According to relative motion: plane gear reducer (axis parallel); space gear reducer (axis not parallel).
According to tooth profile curve: involute gear; cycloid gear; arc gear; parabolic gear
According to the speed, it can be divided into high-speed, medium-speed and low-speed gear transmission.
According to the transmission ratio: fixed transmission ratio, variable transmission ratio gear transmission
Classified by closed form: open gear reducer, closed gear reducer
Advantages and disadvantages of gear reducer
Advantages of gear reducer: stable transmission ratio, high transmission efficiency; high reliability;
modified gear
Standard gears are prone to 'undercut' phenomenon, and variable gears can fundamentally prevent 'undercut' phenomenon, so variable gears are widely used.
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