{"product_id":"chihai-chr-gm37-bldc3650-brushless-dc-gear-motor-built-in-driver","title":"CHIHAI CHR-GM37-BLDC3650 Brushless DC Gear Motor with Built-in Driver","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 CHR-GM37-BLDC3650 is a 37 mm brushless \u003ca href=\"https:\/\/rcdrone.top\/collections\/dc-gear-motor\"\u003eDC gear motor\u003c\/a\u003e with a built-in commutation driver,all-metal reduction gears,ball-bearing support and a6 mm D-shaft. Select the dedicated12V or24V motor,ratio and motor-only,bracket or external brushless speed-controller package.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrushless permanent-magnet motor with integrated Hall commutation\/driver board.\u003c\/li\u003e\n\u003cli\u003eMetal spur gearbox and ball-bearing construction.\u003c\/li\u003e\n\u003cli\u003e0–5V speed command and separate CW\/CCW direction input.\u003c\/li\u003e\n\u003cli\u003eFG speed-feedback output for compatible external counting.\u003c\/li\u003e\n\u003cli\u003eOptional mounting bracket and external speed-control module.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCHR-GM37-BLDC3650\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003ePermanent-magnet brushless DC motor with all-metal spur reduction and built-in Hall commutation\/driver board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelectable supply\u003c\/td\u003e\n\u003ctd\u003eDedicated12V or24V winding; not interchangeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGearbox diameter\u003c\/td\u003e\n\u003ctd\u003e37 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor section\u003c\/td\u003e\n\u003ctd\u003e50 mm length;36 mm maximum diameter reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput shaft\u003c\/td\u003e\n\u003ctd\u003e6 mm diameter+0\/-0.03,D-flat5.4+0\/-0.1;21 ±0.5 mm projection;12 mm flat-length reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eSix M3 tapped holes on31 mm pitch circle;6x60° pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther outline references\u003c\/td\u003e\n\u003ctd\u003e12 mm front boss;6 mm front step;13 mm rear boss;lead280 ±5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGearbox L\u003c\/td\u003e\n\u003ctd\u003e19–29 mm,tolerance±0.3 mm,depends on ratio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet mass\u003c\/td\u003e\n\u003ctd\u003eApproximately280 g,varies with reduction ratio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed command\u003c\/td\u003e\n\u003ctd\u003eBlue wire:0–5V PWM input;1.2–3.3V analog speed reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFG feedback\u003c\/td\u003e\n\u003ctd\u003eYellow wire open-collector output;6 pulses\/revolution reference;external counting\/ratio interpretation required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFG electrical reference\u003c\/td\u003e\n\u003ctd\u003e5V\/10kΩ pull-up;VOH minimum4V,VOL0–0.6V;output current maximum5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDirection command\u003c\/td\u003e\n\u003ctd\u003eWhite wire0–5V;high≥2V CCW,low≤0.2V CW in terminal table\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection-current reference\u003c\/td\u003e\n\u003ctd\u003e3A shutdown\/protection reference in both voltage tables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal controller option\u003c\/td\u003e\n\u003ctd\u003eBrushless speed-control module in selected packages;motor already contains commutation driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eWiring and Speed Control\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWire\u003c\/th\u003e\n\u003cth\u003eSignal\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003ePower negative and shared signal ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003eVCC\u003c\/td\u003e\n\u003ctd\u003eSelected12V or24V positive;never reverse supply polarity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003ctd\u003ePWM \/ SPEED\u003c\/td\u003e\n\u003ctd\u003e0–5V speed command;not motor-supply voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYellow\u003c\/td\u003e\n\u003ctd\u003eFG\u003c\/td\u003e\n\u003ctd\u003eOpen-collector speed-feedback output;not speed\/brake input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003ctd\u003eCW\/CCW\u003c\/td\u003e\n\u003ctd\u003eDirection control;grounded with black for low state,otherwise use compatible0–5V signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eRed is supply positive and black is negative. Never reverse supply polarity to change direction; reversal is controlled by the white CW\/CCW wire.12V and24V are separate motor selections,not a universal input range. The12V terminal table gives12V ±10% for the12V version; it must not be applied to the24V winding.\u003c\/p\u003e\u003cp\u003eBlue accepts a0–5V PWM speed command; an analog1.2–3.3V speed reference is also listed. Use the compatible control signal and share black ground with motor-power negative. Keep the control source positive supply separate from motorVCC when providing a regulated control supply. Do not connect motorVCC to PWM,FG or direction signals. Where a potentiometer-style module is used,the blue command connects to its signal\/wiper terminal and its control supply must remain within the allowed signal range.\u003c\/p\u003e\u003cp\u003eFG is an open-collector speed-feedback output,with a5V\/10kΩ pull-up reference,minimum4V high,0–0.6V low and maximum5mA output current. The count reference is6 pulses per revolution; account for motor versus gearbox shaft and actual reduction when interpreting measured speed. Do not mistake FG for an AB quadrature encoder or absolute position feedback.\u003c\/p\u003e\u003ch2\u003eController and Stop-Wiring Reference\u003c\/h2\u003e\u003cp\u003eThe optional module is for brushless motor speed control; the motor already has a built-in commutation board. The alternate stop\/braking wiring illustration is a separate mode without speed adjustment. Do not assume simultaneous speed control and braking,an emergency-stop rating or a dedicated brake lead from the five-wire motor. Keep the yellowFG lead insulated when not connected to a compatible feedback input; do not connect it to a speed or brake terminal. A6–30V DC input label in the external-controller illustration describes that module,not universal motor voltage,and is not an AC mains input.\u003c\/p\u003e\u003ch2\u003eRatio and Gearbox Length\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRatio reference\u003c\/th\u003e\n\u003cth\u003eGearbox L mm\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.3:1\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10:1\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18.8:1\u003c\/td\u003e\n\u003ctd\u003e21.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30:1\u003c\/td\u003e\n\u003ctd\u003e21.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50:1\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e90:1\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e150:1\u003c\/td\u003e\n\u003ctd\u003e26.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e260:1\u003c\/td\u003e\n\u003ctd\u003e26.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e450:1\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e650:1\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e810:1\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003e810:1 is a family-table reference only,not a selectable ratio here. Only actual in-stock combinations are offered;the motor-only650:1\/24V combination is unavailable in this selection.\u003c\/p\u003e\u003ch2\u003eMotor Performance\u003c\/h2\u003e\u003cp\u003eNo-load and rated values describe separate operating points. Maximum power is a reference,not continuous output at every ratio. Red torque cells state a maximum permitted load of35kgf·cm (3.5N·m rounded reference),not a separately specified rated torque. Exceeding it can damage the gears. The3A shutdown\/protection reference is separate from rated current and is not a continuous operating target.\u003c\/p\u003e\u003ch3\u003e24V\u003c\/h3\u003e\u003cp\u003eMaximum power reference30W;no-load current≤320mA;shutdown\/protection-current reference3A.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRatio\u003c\/th\u003e\n\u003cth\u003eNo-load rpm\u003c\/th\u003e\n\u003cth\u003eRated kgf·cm\u003c\/th\u003e\n\u003cth\u003eRated rpm\u003c\/th\u003e\n\u003cth\u003eRated A max\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.3:1\u003c\/td\u003e\n\u003ctd\u003e1300\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e1070\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10:1\u003c\/td\u003e\n\u003ctd\u003e830\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e670\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18.8:1\u003c\/td\u003e\n\u003ctd\u003e425\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e355\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30:1\u003c\/td\u003e\n\u003ctd\u003e270\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50:1\u003c\/td\u003e\n\u003ctd\u003e165\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e135\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e90:1\u003c\/td\u003e\n\u003ctd\u003e90\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e150:1\u003c\/td\u003e\n\u003ctd\u003e55\u003c\/td\u003e\n\u003ctd\u003e35 maximum permitted load; rated value unspecified\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e260:1\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e35 maximum permitted load; rated value unspecified\u003c\/td\u003e\n\u003ctd\u003e27.5\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e450:1\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e35 maximum permitted load; rated value unspecified\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e650:1\u003c\/td\u003e\n\u003ctd\u003e12.5\u003c\/td\u003e\n\u003ctd\u003e35 maximum permitted load; rated value unspecified\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e810:1\u003c\/td\u003e\n\u003ctd\u003e10.2\u003c\/td\u003e\n\u003ctd\u003e35 maximum permitted load; rated value unspecified\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003e12V\u003c\/h3\u003e\u003cp\u003eMaximum power reference7W;no-load current≤200mA;shutdown\/protection-current reference3A.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRatio\u003c\/th\u003e\n\u003cth\u003eNo-load rpm\u003c\/th\u003e\n\u003cth\u003eRated kgf·cm\u003c\/th\u003e\n\u003cth\u003eRated rpm\u003c\/th\u003e\n\u003cth\u003eRated A max\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.3:1\u003c\/td\u003e\n\u003ctd\u003e650\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003ctd\u003e530\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10:1\u003c\/td\u003e\n\u003ctd\u003e415\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e335\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18.8:1\u003c\/td\u003e\n\u003ctd\u003e215\u003c\/td\u003e\n\u003ctd\u003e2.2\u003c\/td\u003e\n\u003ctd\u003e178\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30:1\u003c\/td\u003e\n\u003ctd\u003e135\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e112\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50:1\u003c\/td\u003e\n\u003ctd\u003e82\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e67.5\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e90:1\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e37\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e150:1\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e260:1\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e450:1\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e35 maximum permitted load; rated value unspecified\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e650:1\u003c\/td\u003e\n\u003ctd\u003e6.3\u003c\/td\u003e\n\u003ctd\u003e35 maximum permitted load; rated value unspecified\u003c\/td\u003e\n\u003ctd\u003e5.5\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e810:1\u003c\/td\u003e\n\u003ctd\u003e5.2\u003c\/td\u003e\n\u003ctd\u003e35 maximum permitted load; rated value unspecified\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e0.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eMatch the6 mm shaft and21 mm projection to the mechanism,and use the six-M3 front mounting pattern. Confirm actual gear ratio,gearbox length and rear-lead clearance before fabrication. Avoid overload,prolonged stall,forcing the output shaft and shorting signal wires to motor power. Size the power supply and wiring for the selected voltage and load.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eSuitable for compatible robot mechanisms,automation fixtures,small powered doors,positioning and pan assemblies using the selected reduction and external control signals. FG supplies speed feedback for a suitable controller;it is not a complete position-control system.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cp\u003eOne selected CHR-GM37-BLDC3650 motor with its five-wire lead. The bracket package adds the illustrated mounting bracket;the controller package adds the illustrated brushless speed-control module;the combined package includes both. A power supply,feedback counter,application controller and complete mechanism are not included.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eDoes the bare motor need an external commutation driver?\u003c\/h3\u003e\u003cp\u003eIt includes a built-in Hall commutation\/driver board. An external compatible control signal or the selected speed-controller module provides speed\/direction control as required.\u003c\/p\u003e\u003ch3\u003eCan I reverse the motor by swapping power polarity?\u003c\/h3\u003e\u003cp\u003eNo. Keep red positive and black negative;use the white direction-control lead. Reversed supply can damage the built-in board.\u003c\/p\u003e\u003ch3\u003eIs the12V motor also suitable for24V?\u003c\/h3\u003e\u003cp\u003eNo.12V and24V are distinct motor choices and must use their matching supply.\u003c\/p\u003e\u003ch3\u003eIs FG an AB encoder?\u003c\/h3\u003e\u003cp\u003eNo. It is a single open-collector speed-feedback output with a6-pulse-per-revolution reference.\u003c\/p\u003e\u003ch2\u003eVisual Details\u003c\/h2\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-overview.webp?v=1792807555\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"CHR-GM37-BLDC3650 - integrated brushless drive\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-overview.webp?v=1792807555\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eCHR-GM37-BLDC3650 - integrated brushless drive\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-dimensions.webp?v=1792807560\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Motor outline - dimensions in mm\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-dimensions.webp?v=1792807560\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eMotor outline - dimensions in mm\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-wiring.webp?v=1792807564\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Five-wire functions - preserve supply polarity\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-wiring.webp?v=1792807564\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eFive-wire functions - preserve supply polarity\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-terminal-reference.webp?v=1792807568\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Control terminal table - electrical reference\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-terminal-reference.webp?v=1792807568\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eControl terminal table - electrical reference\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-speed-control.webp?v=1792807573\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Optional speed module and stop-wiring modes\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-speed-control.webp?v=1792807573\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eOptional speed module and stop-wiring modes\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-performance-24V.webp?v=1792807577\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"24V - brushless gear motor performance\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-performance-24V.webp?v=1792807577\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003e24V - brushless gear motor performance\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-performance-12V.webp?v=1792807581\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"12V - brushless gear motor performance\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-performance-12V.webp?v=1792807581\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003e12V - brushless gear motor performance\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-ratio-length.webp?v=1792807585\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Ratio and gearbox length reference\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-ratio-length.webp?v=1792807585\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eRatio and gearbox length reference\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-driver-board.webp?v=1792807589\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Built-in brushless driver and Hall commutation\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-driver-board.webp?v=1792807589\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eBuilt-in brushless driver and Hall commutation\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-metal-gears.webp?v=1792807594\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Metal reduction gears and installation\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-gm37bldc3650-metal-gears.webp?v=1792807594\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eMetal reduction gears and installation\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"CHIHAI MOTOR","offers":[{"title":"Motor Only \/ 6.3:1 \/ 12V","offer_id":68123501920480,"sku":"CHI-GM37BLDC3650-68131-001","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 6.3:1 \/ 24V","offer_id":68123501953248,"sku":"CHI-GM37BLDC3650-68131-002","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 10:1 \/ 12V","offer_id":68123501986016,"sku":"CHI-GM37BLDC3650-68131-003","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 10:1 \/ 24V","offer_id":68123502018784,"sku":"CHI-GM37BLDC3650-68131-004","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 18.8:1 \/ 12V","offer_id":68123502051552,"sku":"CHI-GM37BLDC3650-68131-005","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 18.8:1 \/ 24V","offer_id":68123502084320,"sku":"CHI-GM37BLDC3650-68131-006","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 30:1 \/ 12V","offer_id":68123502117088,"sku":"CHI-GM37BLDC3650-68131-007","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 30:1 \/ 24V","offer_id":68123502149856,"sku":"CHI-GM37BLDC3650-68131-008","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 50:1 \/ 12V","offer_id":68123502182624,"sku":"CHI-GM37BLDC3650-68131-009","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 50:1 \/ 24V","offer_id":68123502215392,"sku":"CHI-GM37BLDC3650-68131-010","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 90:1 \/ 12V","offer_id":68123502248160,"sku":"CHI-GM37BLDC3650-68131-011","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 90:1 \/ 24V","offer_id":68123502280928,"sku":"CHI-GM37BLDC3650-68131-012","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 150:1 \/ 12V","offer_id":68123502313696,"sku":"CHI-GM37BLDC3650-68131-013","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 150:1 \/ 24V","offer_id":68123502346464,"sku":"CHI-GM37BLDC3650-68131-014","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 260:1 \/ 12V","offer_id":68123502379232,"sku":"CHI-GM37BLDC3650-68131-015","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 260:1 \/ 24V","offer_id":68123502412000,"sku":"CHI-GM37BLDC3650-68131-016","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 450:1 \/ 12V","offer_id":68123502444768,"sku":"CHI-GM37BLDC3650-68131-017","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 450:1 \/ 24V","offer_id":68123502477536,"sku":"CHI-GM37BLDC3650-68131-018","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor Only \/ 650:1 \/ 12V","offer_id":68123502510304,"sku":"CHI-GM37BLDC3650-68131-019","price":44.31,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 6.3:1 \/ 12V","offer_id":68123502543072,"sku":"CHI-GM37BLDC3650-68131-021","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 6.3:1 \/ 24V","offer_id":68123502575840,"sku":"CHI-GM37BLDC3650-68131-022","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 10:1 \/ 12V","offer_id":68123502608608,"sku":"CHI-GM37BLDC3650-68131-023","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 10:1 \/ 24V","offer_id":68123502641376,"sku":"CHI-GM37BLDC3650-68131-024","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 18.8:1 \/ 12V","offer_id":68123502674144,"sku":"CHI-GM37BLDC3650-68131-025","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 18.8:1 \/ 24V","offer_id":68123502706912,"sku":"CHI-GM37BLDC3650-68131-026","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 30:1 \/ 12V","offer_id":68123502739680,"sku":"CHI-GM37BLDC3650-68131-027","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 30:1 \/ 24V","offer_id":68123502772448,"sku":"CHI-GM37BLDC3650-68131-028","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 50:1 \/ 12V","offer_id":68123502805216,"sku":"CHI-GM37BLDC3650-68131-029","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 50:1 \/ 24V","offer_id":68123502837984,"sku":"CHI-GM37BLDC3650-68131-030","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 90:1 \/ 12V","offer_id":68123502870752,"sku":"CHI-GM37BLDC3650-68131-031","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 90:1 \/ 24V","offer_id":68123502903520,"sku":"CHI-GM37BLDC3650-68131-032","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 150:1 \/ 12V","offer_id":68123502936288,"sku":"CHI-GM37BLDC3650-68131-033","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 150:1 \/ 24V","offer_id":68123502969056,"sku":"CHI-GM37BLDC3650-68131-034","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 260:1 \/ 12V","offer_id":68123503001824,"sku":"CHI-GM37BLDC3650-68131-035","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 260:1 \/ 24V","offer_id":68123503034592,"sku":"CHI-GM37BLDC3650-68131-036","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 450:1 \/ 12V","offer_id":68123503067360,"sku":"CHI-GM37BLDC3650-68131-037","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 450:1 \/ 24V","offer_id":68123503100128,"sku":"CHI-GM37BLDC3650-68131-038","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 650:1 \/ 12V","offer_id":68123503132896,"sku":"CHI-GM37BLDC3650-68131-039","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Bracket \/ 650:1 \/ 24V","offer_id":68123503165664,"sku":"CHI-GM37BLDC3650-68131-040","price":47.23,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 6.3:1 \/ 12V","offer_id":68123503198432,"sku":"CHI-GM37BLDC3650-68131-041","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 6.3:1 \/ 24V","offer_id":68123503231200,"sku":"CHI-GM37BLDC3650-68131-042","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 10:1 \/ 12V","offer_id":68123503263968,"sku":"CHI-GM37BLDC3650-68131-043","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 10:1 \/ 24V","offer_id":68123503296736,"sku":"CHI-GM37BLDC3650-68131-044","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 18.8:1 \/ 12V","offer_id":68123503329504,"sku":"CHI-GM37BLDC3650-68131-045","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 18.8:1 \/ 24V","offer_id":68123503362272,"sku":"CHI-GM37BLDC3650-68131-046","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 30:1 \/ 12V","offer_id":68123503395040,"sku":"CHI-GM37BLDC3650-68131-047","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 30:1 \/ 24V","offer_id":68123503427808,"sku":"CHI-GM37BLDC3650-68131-048","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 50:1 \/ 12V","offer_id":68123503460576,"sku":"CHI-GM37BLDC3650-68131-049","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 50:1 \/ 24V","offer_id":68123503493344,"sku":"CHI-GM37BLDC3650-68131-050","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 90:1 \/ 12V","offer_id":68123503526112,"sku":"CHI-GM37BLDC3650-68131-051","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 90:1 \/ 24V","offer_id":68123503558880,"sku":"CHI-GM37BLDC3650-68131-052","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 150:1 \/ 12V","offer_id":68123503591648,"sku":"CHI-GM37BLDC3650-68131-053","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 150:1 \/ 24V","offer_id":68123503624416,"sku":"CHI-GM37BLDC3650-68131-054","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 260:1 \/ 12V","offer_id":68123503657184,"sku":"CHI-GM37BLDC3650-68131-055","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 260:1 \/ 24V","offer_id":68123503689952,"sku":"CHI-GM37BLDC3650-68131-056","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 450:1 \/ 12V","offer_id":68123503722720,"sku":"CHI-GM37BLDC3650-68131-057","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 450:1 \/ 24V","offer_id":68123503755488,"sku":"CHI-GM37BLDC3650-68131-058","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 650:1 \/ 12V","offer_id":68123503788256,"sku":"CHI-GM37BLDC3650-68131-059","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Brushless Speed Controller \/ 650:1 \/ 24V","offer_id":68123503821024,"sku":"CHI-GM37BLDC3650-68131-060","price":50.62,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 6.3:1 \/ 12V","offer_id":68123503853792,"sku":"CHI-GM37BLDC3650-68131-061","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 6.3:1 \/ 24V","offer_id":68123503886560,"sku":"CHI-GM37BLDC3650-68131-062","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 10:1 \/ 12V","offer_id":68123503919328,"sku":"CHI-GM37BLDC3650-68131-063","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 10:1 \/ 24V","offer_id":68123503952096,"sku":"CHI-GM37BLDC3650-68131-064","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 18.8:1 \/ 12V","offer_id":68123503984864,"sku":"CHI-GM37BLDC3650-68131-065","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 18.8:1 \/ 24V","offer_id":68123504017632,"sku":"CHI-GM37BLDC3650-68131-066","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 30:1 \/ 12V","offer_id":68123504050400,"sku":"CHI-GM37BLDC3650-68131-067","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 30:1 \/ 24V","offer_id":68123504083168,"sku":"CHI-GM37BLDC3650-68131-068","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 50:1 \/ 12V","offer_id":68123504115936,"sku":"CHI-GM37BLDC3650-68131-069","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 50:1 \/ 24V","offer_id":68123504148704,"sku":"CHI-GM37BLDC3650-68131-070","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 90:1 \/ 12V","offer_id":68123504181472,"sku":"CHI-GM37BLDC3650-68131-071","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 90:1 \/ 24V","offer_id":68123504214240,"sku":"CHI-GM37BLDC3650-68131-072","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 150:1 \/ 12V","offer_id":68123504247008,"sku":"CHI-GM37BLDC3650-68131-073","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 150:1 \/ 24V","offer_id":68123504279776,"sku":"CHI-GM37BLDC3650-68131-074","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 260:1 \/ 12V","offer_id":68123504312544,"sku":"CHI-GM37BLDC3650-68131-075","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 260:1 \/ 24V","offer_id":68123504345312,"sku":"CHI-GM37BLDC3650-68131-076","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 450:1 \/ 12V","offer_id":68123504378080,"sku":"CHI-GM37BLDC3650-68131-077","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 450:1 \/ 24V","offer_id":68123504410848,"sku":"CHI-GM37BLDC3650-68131-078","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 650:1 \/ 12V","offer_id":68123504443616,"sku":"CHI-GM37BLDC3650-68131-079","price":53.54,"currency_code":"USD","in_stock":true},{"title":"Motor + Controller + Bracket \/ 650:1 \/ 24V","offer_id":68123504476384,"sku":"CHI-GM37BLDC3650-68131-080","price":53.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/chihai-gm37bldc3650-g5.jpg?v=1792807598","url":"https:\/\/rcdrone.top\/ms\/products\/chihai-chr-gm37-bldc3650-brushless-dc-gear-motor-built-in-driver","provider":"RCDrone","version":"1.0","type":"link"}