Generally, there are wheel teeth, altitude, end surface, French surface, top round, tooth round, base circle, and division round.
Wheel teeth
The abbreviation is the raised part of each gear for meshing. These protruding parts are generally arranged in radiation -like, and the wheels on the pairing gear are in contact with each other, which can make the gear continuously meshing.
Altitude
It is the space between the two adjacent wheels on the gear; the end surface is the plane of the cylindrical gear or cylindrical worm, perpendicular to the gear or worm axis.
End surface
It is the plane at both ends of the gear.
Legal surface
Refers to the plane vertically on the wheel tooth line.
Peak round
It refers to the circle at the top of the teeth.
Glimpse
It refers to the circle at the bottom of the groove.
Base circle
Formed the increasing line to make a pure rolling circle.
Division round
It is the reference circle of the geometric size in the end surface.
