According to relative motion: plane gear reducer (axis parallel); Space gear reducer (axes are not parallel).
According to the tooth profile curve: involute gear; Cycloidal gear; Circular arc gear; Parabolic gear
According to the speed, it can be divided into high speed, medium speed and low speed gear transmission.
By 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 working reliability; Compact structure; Disadvantages of gear reducer with long service life: higher requirements for manufacturing and installation accuracy; It is not suitable for reducer with large distance between two shafts.
Modification gear
The standard gear is easy to produce the phenomenon of "undercutting", while the modified gear can fundamentally prevent the phenomenon of "undercutting", so the modified gear is widely used.
