Why Metric Retaining Rings Are Better Than You Think
If you've ever pulled apart a small motor or tinkered with a mountain bike, you've probably run into metric retaining rings without even realizing it. They're those clever little pieces of spring steel that sit in a groove and stop everything from sliding off a shaft or popping out of a hole. While they might look like simple pieces of wire or flat metal, they're actually doing a ton of heavy lifting in the background of just about every machine we use. ...