Engineering Gear Quiz Flashcards
- Parallel or coplanar shafts connected by gears
- Straight teeth parallel to the axis of the wheel
Spur Gear
Inclined teeth to the axis of the shaft
Helical Gear
Double Helical
Thrusts are counterbalanced
Herringbone Gear
Intersecting coplanar gears, teeth taper in height and thickness
Straight bevel gear
Teeth are oblique and intersecting coplaner gears
Spiral bevel gear
A spiral do hickey on a gear
Worm Gear
Toothed bar + meshed gear to create linear force
Rack and Pinion
Gear inside a cylinder or cone
Internal Gear
Spiral bevel where the gears axes’ do not intersect
Hypoid Gear
Disk shaped gear + spur, conical, or helical pinion
Face Gear
Run chains or belts
Sprockets
Rotational Velocity
RPM
Torque
Nm
Gear Ratio
R
W out
W in/R
Speed and Gear Ratio have a
Inverse Relationship
Torque and Gear Ratio have a
Direct Relationship
T out
T in * R
Torque of a load
Radius of spool * F(load)
How many centimeters in a meter?
100
Rt
Rws * Rst
Speed of a car
Wout(pi*diameter)
What will you pay attention to?
UNITS
How many meters in 1 kilometer
1000 meters