A greater transfer of torque of worm gear efficiency

worm gear efficiency ,They are similar in appearance to spiral bevel gears and again have a helical tooth form. However, the pitch surface is a hyperboloid and the axes of the gear system do not intersect. This axial offset places a hypoid gear set geometry between that of a worm and a bevel gear set and therefore displays a combination of their characteristics. I.e. like a worm gear set it can transmit a large torque and, like small bevel gearboxes, it can run very smoothly with little noise or vibration. The more closely it resembles a bevel gear set, the higher the efficiency due to less losses through a lower sliding contact between the teeth. The positioning of the hypoid gear implies that multiple teeth mesh simultaneously thus sharing the load over a larger surface area and allowing for a greater transfer of torque.