The Basic Principles and Classification of Gears

Gears are mechanical components that transmit power and motion through the meshing of their teeth. Based on the relationship of their axes, they can be divided into three main categories: parallel axis (spur gears), intersecting axis (bevel gears), and skew axis (worm gears). Their core parameters include module, pressure angle, and number of teeth, which determine the transmission ratio, torque, and efficiency. They are the "power pulse" of industrial equipment.