1This DC gear motor using all metal gears, wearresistant, quiet, and possess long service life 2Pure copper coil stator and rotor, deceleration resistance and conductivity are strengthened, therefore the motor torsion is increased 3Overcurrent protection, this brushless motor will automatically cut off the power when the current reaches 3A, very flexible 4Apply hightemperature grease lubricating oil, which has the characteristics of low friction, noise reduction and slow temperature rise, which improves the service life of the gear 5Builtin two magnets inside, have the characteristics of high remanence, high coercivity, high magnetic energy product, high performance, and high torsion, which can improve the performance of the motor 6Used in various robots, robotic hands, automated production lines, antenna motion control, turntable motion control, various CNC machine tools, highaccuracy measuring instruments, electronic manufacturing equipment, pharmaceutical equipment, financial machinery, military industry Item Type: DC Gear Motor Model: XD-42GA755 Material: Copper Output Shaft Size: Approx. 8 x 20mm / 0.3 x 0.8in Insulation Resistance: After the rated operation of the motor under normal temperature and humidity, when measuring the insulation resistance between the coil and the motor shell with a DC500V resistance meter, it does not exceed 20M Temperature Rise: It is normal to install a gear box or equivalent heat sink and conduct rated operation under normal temperature and humidity by using the resistance method to measure the temperature rise of the coil below 70 Insulation Class: Class B(130) Operating Environment Temperature: Motor: -10~+40 (no icing) Use Environment Humidity: 85% or less (no condensation) CW/CCW: Yes Speed Adjusted: Yes Model VoltageDC/V No-Load Speed (rpm/min) No-Load Current(A) Load Speed (rpm/min) Loading Momentkgfcm Reduction Ratio1:00 PowerW XD-42GA755 12V 100 0.5 93 4.58 50 25 150 0.5 128 3.06 33.3 25 200 0.5 175 2.29 25 25 300 0.5 245 1.53 16.6 25 500 0.5 435 0.93 10 25 600 0.5 535 0.76 8.3 25 Notes: 1 Overload and Locked Rotor: When the motor is running, it generates heat due to the energy conversion that occurs inside the coil and the iron core, and the temperature gradually rises. The load is within the rated range, and the heat generation and heat dissipation are balanced, and the coil of the motor will not be burnt. However, it will cause heat under overload and locked-rotor conditions. When the running time is too long, the insulating film on the enameled wire of the coil is dissolved, causing a short circuit between the enameled wires and burning the motor. 2 When Running at Low Speed: For DC motors, carbon brushes are generally used. The rotating commutator rubs against the carbon brushes, creating sparks at the notches of the commutator. When the motor is running at a low speed, the carbon brush powder that is easily generated by the friction between the commutator and the carbon brush will accumulate in the commutator slot, causing a short circuit and burning the motor and driver. Please be very careful. 3 Precautions on the PWM Controller: In the PWM control state, when using the built-in motor of the electrolytic capacitor, the motor may not rotate at a certain fixed frequency. Please try to use varistor to hide the motor. (Need to do related tests) 4 Regarding Inertia and Braking: After the motor is powered off, the rotor will still rotate due to inertia, which is the inertia of the DC motor. If you want to stop the rotation immediately, you can short-circuit the positive and negative terminals after turning off the power. The use of this kind of brake is to use the motor to generate electricity (reverse current). The current may increase temporarily and shorten the life. 5 Treatment of Floor Motor: Because the magnetic tile is a brittle material, the DC motor may break the magnetic tile once it falls, causing the motor to block and cause burns. Please do not use the motor after it has landed at a high altitude. 1 x DC Gear Motor 1 x Bracket