Engine Gears are essential when driving motors and machines; they increase the output torque and adjust the direction and speed of rotation. They are primarily used to transmit rotational motion, but with the right gears and flat-toothed components, they can convert reciprocating motion to rotational motion and vice versa. Do you know the different types of gear and their characteristics?
Gear types can be classified according to the following four categories:
Depending on the material from which they are made, we can divide them into two groups: metal gears and plastic gears.
According to the shape of the gears, they are divided into cylindrical gears, bevel gears, and worm drives.
A spur gear is a disk with teeth carved on its perimeter. There are different types of spur gears:
Spur gears are the most common and cheapest on the market, although they are the noisiest and cannot be used at high speeds.
The helical gear is quiet, and the power transmission is more uniform and safe.
The purpose of bevel gears is to transmit motion between shafts that are angled to each other. These are truncated cones with teeth carved into the sides. Teeth can be straight or curved.
Worm drives are a special case of helical gears, where the pinion is a screw with a helical thread with one or more inlets.
The worm can mesh with the spur gear, forming a so-called worm drive. A worm gear is a wheel with special teeth, and its concave teeth mesh better with the screw.