Correct option is C
Bevel gears are used for
power transmission between intersecting shafts. These gears have
conical-shaped teeth and are designed to transmit motion
at an angle, typically 90°, though other angles are possible.
Reasons:
·
Designed for Angular Transmission:
· Bevel gears allow power transfer between shafts that
intersect at a point (mostly at 90°).
·
Types of Bevel Gears:
·
Straight Bevel Gears – Simple design, used for lower speeds.
·
Spiral Bevel Gears – More durable, smoother operation at high speeds.
·
Hypoid Gears – A variation used in
automotive differentials.
