Gears Flashcards
What are gears
Gears are wheels with teeth which mesh to transmit rotary motion
What is a gear train
When two or more gears mesh together
What are 2 types of gears
Simple and compound
The centre wheel in 3 wheel gears
The idler
The smaller wheel is the
Driver
The bigger wheel Is the
Driven(load)
What is the formula R
R=r ➗ n
What does the rack and pinion do
Convert rotary motion into linear motion
What is the rack
Straight or flat
What is the pinion
Normal round gear
What does the pinion do
Rotates and moves the rack in a straight line
Where is the worm wheel usually found
On a electric motar
Describe the worm
It only has one tooth but is a screw thread
The worm wheel
Like a normal gear or spur gear
What do bevel gears do
Change the direction of drive in a gear system by 90° 
