Retaining rings(卡圈) >Retaining rings commonly called snap rings >Axially positioning and retaining hubs and bearings onto shafts >Requiring grooves on the shaft that weaken the shaft >Should be located where stresses are low Introduction to Engineering9 Introduction to Engineering Retaining rings（卡圈） Retaining rings commonly called snap rings Axially positioning and retaining hubs and bearings onto shafts Requiring grooves on the shaft that weaken the shaft Should be located where stresses are low