boîte de vitesse cylindrique à deux étages de transmission de réducteur de pignon droit 75kw

75kw Two Stage Spur Cylindrical Gear Reducer / Gearbox / Gear Transmission Product Description 1. Characteristics A. The gear speed reducer is made of high strength low carbon alloy steel through carburization and quenching. The hardness of tooth surface may reach to HRC58-62. All gear adapts NC tooth grinding process, high-accuracy and good-contact performance; B. High transmission efficiency: single stage, more than 96.5%; double-stage, more than 93%; three-stage, more 90%;