DC deceleration motor brush sparks too much reason

Update:28 Feb 2018
Summary:

1, DC gear motor brush is not on the neutral line; 2, T […]

1, DC gear motor brush is not on the neutral line;
2, The rotor dynamic balance is not corrected;
3, DC gear motor overload or supply voltage is too high;
4, Commutator surface is not smooth or mica sheet protruding;
5, Armature winding or pole winding or commutation pole winding fault;
6, Improper brush pressure or commutator (Recommended: Yi Shun reducer) poor contact or brush wear or brush brand wrong.

 

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