Which component transmits power between intersecting shafts?

• A. Belt
• B. Bevel gears
• C. Gear train
• D. Pulley

Answer: (B)

Bevel gears are designed to transmit power between intersecting shafts. They are conical gears whose teeth mesh on a cone surface, letting two shafts that cross—often at right angles—transfer rotation and torque while also changing the direction of the shaft axis. This direct, rigid gear contact provides a defined gear ratio and efficient torque transfer at the crossing angle.

A belt and pulley setup transmits power via a flexible belt around pulleys and is typically used for parallel or non-intersecting layouts, with potential slippage. A gear train is a collection of gears used to achieve specific speed and torque changes, not a single component specifically chosen for intersecting shafts.