Opening a water bottle
In the differential of auto/truck.
A crown and pinion are used in steering and driving. A pinion gear is used to steer against the force of gravity, while the crown is a wheel with cogs lining along its rim.
tacos
Back lash is best described as how much the pinion gear will move before contacting and moving the crown gear. This is specified and measured on the crown gear.
a gear found in the differential that meshes with the crown wheel to deliver drive threw a 90 degree angle to the road wheel
That's the drive gear assembly in your rear differential ( the center part that is bigger )
Axle ratio is determined by the number of teeth on the crown gear and the number of teeth on the pinion gear. A 3.55 ratio for example means the pinion gear rotates 3.55 times to every one rotation of the crown gear. If you are going straight , the drive shaft will turn 3.55 times to one rotation of the wheel.
a crown and pinion is a st of gears that mesh at an angle.
The crown and pinion mechanism is found in lots of things.
There are different options for gear ratios , check the tag at the differential . If the tag is missing you can determine the ratio by dividing the number of teeth on the crown gear by the number of teeth on the pinion gear. Some crown gears have the ratio stamped on them.
count your teeth on your ring gear <big gear> and on you pinion <little gear> and the divide the ring gear teeth by the pinion