Radial ball bearings are found so many of today’s moving mechanical devices. However, most people do not know how they’re made. Generally speaking, they are made of seven pieces (inner ring, outer ring, balls, retainer, closures, coatings, and lubricants). However, these seemingly simple components can be manufactured into literally billions of bearing varieties.
The following video premiered on Discovery Channel’s popular “How It’s Made” series and is a great representation about the high degree of automation used in producing precision ball bearings. In fact, the brand of bearings being manufactured is one of the brands supplied by AST Bearings (AST is an authorized, factory-direct distributor for NTN Bearings).
For more technical information about bearings, visit the bearing “Resource Center.”