Ersatzkohlen f. ULTRA 920 Graupner 6360.1 Noticeable improvements in performance results from lower transfer resistance to the commutator. For clockwise rota-tion only. Permissible operating temperature of the brushes approx. 80ºC. Tuning brushes wear faster. Make sure no carbon dust reaches electronic components, such as receiver and controller. Pack with 1 pair each. For motor type ULTRA 920-4, 920-5 Length 8 mm "
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