{"product_id":"gm37by-2-phase-4-wire-brushless-stepper-gear-motor","title":"GM37BY 2-Phase 4-Wire Brushless Stepper Gear Motor","description":"\u003ch3\u003e1:630 High Torque Stepper Gear Motor, DC 12V, 0.8 RPM, for Robotics\u003c\/h3\u003e\n\u003ch3\u003e1:6.3 High Speed Stepper Motor, DC 24V, 119 RPM, for Automation Projects\u003c\/h3\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nThe \u003cstrong\u003eCHS-GM37BY brushless stepper gear motor\u003c\/strong\u003e is a compact, high-precision 2-phase 4-wire motor designed for applications requiring precise position control and variable torque\/speed. With multiple gear ratios, wide voltage compatibility, and optional accessories, it’s ideal for robotics, smart home devices, and automation projects.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility\u003c\/strong\u003e: Supports DC 3.7-24V operation, with optimized performance at 12V and 24V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Gear Ratios\u003c\/strong\u003e: Choose from 1:6.3 to 1:630 to customize speed and torque for your project (e.g., 119 RPM at 1:6.3 \/ 0.8 RPM at 1:630, 24V).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Stepper Control\u003c\/strong\u003e: 2-phase 4-wire bipolar drive with a 7.5° step angle, compatible with standard stepper drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction\u003c\/strong\u003e: Metal gearbox for reliable performance, with a maximum allowable holding torque of 30 kgf·cm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional Accessories\u003c\/strong\u003e: Available with a mounting bracket or control driver for easy integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eSpecifications (CHS-GM37BY)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eModel: CHS-GM37BY\u003c\/li\u003e\n\u003cli\u003eBrand: ChiHai Motor\u003c\/li\u003e\n\u003cli\u003eRated Voltage: DC 12V (supports 3.7-24V)\u003c\/li\u003e\n\u003cli\u003eMotor Type: 2-Phase 4-Wire Bipolar Brushless Stepper Motor\u003c\/li\u003e\n\u003cli\u003ePhase Resistance: 30±15% Ω\/Phase\u003c\/li\u003e\n\u003cli\u003eStep Angle: 7.5°\/Step\u003c\/li\u003e\n\u003cli\u003eGear Ratios: 1:6.3, 1:10, 1:18.8, 1:30, 1:50, 1:90, 1:150, 1:270, 1:450, 1:630\u003c\/li\u003e\n\u003cli\u003eOutput Shaft: D-shaped shaft (21mm total length, 12mm D-cut)\u003c\/li\u003e\n\u003cli\u003eWeight: 165-200g\u003c\/li\u003e\n\u003cli\u003eWiring: Yellow A+, Green A-, Red B-, Black B+\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -10 ~ +55℃\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eAvailable Configurations\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eMotor Only\u003c\/li\u003e\n\u003cli\u003eMotor + Mounting Bracket\u003c\/li\u003e\n\u003cli\u003eMotor + Control Driver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eApplications\u003c\/strong\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nPerfect for smart robots, automated equipment, camera focus systems, smart home devices, and other projects requiring precise, variable-speed motion control.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003ch3\u003eDATA SHEET\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eAttribute\u003c\/th\u003e\n\u003cth align=\"left\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eBrushless Stepper Gear Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eModel\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eCHS-GM37BY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eBrand\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eChiHai Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eDC 12V (3.7-24V compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eMotor Type\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e2-Phase 4-Wire Bipolar Stepper Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eGear Ratios\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e1:6.3 to 1:630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eStep Angle\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e7.5°\/Step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eOutput Shaft\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eD-shaped shaft, 21mm length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eWeight\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e165-200g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eMounting bracket, control driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eApplications\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eSmart Robots, Automation Equipment, Camera Focus Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMotor Dimension\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0583\/0872\/2881\/files\/4a7a9004c068615d2de5c30d0da635b5_cbfb2a8d-ef79-4425-9043-2e1376b3f44c.jpg?v=1778733866\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0583\/0872\/2881\/files\/22_353930c9-83c9-4a01-b36a-a399e4953960.jpg?v=1778733874\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0583\/0872\/2881\/files\/33_e9ecc50b-24aa-4022-bdde-9109a64b5873.jpg?v=1778733882\" alt=\"\"\u003e\u003c\/p\u003e","brand":"electrical center b2c","offers":[{"title":"37BY Motor \/ Reduction Ratio 1:6.3","offer_id":50212794990785,"sku":"37BY Motor \/ Reduction Ratio 1:6.3","price":64.0,"currency_code":"NZD","in_stock":true},{"title":"37BY Motor \/ Reduction Ratio 1:10","offer_id":50212795023553,"sku":"37BY Motor \/ Reduction Ratio 1:10","price":64.0,"currency_code":"NZD","in_stock":true},{"title":"37BY Motor \/ Reduction Ratio 1:18.8","offer_id":50212795056321,"sku":"37BY Motor \/ Reduction Ratio 1:18.8","price":64.0,"currency_code":"NZD","in_stock":true},{"title":"37BY Motor \/ Reduction Ratio 1:30","offer_id":50212795089089,"sku":"37BY Motor \/ Reduction Ratio 1:30","price":64.0,"currency_code":"NZD","in_stock":true},{"title":"37BY Motor \/ Reduction Ratio 1:50","offer_id":50212795121857,"sku":"37BY Motor \/ Reduction Ratio 1:50","price":64.0,"currency_code":"NZD","in_stock":true},{"title":"37BY Motor \/ Reduction Ratio 1:90","offer_id":50212795154625,"sku":"37BY Motor \/ Reduction Ratio 1:90","price":64.0,"currency_code":"NZD","in_stock":true},{"title":"37BY Motor \/ 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