Technical Articles

Spur Gear Note

Posted: 2013-12-05 13:59:54  Hits: 1176
Spur Gear is the simplest, most common type of gear used. They consist of a cylinder or disk with the teeth projecting around the entire circumference, and although these teeth are not straight-sided in form, the edge of each tooth is straight and aligned parallel to the axis of rotation.These gears can be meshed together correctly only if they are fitted to parallel shafts.

Spur gears teeth meet suddenly, at a line of contact across their entire width. This causes stress and noise. As a result, spur gears make a characteristic whine at high speeds and can not take as much torque as helical gears.

Spur gears are the most common type of gears. They have straight teeth, and are mounted on parallel shafts. Sometimes, many spur gears are used at once to create very large gear reductions.

This is because the spur gear can be really loud. Each time a gear tooth engages a tooth on the other gear, the teeth collide, and this impact makes a noise. It also increases the stress on the gear teeth.

To reduce the noise and stress in the gears, most of the gears in your car are helical.

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