{"product_id":"chihai-chw-9l370-5v-turntable-dc-gear-motor-131-1","title":"CHIHAI CHW-9L370 5V Turntable DC Gear Motor, 131:1, 9-Tooth Gear","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 CHW-9L 370 is a compact \u003ca href=\"https:\/\/rcdrone.top\/collections\/dc-gear-motor\"\u003eDC gear motor\u003c\/a\u003e for slow rotary mechanisms and turntable drives. Its worm-and-gear reduction provides a fixed 131: 1 ratio and an exposed nine-tooth output gear. Every package uses the 5 V motor; choose the motor alone or a package with lead, speed controller and 5 V supply.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e370-size brushed permanent-magnet motor with copper windings.\u003c\/li\u003e\n\u003cli\u003eWorm reduction and module 2.0 output gear with nine teeth.\u003c\/li\u003e\n\u003cli\u003eCompact mounting ears and a low-profile metal gearbox.\u003c\/li\u003e\n\u003cli\u003ePush-on lead and controller packages available for easier connection and speed adjustment.\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 \/ CHW-9L 370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003e370-size permanent-magnet brushed DC motor with worm-and-gear reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated supply\u003c\/td\u003e\n\u003ctd\u003e5.0 V DC; 3–24 V is a custom family range, not the supplied winding rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReduction ratio\u003c\/td\u003e\n\u003ctd\u003e131: 1, fixed for every package\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput gear\u003c\/td\u003e\n\u003ctd\u003e9 teeth, module 2.0, 20° pressure angle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReference no-load speed\/current\u003c\/td\u003e\n\u003ctd\u003e18 rpm \/≤50 mA at 5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated torque\/speed\/current\u003c\/td\u003e\n\u003ctd\u003e850 g·cm \/14 rpm \/≤150 mA at 5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStall torque\/current\u003c\/td\u003e\n\u003ctd\u003e≥3.5 kg·cm \/≤0.5 A; not continuous operating ratings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReference net mass\u003c\/td\u003e\n\u003ctd\u003eApproximately 125 g; shipping weight is separate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody envelope\u003c\/td\u003e\n\u003ctd\u003e61.5 ×31.3 mm reference, excluding mounting-ear extensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall mounting outline\u003c\/td\u003e\n\u003ctd\u003e68.2 ×41.7 mm drawing reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eTwo 3.5 mm holes with 38 mm horizontal and 24 mm vertical references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\/gearbox split\u003c\/td\u003e\n\u003ctd\u003e30.8 mm motor and 30.7 mm gearbox drawing references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide profile\u003c\/td\u003e\n\u003ctd\u003e25 mm maximum reference; 20.1 mm and 17.5 ±0.5 mm features\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear support features\u003c\/td\u003e\n\u003ctd\u003e10.5 mm and 14.5 mm diameter references; 2 mm and 3 mm side features\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear tip diameter\u003c\/td\u003e\n\u003ctd\u003e22 mm,−0.04\/−0.14 tolerance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear root diameter\u003c\/td\u003e\n\u003ctd\u003e13.41 mm,+0\/−0.1 tolerance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear face-width reference\u003c\/td\u003e\n\u003ctd\u003e6.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear geometry\u003c\/td\u003e\n\u003ctd\u003eProfile shift 0; span over 2 teeth 9.11 mm,+0\/−0.06; tip radius 0.4 mm, root radius 0.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003ePackage Selection\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Only\u003c\/td\u003e\n\u003ctd\u003eOne motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + Lead\u003c\/td\u003e\n\u003ctd\u003eOne motor and matching push-on terminal lead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + Lead + Speed Controller\u003c\/td\u003e\n\u003ctd\u003eOne motor, lead and compact speed-controller board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + Lead + Controller + 5 V Supply\u003c\/td\u003e\n\u003ctd\u003eOne motor, lead, compact speed controller and 5 V power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eThe pictured power-supply plug style is an example; choose a compatible mains adapter for the installation. A complete turntable, tabletop, ring gear, mounting screws and enclosure are not included.\u003c\/p\u003e\u003ch2\u003eOutput Gear and Mechanical Fit\u003c\/h2\u003e\u003cp\u003eMatch the mating gear to the nine-tooth, module 2.0, 20° output profile. Use the preserved mounting and gear drawings before machining an adapter. The 61.5 ×31.3 mm body reference excludes mounting-ear extensions; the mounting drawing gives 68.2 ×41.7 mm overall references. Keep the exposed gear guarded and avoid axial impact, misalignment and excessive radial load.\u003c\/p\u003e\u003ch2\u003eConnection and Speed Control\u003c\/h2\u003e\u003cp\u003eFor the controller package, connect the motor through the push-on lead to the controller motor output, and connect a 5 V DC supply to its power input. Match the marked power-input polarity. The knob adjusts speed and includes the illustrated switch function; the indicator shows switch\/power status.\u003c\/p\u003e\u003cp\u003eThe controller input requires DC. Never connect household AC directly to the board or motor. Reverse motor leads to change rotation when necessary; do not reverse the controller power-input polarity. The polarity illustration marks the positive and negative motor terminals; check the actual terminals before connection. An illustrated timer is a wiring example and is not an additional selectable package item.\u003c\/p\u003e\u003ch2\u003ePerformance and Operation\u003c\/h2\u003e\u003cp\u003eAt 5 V, the reference no-load speed is 18 rpm and rated-load speed 14 rpm. Rated torque is 850 g·cm; the 3.5 kg·cm stall reference is not a continuous torque rating. The performance plot is a 5 V reference, with torque on the horizontal axis and speed, current, power and efficiency scales on the left. Provide startup-current capacity, overcurrent protection and ventilation. Avoid stall and abrupt reversing under load.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eSmall rotary displays, turntable mechanisms and other slow-speed geared-motion projects. Suitability depends on mating-gear geometry, required torque, duty cycle and mounting; the motor is not a complete load-rated table or robot drive assembly.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cp\u003eOne CHW-9L 3705 V motor and only the accessories listed for the selected package. Internal-gear and rotor pictures illustrate components inside the motor, not extra loose parts.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eCan I select a different voltage or reduction ratio?\u003c\/h3\u003e\u003cp\u003eNo. These four packages all use 5 V and 131: 1 reduction. The wider custom family range is not a selectable winding here.\u003c\/p\u003e\u003ch3\u003eDoes Motor Only include a power supply?\u003c\/h3\u003e\u003cp\u003eNo. A 5 V supply is included only in the package that explicitly names it.\u003c\/p\u003e\u003ch3\u003eCan I use stall torque as continuous working torque?\u003c\/h3\u003e\u003cp\u003eNo. Use the rated torque and speed reference for normal operation and avoid prolonged stall.\u003c\/p\u003e\u003ch3\u003eCan the controller connect directly to mains AC?\u003c\/h3\u003e\u003cp\u003eNo. It requires a correctly polarized DC supply; use the 5 V motor supply rating.\u003c\/p\u003e\u003ch2\u003eVisual Details\u003c\/h2\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-specifications.webp?v=1792737787\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"CHW-9L370 5V performance\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-specifications.webp?v=1792737787\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eCHW-9L370 5V performance\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-dimension-top.webp?v=1792737791\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Top view and motor\/gearbox envelope\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-dimension-top.webp?v=1792737791\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eTop view and motor\/gearbox envelope\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-dimension-side.webp?v=1792737795\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Side view and output gear\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-dimension-side.webp?v=1792737795\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eSide view and output gear\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-dimension-mount.webp?v=1792737799\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Mounting-ear references\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-dimension-mount.webp?v=1792737799\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eMounting-ear references\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-gear-profile.webp?v=1792737803\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Nine-tooth output gear profile\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-gear-profile.webp?v=1792737803\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eNine-tooth output gear profile\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-performance-curve.webp?v=1792737807\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"5V motor performance reference\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-performance-curve.webp?v=1792737807\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003e5V motor performance reference\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-connection.webp?v=1792737812\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"5V DC connection and speed control\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-98-connection.webp?v=1792737812\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003e5V DC connection and speed control\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"CHIHAI MOTOR","offers":[{"title":"Motor Only","offer_id":68109266878688,"sku":"CHIHAI-9L370-6898-01","price":24.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Lead","offer_id":68109266911456,"sku":"CHIHAI-9L370-6898-02","price":26.02,"currency_code":"USD","in_stock":true},{"title":"Motor + Lead + Speed Controller","offer_id":68109266944224,"sku":"CHIHAI-9L370-6898-03","price":30.77,"currency_code":"USD","in_stock":true},{"title":"Motor + Lead + Controller + 5V Supply","offer_id":68109266976992,"sku":"CHIHAI-9L370-6898-04","price":36.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/local68-98-package-1.jpg?v=1792737816","url":"https:\/\/rcdrone.top\/nl\/products\/chihai-chw-9l370-5v-turntable-dc-gear-motor-131-1","provider":"RCDrone","version":"1.0","type":"link"}