With the new BRUSHLESS Dr. SPEED motors GM-Racing has succeeded in developing highly efficient motors which set new standards in terms of reliability and power.
Multiple extra-thick windings together with extremely low-loss construction and sintered neodymium magnets for enormous power and high efficiency A thicker shaft ensures more accurate true-running of the magnets Cooling openingsmaintain favourable motor temperatures even under ultra-harsh competition conditions BRUSHLESS Dr. SPEED motors feature sensors and a sensor connector, and can therefore be operated with GM-Genius speed controllers with and without sensors. This means that the annoying sensor leads can be eliminated for even higher reliability Variable sensor timing High-performance ballraces for high revuluttions The motors comply with DMC rules and EFRA rules.
Specification
Nominal voltage: 7.2 V Operating voltage range: 4.8 ... 7.4 V Revs. / Volt (kV) approx. 8300 Winding count: 4.5T triangular pattern Current drain at max. efficiency approx. @ 7.2 V: 70 A Current drain at max. power approx. @ 7.2 V: 135 A Max. power at 7.2 V: 505 W Max. power at 6 V: 370 W Max. power at 4.8 V: 240 W Permissible motor direction: R and L No. of poles: 2 Overall length approx. 70 mm Case length approx. 52.5 mm Diameter approx. 35.8 mm Free shaft length approx. 15 mm Shaft diameter at output approx. 3.175 mm Weight approx. 180 g Recommended reduction ratio with six cells: 1:10 model cars, TW 1:7 - 1:10, 4 WD 1:13 - 1:15 Recommended speed controllers: GM-GENIUS 95
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