UNIVERSAL-Kleingetriebe 3:1 Graupner 1139.30 Motor, gearbox and sterntube are combined to form a compact unit. Individual components are exchangeable in optional manner. Rapport 3:1
For E-motors SPEED 400 and E-motors with case Ø of approx. 28 mm and 2.3 mm shaft Ø
For prop shafts Sterntubes with 6 mm Ø
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