Mechanical Engineering - Theory of machines - Discussion

Discussion Forum : Theory of machines - Section 1 (Q.No. 22)
22.
The centre distance between two meshing involute gears is equal to
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
5 comments Page 1 of 1.

Ganeshr said:   4 years ago
@Vinay

Let pcd of 1st gear is D1 & pcd of 2nd gear is D2.

We know that distance between the centre of gear is = (D1+D2)/2= R1+R2.

From the geometry of gear meshing.
R1 = (base circle radius if 1 )/cosφ.
R2 = (base circle radius if 2 )/cosφ.

Therefore R1+R2=sum of base circle radio/ cosφ.
(1)

Vinay BEL said:   5 years ago
Anyone explain in detail.

Nabam said:   9 years ago
It's more like base circle diameter equal to pitch circle diameter multiplied by cos (φ).

Dayanand yadav said:   9 years ago
@Roopkanwar.

C1 and C2 are base circle radii, not the diameter.

Roopkanwar said:   10 years ago
It's a formula that is equal to C1+C2/cos (phi).

Where C1 and C2 are base circle diameter.

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