What is gear and types

Question

Accepted Answer

Gears are mechanical components that transmit power and motion between rotating shafts. There are various types of gears.

Gears are used to transmit power and motion between rotating shafts
They are made up of teeth that mesh with each other to transfer torque
Types of gears include spur, helical, bevel, worm, rack and pinion, and planetary gears
Spur gears are the most common type and have straight teeth
Helical gears have angled teeth and produce less noise and vibration than spur gears
Bevel gears are used to transmit power between shafts that are at an angle to each other
Worm gears are used to transmit power at right angles and have a high gear reduction ratio
Rack and pinion gears are used to convert rotary motion into linear motion
Planetary gears are used in automatic transmissions and have multiple gears that rotate around a central gear

Top Nirma Junior Engineer interview questions & answers