Know the power tool type and how to find the corresponding carbon brush
We are mainly based on speed, current density, size and commutator performanceWe choose carbon brushes by experimenting with a lot of carbon brushes, and then record them and choose the ones that best meet the requirementsDifferent carbon brushes have different characteristicsSome special wear, no-load long endurance timeYes, especially for spark controlYes, especially good for EMCAnd so on, at present, I basically can only rely on the experiment and experience, as if there is no other good way.
Because most electric tool is the copy of foreign or domestic large and well-known brand products, such as Japan's MAKITA 4100 stone cutting machine with 303 carbon brush, Zhejiang 100 angle grinder with 51 carbon brush, 26 hammer with 21 brushes, just look for is the imitation of the machine, with the original machine manufacturers to see there is a Book brush type in the above, a model to sell electric tool shop, or ask sell electric tools, all know, remember do not buy too cheap, cheap ordinary machine if you just, if imported or domestic good machine, or more than 1000 watts of power to machine. With the original or high quality, because the brush has a direct impact on the rotor (or motor) life
