Mechanical Engineering - Machine Design - Discussion

Discussion Forum : Machine Design - Section 1 (Q.No. 42)
42.
Which of the following statement is correct for gears?
The addendum is less than dedendum
The pitch circle diameter is equal to the product of module and number of teeth
The pitch circle is always greater than the base circle
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
22 comments Page 3 of 3.

Atanu said:   4 years ago
Addendum > Dedendum.

Pitch circle = [(πD)/T] .
D= Pitch cycle dia, T= Number of teeth.

Dedendum dia is a base circle dia .
so, Base circle < Pitch circle is always.

That's why a correct answer is an option [C].
(1)

Atanu said:   1 year ago
Clearance = Dedendum - Addendum.
= 1.157 module - module.


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