Mechanical Engineering - Machine Design - Discussion

Discussion Forum : Machine Design - Section 6 (Q.No. 11)
11.
If the centre distance of the mating gears having involute teeth is increased, then the pressure angle
increases
decreases
remains unchanged
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 1 of 2.

Sandip said:   9 years ago
Velocity ratio remain constant with change in Centre distance. For involute gears.

Pressure ratio remain unchanged from start to end of engagement. But if centre distance change it is changed.

Chirag darji said:   4 years ago
Central distance invesely proportion to cos θ and cos the decreasing function so that.

Central distance in the gear having involute teeth is directly proportional to pressure angle.
(2)

Ganeshr said:   5 years ago
Increases because the radius of the pitch circle increases as centre distance increases.

Cos (Pressure angle) = base circle radius/pitch circle radius.

Hence pressure Angle increases.

SANJEEV KUMAR said:   9 years ago
The Pressure angle remain constant.

Vinay BEL said:   5 years ago
Agree, increases is the right one.

Neeraj said:   9 years ago
Good explanation, Agree @Sandip.

Hitesh Daka said:   9 years ago
Yes, it remains unchanged.

Dhaval Chaudhary said:   7 years ago
C is the right answer.

Jnk said:   9 years ago
It remains unchanged.

Ak singh said:   7 years ago
Very good @Sandeep.


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