A gear set used to transmit power between two shafts that meet at a right angle is known as what?

The question is about gear sets that transmit power between two shafts meeting at a right angle. The correct answer encompasses both spiral bevel gear sets and hypoid gear sets because both are specifically designed for this purpose.

Spiral bevel gears are known for their high efficiency and smoother transmission of power, making them suitable for applications where noise and vibration need to be minimized. They have a spiral tooth design that allows for gradual engagement between the gears, which enhances their strength and ability to handle heavy loads.

Hypoid gears also transmit power between shafts at right angles but have a unique design that allows them to mesh even when the axes of the gears do not intersect. This feature facilitates smooth operation and enables a higher load capacity, making them prevalent in applications such as automobile differentials.

In conclusion, both spiral bevel and hypoid gears effectively enable power transmission at right angles, explaining why the answer includes both options. The inclusion of both gear types highlights the variety of solutions available for this mechanical requirement.