| 摘要 |
PROBLEM TO BE SOLVED: To prevent an increase in lead-wire fitting resistance in a leadless metal graphite brush. SOLUTION: A brush body 4 of the metal graphite brush 2 is formed of a leadless commutator side member 6 that contains graphite, copper and a metallic-sulfide solid lubricant, and a lead-wire embedding member 8 that contains graphite, copper, a metallic-sulfide solid lubricant and lead. |
