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In worm gears, the angle between the tangent to the thread helix on the pitch cylinder and the plane normal to the axis of worm is called

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in Machine Kinematics by (38.0k points)
In worm gears, the angle between the tangent to the thread helix on the pitch cylinder and the plane normal to the axis of worm is called

(a) pressure angle

(b) lead angle

(c) helix angle

(d) friction angle

I have been asked this question in an interview for internship.

The above asked question is from Worm Gears topic in division Toothed Gearing & Gear Trains of Machine Kinematics

1 Answer

0 votes
by (106k points)
Correct option is (b) lead angle

To explain I would say: Lead angle is the angle between the tangent to the thread helix on the pitch cylinder and the plane normal to the axis of the worm. It is denoted by λ.

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