{"product_id":"chihai-chf-gm3865-520-dc-gear-motor","title":"CHIHAI MOTOR CHF-GM3865-520 DC Gear Motor, 6V\/12V\/24V","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe \u003ca href=\"https:\/\/rcdrone.top\/collections\/chihai-motor\"\u003eCHIHAI MOTOR\u003c\/a\u003e CHF-GM3865-520 is a permanent-magnet brushed \u003ca href=\"https:\/\/rcdrone.top\/collections\/dc-gear-motor\"\u003eDC gear motor\u003c\/a\u003e with a flat metal gearbox and 6 mm D-shaped output shaft. Select the motor winding,nominal ratio and accessory package. Available selections use a forward output shaft;the reverse-side installation and encoder-equipped illustrations below are mounting references.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMetal reduction gears in an L-shaped assembly.\u003c\/li\u003e\n\u003cli\u003e6 mm D-shaft with 23.5 mm projection and 12 mm flat-length references.\u003c\/li\u003e\n\u003cli\u003e6V0630,12V1260 and 24V motor selections where available.\u003c\/li\u003e\n\u003cli\u003eOptional bracket,PWM\/digital\/reversing controllers,power supply,gear or flange-coupler packages.\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\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue \/ scope\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\/model\u003c\/td\u003e\n\u003ctd\u003eCHIHAI MOTOR CHF-GM3865-520 permanent-magnet brushed DC gearmotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelectable windings\u003c\/td\u003e\n\u003ctd\u003e6V0630,12V1260 and 24V;check actual retained package\/ratio combination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelected output configuration\u003c\/td\u003e\n\u003ctd\u003eForward output shaft;reverse-side illustration is a separate mounting reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal ratio options\u003c\/td\u003e\n\u003ctd\u003e42:1,67:1,125:1,225:1,450:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody reference\u003c\/td\u003e\n\u003ctd\u003eL-shaped38×64.5×40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGearbox drawing envelope\u003c\/td\u003e\n\u003ctd\u003e38±0.3×64.4±0.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput shaft\u003c\/td\u003e\n\u003ctd\u003e6 mm diameter;5.4(+0\/−0.1)mm D-flat;23.5±0.5 mm projection;12 mm flat length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting references\u003c\/td\u003e\n\u003ctd\u003eFour M3 rear mounting-hole callout;4×3.1 and 4×3.3 mm drawing apertures;26.5±0.3×50±0.3 mm hole-pattern references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther drawing references\u003c\/td\u003e\n\u003ctd\u003e12 mm register;3 mm step;1.70 mm shoulder reference;31 mm motor-axis offset;33 mm motor diameter;7.5 mm rear register;0.5\/3\/6.5\/22.5\/11.80 mm axial references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor weight\u003c\/td\u003e\n\u003ctd\u003eApproximately165 g;varies by ratio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear construction\u003c\/td\u003e\n\u003ctd\u003eMetal reduction gears\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket\u003c\/td\u003e\n\u003ctd\u003eCarbon steel,black coated;approximately 53 g with mounting screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket drawing\u003c\/td\u003e\n\u003ctd\u003e64.3 mm width;43.5 mm upright;20.7 mm base;2 mm thickness;49.8 mm hole spacing;26.4\/11.4\/7.2 mm references;14.5 mm apertures;four3.1 mm holes;3.2\/14\/9.2\/8 mm base references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePWM controller reference\u003c\/td\u003e\n\u003ctd\u003e2.2–12V DC input for the illustrated small controller;not a 24V controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel\/gear\/coupler dimensions\u003c\/td\u003e\n\u003ctd\u003eUse the pictured package and actual fit;no unsupported tooth count,bore or pitch supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003ePerformance by Winding\u003c\/h2\u003e\u003cp\u003eThe nominal 67:1 selector corresponds to the 67.5:1 table reference. Keep each winding's current,speed and torque data separate. The24V2473 table instead lists135:1 in its third column;that column is a separate reference and must not be assigned to the selectable 125:1 option. The24V selection itself does not state a winding code. The6V0660 and 3V0330 tables are additional family references,not selectable windings here.\u003c\/p\u003e\u003ch3\u003e6V0630\u003c\/h3\u003e\u003cp\u003eMaximum power reference 0.6W;no-load current ≤50mA.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTable ratio\u003c\/th\u003e\n\u003cth\u003eNo-load rpm\u003c\/th\u003e\n\u003cth\u003eRated torque(kgf·cm)\u003c\/th\u003e\n\u003cth\u003eRated rpm\u003c\/th\u003e\n\u003cth\u003eRated current(A)\u003c\/th\u003e\n\u003cth\u003eStall current(A)\u003c\/th\u003e\n\u003cth\u003eStall torque \/ limit(kgf·cm)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e42:1\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003ctd\u003e1.00\u003c\/td\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤0.85\u003c\/td\u003e\n\u003ctd\u003e≥2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e67.5:1\u003c\/td\u003e\n\u003ctd\u003e46\u003c\/td\u003e\n\u003ctd\u003e1.50\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤0.85\u003c\/td\u003e\n\u003ctd\u003e≥4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e125:1\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e3.00\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤0.85\u003c\/td\u003e\n\u003ctd\u003e≥7.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e225:1\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e5.50\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤0.85\u003c\/td\u003e\n\u003ctd\u003e≥12.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e450:1\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e10.00\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤0.85\u003c\/td\u003e\n\u003ctd\u003e≥22.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003e12V1260\u003c\/h3\u003e\u003cp\u003eMaximum power reference 2.3W;no-load current ≤65mA.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTable ratio\u003c\/th\u003e\n\u003cth\u003eNo-load rpm\u003c\/th\u003e\n\u003cth\u003eRated torque(kgf·cm)\u003c\/th\u003e\n\u003cth\u003eRated rpm\u003c\/th\u003e\n\u003cth\u003eRated current(A)\u003c\/th\u003e\n\u003cth\u003eStall current(A)\u003c\/th\u003e\n\u003cth\u003eStall torque \/ limit(kgf·cm)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e42:1\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e2.00\u003c\/td\u003e\n\u003ctd\u003e95\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤1.7\u003c\/td\u003e\n\u003ctd\u003e≥5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e67.5:1\u003c\/td\u003e\n\u003ctd\u003e92\u003c\/td\u003e\n\u003ctd\u003e3.00\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤1.7\u003c\/td\u003e\n\u003ctd\u003e≥8.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e125:1\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e6.00\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤1.7\u003c\/td\u003e\n\u003ctd\u003e≥14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e225:1\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e11.00\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤1.7\u003c\/td\u003e\n\u003ctd\u003eMaximum25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e450:1\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e20.00\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤1.7\u003c\/td\u003e\n\u003ctd\u003eMaximum25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003e24V2473 reference\u003c\/h3\u003e\u003cp\u003eMaximum power reference 3.0W;no-load current ≤100mA.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTable ratio\u003c\/th\u003e\n\u003cth\u003eNo-load rpm\u003c\/th\u003e\n\u003cth\u003eRated torque(kgf·cm)\u003c\/th\u003e\n\u003cth\u003eRated rpm\u003c\/th\u003e\n\u003cth\u003eRated current(A)\u003c\/th\u003e\n\u003cth\u003eStall current(A)\u003c\/th\u003e\n\u003cth\u003eStall torque \/ limit(kgf·cm)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e42:1\u003c\/td\u003e\n\u003ctd\u003e170\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e105\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.30\u003c\/td\u003e\n\u003ctd\u003e≥5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e67.5:1\u003c\/td\u003e\n\u003ctd\u003e105\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.30\u003c\/td\u003e\n\u003ctd\u003e≥8.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e135:1\u003c\/td\u003e\n\u003ctd\u003e54\u003c\/td\u003e\n\u003ctd\u003e6.0\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.30\u003c\/td\u003e\n\u003ctd\u003e≥15.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e225:1\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003e11.0\u003c\/td\u003e\n\u003ctd\u003e21\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.30\u003c\/td\u003e\n\u003ctd\u003eMaximum25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e450:1\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e20.0\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.30\u003c\/td\u003e\n\u003ctd\u003eMaximum25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eAdditional 24V rated-torque references in N·m:0.2,0.3,0.6,1.1,2.0 in the same column order.\u003c\/p\u003e\u003ch3\u003e6V0660 series reference\u003c\/h3\u003e\u003cp\u003eMaximum power reference 1.7W;no-load current ≤100mA.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTable ratio\u003c\/th\u003e\n\u003cth\u003eNo-load rpm\u003c\/th\u003e\n\u003cth\u003eRated torque(kgf·cm)\u003c\/th\u003e\n\u003cth\u003eRated rpm\u003c\/th\u003e\n\u003cth\u003eRated current(A)\u003c\/th\u003e\n\u003cth\u003eStall current(A)\u003c\/th\u003e\n\u003cth\u003eStall torque \/ limit(kgf·cm)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e42:1\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e2.00\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤2.4\u003c\/td\u003e\n\u003ctd\u003e≥5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e67.5:1\u003c\/td\u003e\n\u003ctd\u003e92\u003c\/td\u003e\n\u003ctd\u003e3.00\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤2.4\u003c\/td\u003e\n\u003ctd\u003e≥8.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e125:1\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e6.00\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤2.4\u003c\/td\u003e\n\u003ctd\u003e≥14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e225:1\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e11.00\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤2.4\u003c\/td\u003e\n\u003ctd\u003eMaximum25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e450:1\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e20.00\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e≤0.7\u003c\/td\u003e\n\u003ctd\u003e≤2.4\u003c\/td\u003e\n\u003ctd\u003eMaximum25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003e3V0330 series reference\u003c\/h3\u003e\u003cp\u003eMaximum power reference 0.5W;no-load current ≤50mA.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTable ratio\u003c\/th\u003e\n\u003cth\u003eNo-load rpm\u003c\/th\u003e\n\u003cth\u003eRated torque(kgf·cm)\u003c\/th\u003e\n\u003cth\u003eRated rpm\u003c\/th\u003e\n\u003cth\u003eRated current(A)\u003c\/th\u003e\n\u003cth\u003eStall current(A)\u003c\/th\u003e\n\u003cth\u003eStall torque \/ limit(kgf·cm)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e42:1\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003ctd\u003e1.00\u003c\/td\u003e\n\u003ctd\u003e37\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.2\u003c\/td\u003e\n\u003ctd\u003e≥2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e67.5:1\u003c\/td\u003e\n\u003ctd\u003e46\u003c\/td\u003e\n\u003ctd\u003e1.50\u003c\/td\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.2\u003c\/td\u003e\n\u003ctd\u003e≥4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e125:1\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e3.00\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.2\u003c\/td\u003e\n\u003ctd\u003e≥7.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e225:1\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e5.50\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.2\u003c\/td\u003e\n\u003ctd\u003e≥12.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e450:1\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e10.00\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e≤0.35\u003c\/td\u003e\n\u003ctd\u003e≤1.2\u003c\/td\u003e\n\u003ctd\u003e≥22.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eMaximum-power figures describe separate operating points,not continuous rated output for every ratio. For the 12V1260,24V2473 and 6V0660 high-ratio tables,the merged25 kgf·cm cells state a maximum permissible gearbox load,not guaranteed stall torque. Avoid prolonged stalling,overload and repeated reversing starts.\u003c\/p\u003e\u003ch2\u003eMounting and Controller Selection\u003c\/h2\u003e\u003cp\u003eCheck the complete drawing and actual package before installation. The nominal 38×64.5×40 mm envelope and precise38±0.3×64.4±0.3 mm gearbox drawing are distinct references. Confirm shaft,front\/rear mounting interfaces and bracket clearance. Multiple bracket mounting positions are illustrated. The two-motor drawings show approximately 95 mm width for opposed same-axis mounting or approximately 48 mm width and 105 mm height for offset mounting. These are multi-motor layout references;each product selection includes one motor. Encoder-equipped reference photos do not add an encoder to the selected motor.\u003c\/p\u003e\u003cp\u003eUse DC voltage matching the selected winding. The pictured small PWM board has a 2.2–12V DC input reference and must never be connected directly to 220V AC. It is not specified for 24V operation. Check polarity at the controller's supply input and follow its actual terminal markings. Match digital and reversing controller ratings to the actual supply,motor current and load before wiring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePower-supply packages:\u003c\/strong\u003ethe package photographs identify a 12V adapter,including shared photographs used for 6V selections. Do not connect12V directly to a 6V motor. A6V selection needs a correctly rated6V supply or a verified voltage-control arrangement. A speed-controller package name alone does not confirm voltage conversion or a safe6V motor setting. Check the supplied adapter output and controller arrangement before use.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eCompatible smart kitchen mechanisms,small rotating barbecue racks,sunshade mechanisms and smart-curtain drives. Check required load,ratio,supply and mechanical fit. Speed changes with load;avoid stalled or overloaded operation.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSelected package\u003c\/th\u003e\n\u003cth\u003eContents\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Only\u003c\/td\u003e\n\u003ctd\u003e1 motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + Mounting Bracket\u003c\/td\u003e\n\u003ctd\u003e1 motor,1 bracket and mounting screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + PWM Speed Controller\u003c\/td\u003e\n\u003ctd\u003e1 motor and 1 small PWM controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + Bracket + PWM Controller\u003c\/td\u003e\n\u003ctd\u003e1 motor,1 bracket with screws and 1 small PWM controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + 12V Supply + Bracket\u003c\/td\u003e\n\u003ctd\u003e1 motor,1 bracket with screws and 1 pictured12V power-supply assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + 12V Supply + PWM Controller + Bracket\u003c\/td\u003e\n\u003ctd\u003e1 motor,1 bracket with screws,1 pictured12V supply and 1 small PWM controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + 12V Supply + Forward\/Reverse Controller\u003c\/td\u003e\n\u003ctd\u003e1 motor,1 pictured12V supply and 1 forward\/reverse controller assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + Digital Speed Controller + Bracket\u003c\/td\u003e\n\u003ctd\u003e1 motor,1 bracket with screws and 1 digital speed-controller assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + Bracket + Large Gear\u003c\/td\u003e\n\u003ctd\u003e1 motor,1 bracket with screws and 1 large gear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor + Bracket + Flange Coupler\u003c\/td\u003e\n\u003ctd\u003e1 motor,1 bracket with screws and 1 flange coupler with shown fastening hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eOnly the selected package's accessories are included. A motor-only selection does not include a bracket,controller,power adapter,encoder,large gear or flange coupler. Photo labels are shared package references;the actual motor winding and ratio follow the selected option.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eCan the 12V adapter be connected directly to a 6V motor?\u003c\/h3\u003e\u003cp\u003eNo. Match the motor voltage using a correct 6V supply or a verified voltage-control arrangement. Confirm the actual controller settings and output before connection.\u003c\/p\u003e\u003ch3\u003eDoes this listing include the reverse-side shaft or an encoder?\u003c\/h3\u003e\u003cp\u003eThe selectable shaft orientation is forward. Reverse-side and encoder-equipped photos are installation references and do not change the selected configuration.\u003c\/p\u003e\u003ch3\u003eDoes the 24V135:1 table describe my125:1 option?\u003c\/h3\u003e\u003cp\u003eNo. The third24V table column is marked135:1. No125:1 performance value is inferred from it.\u003c\/p\u003e\u003ch3\u003eIs25 kgf·cm a guaranteed high-ratio stall torque?\u003c\/h3\u003e\u003cp\u003eNo. The merged high-ratio table entries state a maximum permissible load;avoid stalling and overload.\u003c\/p\u003e\u003ch3\u003eDoes the bracket package include two motors?\u003c\/h3\u003e\u003cp\u003eNo. Each selection includes one motor. The two-motor drawings illustrate possible layouts only.\u003c\/p\u003e\u003ch2\u003eVisual Details\u003c\/h2\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d8.webp?v=1792623015\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d8.webp?v=1792623015\" alt=\"CHF-GM3865-520 construction overview\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eCHF-GM3865-520 construction overview\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d9.webp?v=1792623020\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d9.webp?v=1792623020\" alt=\"Full dimensioned motor drawing and four-M3 mounting reference\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eFull dimensioned motor drawing and four-M3 mounting reference\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d10.webp?v=1792623025\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d10.webp?v=1792623025\" alt=\"Motor specifications and voltage selections\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eMotor specifications and voltage selections\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d11.webp?v=1792623030\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d11.webp?v=1792623030\" alt=\"Metal gearbox construction\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eMetal gearbox construction\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d12.webp?v=1792623036\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d12.webp?v=1792623036\" alt=\"Copper-wound rotor\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eCopper-wound rotor\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d13.webp?v=1792623040\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d13.webp?v=1792623040\" alt=\"Forward D-shaped output shaft\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eForward D-shaped output shaft\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d14.webp?v=1792623045\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d14.webp?v=1792623045\" alt=\"Reverse-side shaft installation reference;selectable versions use forward shaft\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eReverse-side shaft installation reference;selectable versions use forward shaft\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d15.webp?v=1792623051\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d15.webp?v=1792623051\" alt=\"24V2473 performance reference;135:1 column does not describe125:1 option\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003e24V2473 performance reference;135:1 column does not describe125:1 option\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d16.webp?v=1792623056\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d16.webp?v=1792623056\" alt=\"Separate12V1260 and6V0630 performance references\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eSeparate12V1260 and6V0630 performance references\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d17.webp?v=1792623061\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d17.webp?v=1792623061\" alt=\"6V0660 and3V0330 additional winding references;not selectable here\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003e6V0660 and3V0330 additional winding references;not selectable here\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d18.webp?v=1792623066\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d18.webp?v=1792623066\" alt=\"Steel mounting bracket complete dimensions\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eSteel mounting bracket complete dimensions\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d19.webp?v=1792623070\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d19.webp?v=1792623070\" alt=\"Bracket installation views,specifications and53g weight reference\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eBracket installation views,specifications and53g weight reference\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d20.webp?v=1792623075\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d20.webp?v=1792623075\" alt=\"Two-motor opposed mounting reference;encoder-equipped motors are illustrative\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eTwo-motor opposed mounting reference;encoder-equipped motors are illustrative\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d21.webp?v=1792623079\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d21.webp?v=1792623079\" alt=\"Two-motor offset mounting reference,approximately48mm width and105mm height\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eTwo-motor offset mounting reference,approximately48mm width and105mm height\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d25.webp?v=1792623084\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d25.webp?v=1792623084\" alt=\"Optional2.2–12V DC PWM controller connection reference;never connect220VAC directly\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eOptional2.2–12V DC PWM controller connection reference;never connect220VAC directly\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d26.webp?v=1792623089\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d26.webp?v=1792623089\" alt=\"Alternative front mounting positions with bracket\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eAlternative front mounting positions with bracket\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d27.webp?v=1792623093\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/chihai-chf-gm3865-520-dc-gear-motor-strict-d27.webp?v=1792623093\" alt=\"Oblique view of motor installed in mounting bracket\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eOblique view of motor installed in mounting bracket\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"CHIHAI MOTOR","offers":[{"title":"Motor 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