Design of Machine Elements - 2 - Mechanical Engineering (MCQ) questions and answers for Q. 11668

Q.  In force analysis of spur gears which component of force assists the rotation on driven gear?
- Published on 23 Sep 15

a. Axial component
b. Radial component
c. Tangential component
d. All of the above

ANSWER: Tangential component
 

    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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