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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

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 Correct Answer lead angle

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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