8×22×7

The notation "8×22×7" typically refers to the dimensions of a specific object, most commonly a bearing. In this context, the numbers represent the bore diameter, outer diameter, and width of the bearing, respectively, usually in millimeters. Therefore, an 8×22×7 bearing has an inner diameter of 8 mm, an outer diameter of 22 mm, and a width of 7 mm. These dimensions are standard in the bearing industry, allowing for interchangeability and compatibility with various applications.

This particular size of bearing is frequently used in small electric motors, such as those found in drones, RC vehicles, and some power tools. It is also common in small pumps, fans, and various mechanical assemblies where precise rotational movement is required within confined spaces. The designation "8×22×7" itself does not denote a specific manufacturer or bearing type (like deep groove ball bearing or angular contact bearing), but rather a precise set of physical dimensions. Users would need to consider the type of bearing and its load rating in addition to these dimensions for specific engineering or repair purposes.