Answer to Question 1
Clearance is defined as the distance between the top of the tooth of one gear and the bottom of the meshing tooth space. (See figure 9-10). Backlash is the amount of side clearance of a gear tooth when two teeth mesh. More specifically, it is the space between meshing teeth measured at the pitch circle.
Answer to Question 2
The 20 pressure angle gives the gear tooth a wider base, resulting in greater strength and allows the use of smaller gears with fewer teeth for more compact and economical gear drives.
The difference between AZT-sensitive versus AZT-resistant reverse transcriptases
An adult tooth, longitudinal view showing internal structures of the crown and root.
The “Old Man” from La Chapelle shows evidence of extensive tooth loss and bone resorption.
Difference between chromosomes, chromatids, and chromatins
Resting Membrane Potential: Voltage Difference
An electron is accelerated from rest through a potential difference. After acceleration the ...