A new series of 14 external retaining rings from Sterling Instrument are suitable for use on grooved shafts, bosses, tubes and studs. The S73LW2 models have a commonly used design to provide a large shoulder on small diameter shafts for effective retention of assemblies. The three prongs make contact with the bottom of the groove, which is usually relatively deep so as to increase the ring’s thrust load capacity. They feature resistance to relative rotation between the ring and the retained parts, wider application acceptance and are reusable while not marring the shaft surface during assembly or disassembly. The rings are made of PH 15-7Mo stainless steel for shaft diameters from 0.159 to 2.22cm and retaining ring clearances from 0.419 to 3.35cm. The retaining ring for shaft diameter of 2.54cm and retaining ring clearance of 3.89cm is made of cold rolled steel.
