Arrangement structure of axial clearance of axial bearing for rectification roll used in filter belt rectification

The invention discloses an arrangement structure of axial clearance of axial bearing for rectification roll used in filter belt rectification, wherein an axial clearance exists between the inner side covers of a axial bearing and a bearing seat all the time, and the axial clearance is always larger than the subsequent traveling distance of the bearing toward the inner side when the bearing seat deviates. Sufficient axial clearance is provided between the inner side covers of the axial bearing and the bearing seat for length adjustment, such that in the deviation of the rectification roller, the length adjustment function can be realized by only overcoming the friction force applied to the bearing by the corresponding end or the bearing seat of corresponding side, and the deviation of the bearing seat and the rectification roll can be successfully completed. As the friction force applied to the bearing by the bearing seat is much smaller than that applied to the rectification force by the filter belt, the tens