a 6mm shaft and 4-M4 mounting holes. Discuss selection and customization based on frame space, power supply and propulsion requirements.<\/p>\n<\/section>\n

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490KV specification<\/h3>\n

Specified for 6S power. Match the propeller and control system to the requirements of the complete system.<\/p>\n<\/article>\n

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6mm shaft diameter<\/h3>\n

Approx. 50mm outer diameter, 73.5mm overall length and 4-M4 mounting holes.<\/p>\n<\/article>\n

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Mechanical and system integration<\/h3>\n

Discuss project configurations including shaft length, wire routing, mounting geometry and propulsion targets.<\/p>\n<\/article>\n<\/div>\n

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Specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Model<\/th>\n4125<\/td>\n<\/tr>\n
KV rating<\/th>\n490KV<\/td>\n<\/tr>\n
Specified power supply<\/th>\n6S<\/td>\n<\/tr>\n
Weight per motor (including wires)<\/th>\n354.00g<\/td>\n<\/tr>\n
Overall length<\/th>\n73.5mm<\/td>\n<\/tr>\n
Outer diameter (approx.)<\/th>\n\u00d850mm<\/td>\n<\/tr>\n
Shaft diameter<\/th>\n6mm<\/td>\n<\/tr>\n
Mounting holes<\/th>\n4-M4<\/td>\n<\/tr>\n
Slots \/ poles<\/th>\n12N14P<\/td>\n<\/tr>\n
Phase-to-phase resistance (including wires)<\/th>\n16.88m\u03a9<\/td>\n<\/tr>\n
No-load current<\/th>\n2.72A\uff0810V\uff09<\/td>\n<\/tr>\n
Color \/ Package<\/th>\nBlack \/ Supplied in the selected configuration<\/td>\n<\/tr>\n
Test current (100% throttle)<\/th>\n70.48A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Current test conditions: 6S power supply, 490KV, GF 15\u00d78E propeller, 100% throttle and measured voltage of 23.46V. The 70.48A value is the current under these test conditions, not a continuous current rating. Selection must account for the actual power supply, propeller and cooling conditions.<\/p>\n<\/section>\n

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Applications and selection<\/h2>\n

For drone propulsion selection, aircraft development and component supply for bulk projects.<\/p>\n

When requesting a quote, please provide the aircraft model, power supply, intended propeller, available mounting space and target operating conditions so we can assess the motor, ESC and propeller together. Before assembly, check mounting holes, fasteners and electrical connections.<\/p>\n<\/section>\n

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Supply and customization<\/h2>\n

Supplied in the selected configuration: a single unit or a pack of 4. A quantity of 1 means one of the selected configurations. Specifications, weight and propulsion test data refer to a single motor, not the packaged weight of a set. ESCs, propellers and other supporting components must be selected separately.<\/p>\n

Project discussions can cover shaft length, mounting geometry, wire routing, KV and propulsion targets, color and appearance, and protective measures. The scope, cost and lead time for selection support, samples, integration tuning and volume supply are subject to the solution agreed by both parties.<\/p>\n

Discuss Selection & Pricing \u2192<\/span><\/a><\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

4125 490KV brushless motor, weighing 354g including wires, with an overall length of 73.5mm. It features a 6mm shaft and 4-M4 mounting holes. Discuss selection and customization based on frame space, power supply and propulsion requirements.<\/p>","protected":false},"featured_media":5029,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":""},"product_brand":[],"product_cat":[42],"product_tag":[],"class_list":["post-5030","product","type-product","status-publish","has-post-thumbnail","product_cat-merivus-brushless-motors","first","instock","taxable","shipping-taxable","purchasable","product-type-variable","has-default-attributes"],"uagb_featured_image_src":{"full":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV.webp",1254,1254,false],"thumbnail":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV-150x150.webp",150,150,true],"medium":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV-300x300.webp",300,300,true],"medium_large":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV-768x768.webp",768,768,true],"large":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV-1024x1024.webp",1024,1024,true],"1536x1536":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV.webp",1254,1254,false],"2048x2048":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV.webp",1254,1254,false],"trp-custom-language-flag":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV.webp",12,12,false],"woocommerce_thumbnail":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV-300x300.webp",300,300,true],"woocommerce_single":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV-600x600.webp",600,600,true],"woocommerce_gallery_thumbnail":["https:\/\/merivusco.com\/wp-content\/uploads\/2026\/10\/merivus-motor-4125-490KV-100x100.webp",100,100,true]},"uagb_author_info":{"display_name":"","author_link":"https:\/\/merivusco.com\/en\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"4125 490KV \u65e0\u5237\u7535\u673a\uff0c\u542b\u7ebf\u91cd\u91cf 354g\uff0c\u603b\u957f 73.5mm\u3002\u91c7\u7528 6mm \u8f74\u5f84\u4e0e 4-M4 \u5b89\u88c5\u5b54…","_links":{"self":[{"href":"https:\/\/merivusco.com\/en\/wp-json\/wp\/v2\/product\/5030","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/merivusco.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/merivusco.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/merivusco.com\/en\/wp-json\/wp\/v2\/comments?post=5030"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/merivusco.com\/en\/wp-json\/wp\/v2\/media\/5029"}],"wp:attachment":[{"href":"https:\/\/merivusco.com\/en\/wp-json\/wp\/v2\/media?parent=5030"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/merivusco.com\/en\/wp-json\/wp\/v2\/product_brand?post=5030"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/merivusco.com\/en\/wp-json\/wp\/v2\/product_cat?post=5030"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/merivusco.com\/en\/wp-json\/wp\/v2\/product_tag?post=5030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}