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What are advantages of smaller pressure angles?
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Design of Machine Elements - 2
Q. What are the advantages of smaller pressure angles?
- Published on 23 Sep 15
a.
High radial force
b.
High separating force
c.
High contact ratio
d.
All of the above
ANSWER: High contact ratio
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Discussion
Sravanthi
-Posted on 25 Sep 15
Pressure angle is the angle between tooth face and gear wheel tangent. Smaller pressure angles have high contact ratio and result in noiseless operation. They have low separating and radial force.
But low pressure angles result in high contact and bending stresses. To avoid interference large number of teeth are required for small pressure angles.
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