How Many Teeth Does a Gear Have?

[DelDelilah]

Gears generally have a module (m) of ≥2. Below is relevant information about gears: 1. Composition: Typically consists of teeth, tooth spaces, end faces, normal planes, tip circles, root circles, base circles, and pitch circles. Each protruding part used for meshing is usually arranged radially, and the teeth of paired gears contact each other to enable continuous meshing operation; tooth spaces are the gaps between two adjacent teeth on a gear; end faces refer to planes perpendicular to the gear or worm axis on cylindrical gears or cylindrical worms; normal planes are planes perpendicular to the tooth line; tip circles are the circles where the tooth tips lie; root circles are the circles where the tooth spaces' bottoms lie. 2. Repair Methods: Gear repair methods include the reversal method, tooth insertion method, gear ring replacement method, plastic deformation method, and welding repair method. Gears often transmit power in one direction, leading to one-sided wear. When their structure is completely symmetrical, they can be flipped 180 degrees and reinstalled for use. If not symmetrical, the gear can first be annealed, the asymmetrical part cut off and welded to the other side of the gear, and then the gear can be heat-treated again.