The most basic definition of the gearbox is that it's a mechanical unit or part consisting of the gear educate or list of gears embedded inside a housing. Gears in gearboxes is often amongst quite a few varieties, from bevel and helical gears to worm gears and planetary gears. https://gearbox64185.pages10.com/gearbox-things-to-know-before-you-buy-69153050