Skateboard Bearings are small but crucial components that allow the wheels to spin smoothly and with minimal friction. When purchasing skateboard bearings, it's important to look for high-quality materials like chrome steel or ceramic balls that can withstand the demands of skating. The bearing's ABEC rating (ranging from 1 to 9) indicates its tolerance and precision, with higher ratings generally providing smoother performance but also a higher price tag. Additionally, factors like removable shields or built-in spacers can impact a bearing's speed and durability. Considering the intended skating style, budget, and desired balance between speed and durability can help skaters choose the right bearings for their needs.