In comparison to the conical geometry of a spiral bevel gear, the basic geometry of hypoid gear is hyperbolic.
This helps in attaining an enhanced contact surface and a better tooth strength which allows for higher gear ratios and scope of higher torque transmission.
Hypoid gear sets have long been used in the differential of rear-wheel drive cars, trucks and robotic arms.
The scope of misalignment between the centers of the two interlinking shafts permits utilization of larger sized gears which enhances the contact surface area and reduces the wear and tear on the gear hence extending the life and power transmission capabilities of the gearboxes.
This leads to a quieter running gear set.