FINAL TERM - MACHINE ELEMENTS

is a type of motion that combines rotation or translation of that object with respect to surface

a rolling where there is no sliding

Consists of such a relative motion of two lines or surfaces that consecutive points or elements

Two bodies may be rotating on their respective axes, so arranged that, by pure rolling contact

To obtain the expected velocity ratio of two tooth profiles, the normal line of their profiles must pass through the corresponding pitch point, which is decided by the velocity ratio.

The most commonly used conjugate tooth curve. We use the word involute because the contour of gear teeth curves inward.

A circle bounding the ends of the teeth, in a right section of the gear

The circle bounding the spaces between the teeth, in a right section of the gear.

The radial distance between the pitch circle and the addendum circle.

The radial distance between the pitch circle and the root circle.