The generate aspect is a worm. In buy to mix the wheel/worm into a worm gear, it should be ensured that the center distance is equivalent and the transmission ratio is equal. Center distances are available from inventory in little methods in between 17mm and 80mm. Each heart length has several equipment ratios. Ep worm gears are appropriate for the generation of worm drives with a shaft angle of 90°. Utilizing a worm travel, very big reduction ratios (up to a hundred:1) can be achieved.