The article presents a method for splitting the total transmission ratio of two-stages bevel-helical gearboxes, basing on the constant torque condition of the mediate shaft. The achieved results may be used as scientific foundation for calculating and splitting the ratios of the other gearboxes.
 

This article presents a method for splitting the total transmission ratio of coaxial helical gearboxes in order to get the maximum load capacity of gear sets. Basing on relation of torque on the driving gear shafts and regular contact resistance of gear units, a new model for calculation of partial ratios has been established. 

This article presents a method for splitting the total power transmission ratios of helical gearboxes in order to get the minimal length of gearboxes. Basing on relation of-torque on the driving gear shafts and regular contact resistance of gear units, a new model for determination of partial ratios has been established.