General InfoThe gearboxes for speed selection applicable to systems of dosage of seeds and fertilizers in seeders replace the old
train of chain gears.
The system of gear sliding has a specific number of speeds.
These kinds of system are managed by different number of handles according to the model.
It’s consisting in a couple of Gears Sub-Assembly welded for each handle. Each Gears Sub-Assembly has 2 or 3 gears.
There are the same number of fix and sliding Gears Sub-Assembly. The fix and sliding Gears Sub-Assembly can be in
driven or driver shaft, according with the couple.
The position of the sliding Gears Sub-Assembly is managed by the handles. The handles move for both sides, moving
the Gears Sub-Assembly in order to make agree only one gear of each Gears Sub-Assembly. In this way, according with
the combination of the gear in the different Gears Sub-Assembly is the ratio of the gearbox.