“Fake bearings, also known as counterfeit bearings, are low-quality imitations of genuine bearings that are designed to deceive buyers with lower prices but lack the performance, reliability, and safety features of authentic bearings, posing significant risks to equipment, operations, and personnel.”
Make bearings with iron and carbon steel or repair waste bearings. The former will cause insufficient bearing hardness, while the latter will cause insufficient bearing accuracy.6 Strokes Teach you to Distinguish Between True and False Bearings and See Through 8 Fraud Means of fake Bearings