How to distinguish different types of dc motor?
Usually we define one dc motor according to it's dimensions.
For example 130 dc motor, 260 dc motor, 370 dc motor, 550 dc motor, 775 dc motor. Basically, the first number of the motor model is larger, the motor's diametion will be bigger. Below sample dimension drawings for your easy understanding.
130 dc motor size drawing:
260 dc motor size drawing:
370 dc motor size drawing:
550 dc motor size drawing:
775 dc motor size drawing:
All of our dc motors are cerificated with CE/FCC/ROHS to ensure good quality.