The definition of bearing clearance

Bearing clearance definition: a ring of bearing is fixed, another ring is not affected by load, along the radial or axial from a limit position to another extreme position of mobile & amp; 。 According to the direction of movement, the former is called radial clearance, the latter is called the axial clearance. Shown below for the centripetal ball bearings radial and axial clearance of the diagram. For rolling bearings can bear radial load, radial clearance under a preloaded state definition: in different angles, there is no external load, a ring relative to another ring, from a radial eccentric limit position to move to the opposite extreme position of the arithmetic mean of the radial distance. Includes the average ring in different angular position when the amount of relative displacement and rolling element group in the mobile when different angular position relative to the movement of a ring. For the centripetal ball bearings, theory of radial clearance is refers to the outer raceway diameter minus the diameter of inner ring raceway, minus two times the diameter of the roller. Internal and outer ring can separate a single taper roller bearings, thrust ball bearing, the concept of the clearance. But will be installed on the shaft and bearing seat, by adjusting the axial relative position of two ring, you can get a certain number of radial and axial clearance. When without instructions, generally refers to the radial clearance, the second section in the first chapter, bearing clearance size 0, l, 2, 3, 4, 5, 9 groups of seven, including six groups in the bearing number after respectively with C1 and C2 and C3, C4 and C5 and C9 to identify. Commonly used rolling bearing clearance is 0, 2, 3, 4, a total of four groups, including the 0 group known as the 'standard clearance', or 'basic groups'.