... iron or aluminum gearbox are available. NOSEN Right angle gear reducers RNV-Series,cubic shape of gearbox.Model: ... 2:1. Special ratio,following clients' ordersTransmission Efficiency: 95%Gear Oil: HD320~680Max Revolutions: 1450 rpmAmbient Temperature: -20º ... engine drive water pump,textile,food processing machine,medicine,rotary axis drives, conveyors, packaging equipment,material handling,automation ...