: Source: Luoyang Yufanda bearing clearance is also called bearing clearance. The so-called bearing clearance refers to the amount of movement when the bearing is not installed in the shaft or bearing box, and one of its inner rings or outer rings is fixed, and then the side with unfixed bearing clearance moves radially or axially. According to the direction of movement, it can be divided into radial clearance and axial clearance. Clearance during operation