Single Gear Juicers are a sub-category of Masticating Juicers, which feature Single Gear and Twin Gear options. Both types of Masticating Juicers produce higher quality juice than Centrifugal Juicers.
Single Gear Juicers have one central gear, also called an Auger. For this reason, Twin Gear Juicers are also called Single Auger Juicers. The auger turns slowly which spins the pulp into a mesh filter, causing the juice to flow separately. Twin Gear Juicers instead crush the pulp between two interlocking gears.