Spur Gear Terminology Flashcards
0
Q
Addendum of a gear
A
Radial distance to top of the tooth
For full depth gears it is reciprocal of diametral pitch 1/D
1
Q
Pitch velocity or pitch circle velocity
A
Velocity of a pitch point..vt = Pi x d x rpm
2
Q
Base circle
A
Circle tangent to line of action
3
Q
Whole depth
A
Distance from addendum to dedendum circle
4
Q
Pitch terms
A
Diametral
Circular
Base
5
Q
Diametral pitch
A
Number of teeth per inch of pitch circle dia
P = N/d = 1/module
6
Q
Circular pitch
A
Distance between corresponding tooth points on a pitch circle
7
Q
Base pitch or normal pitch
A
Distance from a point on one gear to the corresponding point measured along the base circle
