{"product_id":"chihai-chs-gm12-15by-m4-threaded-shaft-geared-stepper-motor","title":"CHIHAI CHS-GM12-15BY M4 Threaded-Shaft Geared Stepper Motor, 55mm","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-GM12-15BY-55 M4 is a compact two-phase \u003ca href=\"https:\/\/rcdrone.top\/collections\/electric-motors\"\u003egeared stepper motor\u003c\/a\u003e with an M4 threaded output shaft. Choose 10: 1, 30: 1, 50: 1, 100: 1 or298: 1 and a motor-only, driver, enclosed-driver or flange-nut package for compact positioning mechanisms.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAll-metal reduction gears and a two-phase, four-wire stepper structure.\u003c\/li\u003e\n\u003cli\u003e55 mm reference threaded shaft with an optional matching flange nut.\u003c\/li\u003e\n\u003cli\u003eFive actual ratio choices and package-specific driver options.\u003c\/li\u003e\n\u003cli\u003eCompact motor body and attached four-wire lead.\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-GM12-15BY-55 M4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eTwo-phase, four-wire permanent-magnet geared stepper motor with M4 threaded shaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGearbox\u003c\/td\u003e\n\u003ctd\u003eAll-metal reduction gears; five offered ratios10\/30\/50\/100\/298: 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody \/ motor diameter\u003c\/td\u003e\n\u003ctd\u003e15.5 mm drawing diameter; 19.50 mm reference body length excluding threaded shaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft\u003c\/td\u003e\n\u003ctd\u003eM4 thread; 55.0±0.5 mm one-ended projection; pitch not established, so linear travel per revolution is not specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e2×M1.6 holes; 9.0 mm spacing and 12.0 mm front reference; shaft shoulder0.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther drawing dimensions\u003c\/td\u003e\n\u003ctd\u003e9.0 mm gear section; 8.0 mm motor section; 10.3 mm rear length; diameter5.4 rear boss; 1.5 mm MAX projection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor mass\u003c\/td\u003e\n\u003ctd\u003eApproximately17 g net reference; packages vary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead and connector\u003c\/td\u003e\n\u003ctd\u003e150±5 mm; UL1571 AWG30; 4-pin1.25 mm pitch \/1.25-4Y reference; MOLEX51021-0400 and 50058-8000 drawing references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical reference\u003c\/td\u003e\n\u003ctd\u003e5 V DC\/L6219 driver; 150 mA per phase; 30Ω ±7% per phase; 9.5mH per phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply guidance\u003c\/td\u003e\n\u003ctd\u003e5–12 V operating\/application range with suitable current-controlled stepper driver; separate lower-voltage thermal guidance listed below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum gearbox torque\u003c\/td\u003e\n\u003ctd\u003e3.0kgf.cm; this is rotational torque, not axial thrust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBare motor\u003c\/td\u003e\n\u003ctd\u003eRequires a suitable two-phase driver; do not connect a DC supply directly as though it were a brushed motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eReduction and Torque Reference\u003c\/h2\u003e\u003cp\u003eThe following5 V\/L6219 reference includes family ratios not offered as retail choices here. Output step angle refers to shaft rotation after reduction; the thread pitch is not specified, so these values do not establish a linear positioning increment or axial load rating.\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 degrees\u003c\/th\u003e\n\u003cth\u003erpm at 1000PPS\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\u003e10\u003c\/td\u003e\n\u003ctd\u003e9.68\u003c\/td\u003e\n\u003ctd\u003e1.86\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e0.14\u003c\/td\u003e\n\u003ctd\u003e0.04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e19.36\u003c\/td\u003e\n\u003ctd\u003e0.93\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e0.28\u003c\/td\u003e\n\u003ctd\u003e0.08\u003c\/td\u003e\n\u003c\/tr\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\u003e100\u003c\/td\u003e\n\u003ctd\u003e0.42\u003c\/td\u003e\n\u003ctd\u003e0.12\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\u003e60\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e0.2\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\u003e30\u003c\/td\u003e\n\u003ctd\u003e1.4\u003c\/td\u003e\n\u003ctd\u003e0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e150.96\u003c\/td\u003e\n\u003ctd\u003e0.12\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e2.1\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e210\u003c\/td\u003e\n\u003ctd\u003e209.76\u003c\/td\u003e\n\u003ctd\u003e0.086\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e2.9\u003c\/td\u003e\n\u003ctd\u003e0.84\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\u003e10\u003c\/td\u003e\n\u003ctd\u003e3.0 max\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e380\u003c\/td\u003e\n\u003ctd\u003e379.16\u003c\/td\u003e\n\u003ctd\u003e0.047\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e3.0 max\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eReference phase current is 150 mA, phase resistance30Ω ±7% and phase inductance9.5mH. The table labels maximum self-starting frequency as more than1200PPS and maximum response frequency as more than900PPS. These differently labeled references do not establish a reliable guaranteed frequency ceiling; the application note gives an800–1200PPS context. Select a conservative start rate and acceleration profile for the actual load and driver.\u003c\/p\u003e\u003ch2\u003eVoltage and Thermal Guidance\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTest supply\u003c\/th\u003e\n\u003cth\u003eSuggested drive PPS\/Hz\u003c\/th\u003e\n\u003cth\u003eSuggested drive current\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.0 V\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e≤0.25 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7.4 V\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e≤0.15 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.0 V\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e≤0.10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.0 V\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e≤0.08 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.7 V\u003c\/td\u003e\n\u003ctd\u003e700\u003c\/td\u003e\n\u003ctd\u003e≤0.07 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eThis thermal\/application guidance is separate from the 150 mA-per-phase 5 V\/L6219 parameter reference. Do not treat the two current references as the same test condition. The winding relation is supply voltage=back EMF+phase current×resistance; use a suitable stepper driver and current limit. For long operation, monitor heating and provide cooling or programmed stop intervals when required.\u003c\/p\u003e\u003ch2\u003eWiring 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\u003eWire color\u003c\/th\u003e\n\u003cth\u003ePhase\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003ctd\u003eA+\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-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003eA-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eYellow\u003c\/td\u003e\n\u003ctd\u003eB+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eWhite\/red form phaseA; yellow\/black form phaseB. The sequence below shows the two-phase excitation reference; reversing the sequence reverses rotation. Confirm coil pairs and the selected driver before connection.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCoil\u003c\/th\u003e\n\u003cth\u003eStep1\u003c\/th\u003e\n\u003cth\u003eStep2\u003c\/th\u003e\n\u003cth\u003eStep3\u003c\/th\u003e\n\u003cth\u003eStep4\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003e+\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003ctd\u003e+\u003c\/td\u003e\n\u003ctd\u003e+\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA return\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e+\u003c\/td\u003e\n\u003ctd\u003e+\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB return\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e+\u003c\/td\u003e\n\u003ctd\u003e+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFlange Nut and Mechanical Fit\u003c\/h2\u003e\u003cp\u003eThe matching M4 threaded flange-nut reference has a 22 mm flange diameter, 10 mm body diameter, 12 mm overall length, 2 mm flange thickness, 8 mm thread-section reference and 16 mm mounting-hole spacing. Four mounting holes are3 mm diameter; the side drawing marks anM3 through feature. The nut is included only where named. Check thread fit and clearances before installing; no unsupported thread pitch, backlash or linear-force rating is promised.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eCompact instrument adjustment, camera positioning mechanisms, small robotic mechanisms and other miniature positioning projects where step control, reduction gearing and a threaded output are suitable. A linear guide, carriage, complete robot, external controller and power supply are not included.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMotor Only: one selected ratio motor with itsM4 threaded shaft and four-wire lead.\u003c\/li\u003e\n\u003cli\u003eOpen Driver: one motor and the pictured push-button driver board.\u003c\/li\u003e\n\u003cli\u003eEnclosed Driver: one motor and the pictured enclosed driver.\u003c\/li\u003e\n\u003cli\u003eFlange Nut: one motor and one matching flange nut.\u003c\/li\u003e\n\u003cli\u003eFlange Nut + Driver: one motor, one flange nut and one open driver board.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDriver versions, case and nut follow the selected package. Other packages do not include these accessories. The photographed open driver is marked STEPCON-V1.1 and 5–18 V at its power connector. This is a board input reference, not the motor phase-current rating; verify the actual board revision and current setting. PUL, DIR andEN labels are pictured, but detailed external signal levels and timing are not established here.\u003c\/p\u003e\u003ch2\u003eInstallation and Operation\u003c\/h2\u003e\u003cp\u003eSupport the mechanism so shaft loads remain suitable for the motor and gearbox; avoid overload and stall. Confirm screw clearance, coil pairs, current setting and mechanical fit before operation. Speed and torque depend on driver, supply, load and acceleration. Motor noise and heating vary with duty cycle. A bare motor requires a compatible bipolar stepper driver and a suitable supply.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eDoes every option include the flange nut?\u003c\/h3\u003e\u003cp\u003eNo. Only packages naming the flange nut include it.\u003c\/p\u003e\u003ch3\u003eCan I power the motor directly from a DC supply?\u003c\/h3\u003e\u003cp\u003eUse a suitable two-phase stepper driver. A bare motor is not wired like a brushed DC motor.\u003c\/p\u003e\u003ch3\u003eWhat is the linear travel per shaft revolution?\u003c\/h3\u003e\u003cp\u003eThe shaft is specified asM4, but thread pitch and lead are not established here. Confirm them for your mechanism before calculating travel.\u003c\/p\u003e\u003ch3\u003eIs the 3.0kgf.cm limit an axial load rating?\u003c\/h3\u003e\u003cp\u003eNo. It is a rotational gearbox-torque limit; it does not specify permissible axial thrust.\u003c\/p\u003e\u003ch3\u003eAre20: 1, 150: 1, 210: 1 and 380: 1 sold in this listing?\u003c\/h3\u003e\u003cp\u003eThose are family reference ratios in the parameter table. The selectable ratios are10: 1, 30: 1, 50: 1, 100: 1 and 298: 1.\u003c\/p\u003e\u003ch2\u003eVisual Details\u003c\/h2\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-performance.webp?v=1792670938\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"5V\/L6219 ratio and torque reference\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-performance.webp?v=1792670938\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003e5V\/L6219 ratio and torque reference\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-thermal.webp?v=1792670943\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Voltage and thermal\/application drive reference\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-thermal.webp?v=1792670943\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eVoltage and thermal\/application drive reference\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-wiring.webp?v=1792670949\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Four-wire bipolar stepper connection\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-wiring.webp?v=1792670949\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eFour-wire bipolar stepper connection\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-driver.webp?v=1792670956\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Driver packages and operation\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-driver.webp?v=1792670956\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eDriver packages and operation\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-dimensions.webp?v=1792670963\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Stepper motor dimensions in mm\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-dimensions.webp?v=1792670963\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eStepper motor dimensions in mm\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-flange_dimensions.webp?v=1792670970\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Optional matching M4 flange nut\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-74-flange_dimensions.webp?v=1792670970\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eOptional matching M4 flange nut\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"CHIHAI MOTOR","offers":[{"title":"Motor Only \/ 10:1 \/ M4 x55mm","offer_id":68092625027296,"sku":"CHSGM1215BYM4-6874-01","price":28.23,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 30:1 \/ M4 x55mm","offer_id":68092625060064,"sku":"CHSGM1215BYM4-6874-02","price":28.23,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 50:1 \/ M4 x55mm","offer_id":68092625092832,"sku":"CHSGM1215BYM4-6874-03","price":28.23,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 100:1 \/ M4 x55mm","offer_id":68092625125600,"sku":"CHSGM1215BYM4-6874-04","price":28.23,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 298:1 \/ M4 x55mm","offer_id":68092625158368,"sku":"CHSGM1215BYM4-6874-05","price":28.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Open Driver \/ 10:1 \/ M4 x55mm","offer_id":68092625191136,"sku":"CHSGM1215BYM4-6874-06","price":44.0,"currency_code":"USD","in_stock":true},{"title":"Motor + Open Driver \/ 30:1 \/ M4 x55mm","offer_id":68092625223904,"sku":"CHSGM1215BYM4-6874-07","price":44.0,"currency_code":"USD","in_stock":true},{"title":"Motor + Open Driver \/ 50:1 \/ M4 x55mm","offer_id":68092625256672,"sku":"CHSGM1215BYM4-6874-08","price":44.0,"currency_code":"USD","in_stock":true},{"title":"Motor + Open Driver \/ 100:1 \/ M4 x55mm","offer_id":68092625289440,"sku":"CHSGM1215BYM4-6874-09","price":44.0,"currency_code":"USD","in_stock":true},{"title":"Motor + Open Driver \/ 298:1 \/ M4 x55mm","offer_id":68092625322208,"sku":"CHSGM1215BYM4-6874-10","price":44.0,"currency_code":"USD","in_stock":true},{"title":"Motor + Enclosed Driver \/ 10:1 \/ M4 x55mm","offer_id":68092625354976,"sku":"CHSGM1215BYM4-6874-11","price":46.15,"currency_code":"USD","in_stock":true},{"title":"Motor + Enclosed Driver \/ 30:1 \/ M4 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