Gears

Transfers motion between two shafts running parallel to each other. They are characterized by their teeth, which are straight and parallel to the gears axis of rotation.

• Spur Gear

• Worm Gear

• Bevel Gear

• Crown Gear

Conically shaped gears that transmit power between shafts that have intersecting axes of rotation.

• Spur Gear

• Bevel Gear

• Rack Gear

• Crown Gear

A gear mounted to a straight rod, such that it moves in a linear fashion when torque is applied to it by a spur gear (known as the pinion gear).

• Spur Gear

• Crown Gear

• Bevel Gear

• Rack and pinion Gear

The relationship between the numbers of teeth on two meshing gears used to transmit motion. It reflects the change in mechanical advantage resulting from the gears.

• Gear pitch

• Tooth decay

• Gear ratio

• aspect pitch

The ratio of output force to the input force applied to a mechanism is known as ___________________.

• Pressure

• Weight

• Mechanical Advantage

• 3.14

____________ gears come in pairs that mate together to transfer power between perpendicular shafts that have axes of rotation offset from one another. These gears resemble screws; as they spin they turn their mating wheel.

• Spur gears

• Bevel Gears

• Crown Gears

• Worm gears

True or False: Two meshed gears always rotate in opposite directions

• True

• False

The ______ gear is always the driving gear

• Compound

• rack and pinion

• bevel

• Worm

The ____ gear is used to convert between rotary and linear motion

• bevel

• worm

• rack and pinion

• idler

____ gears are used to transfer drive on a 90 degrees angle.

• Bevel

• Rack and pinion

• Worm

• Compound