The ILQ 5 bearing is a component that enables the smooth rotation of wheels on a skate frame. The abbreviation "ILQ", short for InLine Quality, denotes a quality standard specifically developed for inline skating needs. The number 5 indicates the specific level of manufacturing precision and the quality of the materials used. Within the ILQ series, these are bearings suitable for recreational and fitness skating. Unlike the more widespread ABEC standard, which only evaluates manufacturing tolerances, the ILQ rating is designed to better account for the specific stresses encountered during skating, such as lateral loads. Structurally, these bearings may differ, for example, by using fewer, larger balls to increase durability.