The drive factor is a worm. In buy to blend the wheel/worm into a worm equipment, it must be ensured that the middle distance is equivalent and the transmission ratio is equal. Center distances are available from inventory in little measures among 17mm and 80mm. Each and every centre length has a number of equipment ratios. Ep worm gears are ideal for the creation of worm drives with a shaft angle of 90°. Making use of a worm travel, extremely huge reduction ratios (up to 100:1) can be accomplished.