{"product_id":"chihai-chs-gm12-10by-m4-threaded-shaft-stepper-motor","title":"CHIHAI CHS-GM12-10BY M4 Threaded-Shaft Geared Stepper Motor, 55 mm","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe \u003ca class=\"tophitek-context-link\" href=\"https:\/\/rcdrone.top\/collections\/chihai-motor\/\" style=\"font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:0.15em;\"\u003eCHIHAI MOTOR\u003c\/a\u003e CHS-GM12-10BY is a miniature \u003ca href=\"https:\/\/rcdrone.top\/collections\/electric-motors\"\u003egeared stepper motor\u003c\/a\u003e with a 55 mm M4 threaded output shaft. Choose a real reduction ratio and a motor-only, flange-nut, open-driver or enclosed-driver package for compact rotary positioning mechanisms.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTwo-phase, four-wire step control with a metal reduction gear train.\u003c\/li\u003e\n\u003cli\u003eM4-0.7 threaded shaft with an optional matching flange nut.\u003c\/li\u003e\n\u003cli\u003eFive selectable ratios and package-specific driver choices.\u003c\/li\u003e\n\u003cli\u003eAttached four-wire lead and miniature connector.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand \/ model\u003c\/td\u003e\n\u003ctd\u003eCHIHAI MOTOR \/ CHS-GM12-10BY, 55 mm M4 threaded shaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor structure\u003c\/td\u003e\n\u003ctd\u003eTwo-phase, four-wire permanent-magnet geared stepper; all-metal gear train\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRetail ratios\u003c\/td\u003e\n\u003ctd\u003e10:1, 30:1, 50:1, 100:1 and 298:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput shaft\u003c\/td\u003e\n\u003ctd\u003eM4-0.7 thread, 55.0 mm projection; 0.7 mm thread pitch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical envelope\u003c\/td\u003e\n\u003ctd\u003e10 × 12 mm front reference; 9 mm mounting-hole spacing; 2 × M1.6 holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrawing dimensions\u003c\/td\u003e\n\u003ctd\u003e9 mm front gearbox reference, 10.5 ±0.2 mm motor section, 6.0 mm rear reference, 0.7 mm shoulder and 1.0 mm feature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable \/ connector\u003c\/td\u003e\n\u003ctd\u003e75 ±10 mm lead; UL1571 AWG30; 51021-0400 single-row white housing; 1.25 mm pitch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor net mass reference\u003c\/td\u003e\n\u003ctd\u003eApproximately 14 g; varies with ratio. This is not packaged shipping mass.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical parameter reference\u003c\/td\u003e\n\u003ctd\u003e5.0 V DC with driver IC 6219; 128 mA per phase; 39 Ω ±7% per phase; 14.3 mH per phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating guidance\u003c\/td\u003e\n\u003ctd\u003e5–12 V application range with a compatible current-controlled stepper driver; motor winding limits and controller supply limits are different\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum gearbox torque\u003c\/td\u003e\n\u003ctd\u003e3.0 kgf·cm rotational limit; not axial thrust or a continuous torque promise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eRatio and Torque Reference\u003c\/h2\u003e\u003cp\u003eThe following table uses the 5 V \/ IC 6219 electrical reference. The selectable 10:1 version has no corresponding row here; do not apply another ratio's torque or step angle to it.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eNominal ratio :1\u003c\/th\u003e\n\u003cth\u003eExact ratio\u003c\/th\u003e\n\u003cth\u003eOutput step angle °\u003c\/th\u003e\n\u003cth\u003eHolding kgf·cm\u003c\/th\u003e\n\u003cth\u003ePull-out kgf·cm\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e29.47\u003c\/td\u003e\n\u003ctd\u003e0.61\u003c\/td\u003e\n\u003ctd\u003e0.36\u003c\/td\u003e\n\u003ctd\u003e0.09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e51.1\u003c\/td\u003e\n\u003ctd\u003e0.35\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e0.15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e99.3\u003c\/td\u003e\n\u003ctd\u003e0.18\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e0.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e298\u003c\/td\u003e\n\u003ctd\u003e297.9\u003c\/td\u003e\n\u003ctd\u003e0.06\u003c\/td\u003e\n\u003ctd\u003eNot separately specified\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eHolding torque and pull-out torque describe different conditions. The maximum gearbox torque is 3.0 kgf·cm. Frequency labels give self-starting more than 1200 PPS and response more than 900 PPS; these differently labeled figures do not establish a reliable guaranteed ceiling. Set starting frequency and acceleration for the actual load and driver.\u003c\/p\u003e\u003ch2\u003eMotor Input Frequency and Current Reference\u003c\/h2\u003e\u003cp\u003eThese separate full-step test references use a 39 Ω motor. Frequencies and rpm refer to the motor input before reduction; divide motor rpm by the exact gear ratio for an output-speed reference. Higher frequency reduces available torque. Choose an operating point without marked resonance; low-voltage references do not override the main model's driver and current requirements.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTest supply\u003c\/th\u003e\n\u003cth\u003eHigh Hz\u003c\/th\u003e\n\u003cth\u003eMotor rpm at high Hz\u003c\/th\u003e\n\u003cth\u003eCurrent at high Hz\u003c\/th\u003e\n\u003cth\u003eLow Hz\u003c\/th\u003e\n\u003cth\u003eMotor rpm at low Hz\u003c\/th\u003e\n\u003cth\u003eCurrent at low Hz\u003c\/th\u003e\n\u003cth\u003eLocked-phase current, 0 Hz\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.0 V\u003c\/td\u003e\n\u003ctd\u003e1400\u003c\/td\u003e\n\u003ctd\u003e4200\u003c\/td\u003e\n\u003ctd\u003e≤0.12 A\u003c\/td\u003e\n\u003ctd\u003e800\u003c\/td\u003e\n\u003ctd\u003e2400\u003c\/td\u003e\n\u003ctd\u003e≤0.18 A\u003c\/td\u003e\n\u003ctd\u003e≤0.30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.0 V\u003c\/td\u003e\n\u003ctd\u003e1300\u003c\/td\u003e\n\u003ctd\u003e3900\u003c\/td\u003e\n\u003ctd\u003e≤0.085 A\u003c\/td\u003e\n\u003ctd\u003e700\u003c\/td\u003e\n\u003ctd\u003e2100\u003c\/td\u003e\n\u003ctd\u003e≤0.155 A\u003c\/td\u003e\n\u003ctd\u003e≤0.25 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.7 V\u003c\/td\u003e\n\u003ctd\u003e800\u003c\/td\u003e\n\u003ctd\u003e2400\u003c\/td\u003e\n\u003ctd\u003e≤0.085 A\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003ctd\u003e1500\u003c\/td\u003e\n\u003ctd\u003e≤0.125 A\u003c\/td\u003e\n\u003ctd\u003e≤0.19 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eSupply voltage equals back EMF plus phase current times winding resistance. Use a suitable stepper driver and current setting. Monitor temperature during extended operation and provide cooling or rest intervals as needed. The 128 mA-per-phase parameter and this test table have different stated conditions.\u003c\/p\u003e\u003ch2\u003eConnection and Excitation\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eConnector pin\u003c\/th\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003cth\u003ePhase reference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eBrown\u003c\/td\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003ctd\u003eB return\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003eA return\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eWhite and red form one coil; brown and black form the other. Both the connection drawing and excitation table identify brown as B, black as B return, white as A and red as A return. Check coil pairs and direction on the actual unit before connecting it to a driver. The two-phase full-step sequence energizes A\/B, A-return\/B, A-return\/B-return and A\/B-return in order; reversing the sequence reverses rotation. Do not connect a bare stepper motor directly like a brushed DC motor.\u003c\/p\u003e\u003ch2\u003eMechanical Fit and Optional Flange Nut\u003c\/h2\u003e\u003cp\u003eThe shaft drawing specifies M4-0.7 thread and 55 mm projection. Nominal thread advance is 0.7 mm per shaft revolution only with a matching restrained nut; it does not establish usable travel, linear accuracy, backlash or axial load capacity. A guide and carriage are separate mechanical components.\u003c\/p\u003e\u003cp\u003eThe optional nut has a 22 mm flange diameter, 10 mm body diameter, 12 mm overall length, 2 mm flange thickness and 8 mm section reference. Four 3 mm holes use a 16 mm spacing reference; the side drawing marks an M3 through feature. Confirm fit and clearances before machining or assembly.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eCompact instrument adjustment, focus mechanisms, miniature robotic mechanisms and small positioning projects where the selected speed, torque, shaft and driver are suitable. Application examples do not include a robot, optical mechanism, linear guide, carriage or complete machine.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMotor Only: one selected-ratio motor with M4 threaded shaft and lead.\u003c\/li\u003e\n\u003cli\u003eMotor + Flange Nut: one motor and one flange nut.\u003c\/li\u003e\n\u003cli\u003eMotor + Open Driver: one motor and one pictured open control board.\u003c\/li\u003e\n\u003cli\u003eMotor + Enclosed Driver: one motor and one pictured enclosed control board.\u003c\/li\u003e\n\u003cli\u003eMotor + Flange Nut + Open Driver: one motor, one nut and one open board.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eA DC power supply, external automation controller, carriage and complete machine are not included. The pictured open board is marked STEPCON-V1.1 and 5–18 V at its power connector. This is the board supply reference, not the motor phase rating. PUL, DIR and EN labels are visible; external signal timing and logic levels depend on the actual board revision. Match the board and motor current setting before use.\u003c\/p\u003e\u003ch2\u003eInstallation and Operation\u003c\/h2\u003e\u003cp\u003eUse a compatible two-phase driver, verify coil pairs and support the driven mechanism. Avoid overload, stall and unsupported shaft loads. Keep mounting screws clear of internal components. Speed, noise and heating vary with drive mode, supply, load and duty cycle.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eDoes every package include a nut or driver?\u003c\/h3\u003e\u003cp\u003eNo. Only the accessories explicitly named in the chosen package are included.\u003c\/p\u003e\u003ch3\u003eCan the bare motor run directly from DC?\u003c\/h3\u003e\u003cp\u003eIt needs a compatible two-phase stepper driver and an appropriate current setting.\u003c\/p\u003e\u003ch3\u003eIs it a complete linear actuator?\u003c\/h3\u003e\u003cp\u003eNo. It is a geared stepper with a threaded rotary shaft; a nut is optional and the guide and carriage are separate.\u003c\/p\u003e\u003ch3\u003eDoes the 10:1 option use the 30:1 torque figures?\u003c\/h3\u003e\u003cp\u003eNo. The technical table does not give a 10:1 torque row.\u003c\/p\u003e\u003ch2\u003eVisual Details\u003c\/h2\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local6882-dimensions-phase-corrected.webp?v=1792677513\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"M4-0.7 threaded-shaft motor dimensions\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local6882-dimensions-phase-corrected.webp?v=1792677513\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eM4-0.7 threaded-shaft motor dimensions\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-nut-dimensions.webp?v=1792676343\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Optional flange nut dimensions\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-nut-dimensions.webp?v=1792676343\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eOptional flange nut dimensions\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-performance.webp?v=1792676348\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"5 V \/ IC 6219 ratio and torque reference\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-performance.webp?v=1792676348\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003e5 V \/ IC 6219 ratio and torque reference\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-drive-reference.webp?v=1792676354\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Motor input full-step test reference\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-drive-reference.webp?v=1792676354\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eMotor input full-step test reference\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local6882-connection-phase-corrected.webp?v=1792677520\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Two-phase motor connection and excitation\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local6882-connection-phase-corrected.webp?v=1792677520\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eTwo-phase motor connection and excitation\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-construction.webp?v=1792676366\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Metal gear train and threaded output\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-construction.webp?v=1792676366\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eMetal gear train and threaded output\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-driver-packages.webp?v=1792676372\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Package selection and driver operation\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-82-driver-packages.webp?v=1792676372\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003ePackage selection and driver operation\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"CHIHAI MOTOR","offers":[{"title":"Motor Only \/ 30:1","offer_id":68094037295328,"sku":"CHSGM1210BYM4-6882-01","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 50:1","offer_id":68094037328096,"sku":"CHSGM1210BYM4-6882-02","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 100:1","offer_id":68094037360864,"sku":"CHSGM1210BYM4-6882-03","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 298:1","offer_id":68094037393632,"sku":"CHSGM1210BYM4-6882-04","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 10:1","offer_id":68094037426400,"sku":"CHSGM1210BYM4-6882-05","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Motor + Flange Nut \/ 30:1","offer_id":68094037459168,"sku":"CHSGM1210BYM4-6882-06","price":29.52,"currency_code":"USD","in_stock":true},{"title":"Motor + Flange Nut \/ 50:1","offer_id":68094037491936,"sku":"CHSGM1210BYM4-6882-07","price":29.52,"currency_code":"USD","in_stock":true},{"title":"Motor + Flange Nut \/ 100:1","offer_id":68094037524704,"sku":"CHSGM1210BYM4-6882-08","price":29.52,"currency_code":"USD","in_stock":true},{"title":"Motor + Flange Nut \/ 298:1","offer_id":68094037557472,"sku":"CHSGM1210BYM4-6882-09","price":29.52,"currency_code":"USD","in_stock":true},{"title":"Motor + Flange Nut \/ 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