A SELF-LOCKING STAINLESS STEEL COUPLING

Tooth machining is a very unique machining process. At Kroll Technologies LLC, we specialize in high precision machining and micro de-burring which are required to ensure proper tooth engagement to mating parts. This self-locking coupling nut project emphasizes these capabilities. Utilizing one of our Citizen L20 CNC Swiss machines, multiple processes were applied including turning, milling, internal threading, grooving, and boring. A proprietary tooth cutting process with engraving was also required on the mating coupling nut. This project also required micro de-burring, ultrasonic cleaning, de-ionized water rinse and in-house citric passivation, which ensure a residue and burr free part. Machined from 303 stainless steel, the finished part featured dimensions of .285" in length with a .352" diameter and .036" wall thickness. Customer specifications required the coupling nut to be machined to a 32 µin finish. We completed multiple dimensional inspections with automated vision systems to verify manufacturing tolerances of ±.0005". Tooth engagement testing was completed with the mating parts as well. We manufacture 3000 pieces annually for this Microwave connector industry customer with a 4 week lead time for smaller individual orders. This project emphasizes our CNC Swiss machining and post-machining capabilities.
To learn more about this project, or the processes used to manufacture it, see the table below or contact us directly.